Home Unusual neurological manifestations of bilateral medial medullary infarction: A case report
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Unusual neurological manifestations of bilateral medial medullary infarction: A case report

  • Ruizhi Zheng , Ting Zhang , Xianzhu Zeng , Miao Yu , Zhao Jin and Jing Zhang EMAIL logo
Published/Copyright: January 3, 2022

Abstract

Bilateral medial medullary infarction (BMMI) is an extremely rare type of cerebrovascular accident often resulting in poor functional consequences. “Heart appearance” on diffusion-weighted imaging (DWI) of magnetic resonance imaging (MRI) is the unique presentation of BMMI. In this article, we present an acute ischemic stroke patient whose brain MRI showed the atypical “heart appearance” sign, manifested unusual bilateral central facial paralysis concurrently. For an early diagnosis of BMMI, it is essential to recognize the characteristic clinical and MRI findings of this rare type of stroke. Abnormal small dot or linear DWI signal at the midline of the brainstem should not be ignored at the early stage of stroke.

1 Introduction

Medial medullary infarction (MMI) accounts for only less than 1–1.5% of ischemic strokes in the posterior circulation [1,2], in which bilateral infarctions are even rare. BMMI usually presents with acute onset of dysarthria, dysphagia and quadriplegia commonly sparing the face [3]. The progression in MRI technology plays an essential role in the differentiation with brainstem encephalitis and Guillain-Barre’s syndrome [4]. Although the characteristic “heart appearance” or “Y-shaped” sign is well recognized by neurologists, abnormal atypical signs on MRI must be noted as well. The aim of this article was to describe a rare case, where the patient had BMMI with bilateral central facial paralysis.

2 Case presentation

A 53 year old Chinese male machine operator presented with acute quadriplegia and numbness in his upper and lower extremities symmetrically on April 24, 2016. He also complained of noticeable slurred speech and difficulties in swallowing liquids. Droopy eyelids, double vision and vertigo were all denied. Past medical history included untreated hypertension for 10 years. He had a moderate alcohol consumption for 30 years; however, he was a heavy smoker (75 pack year). The suspected diagnosis was an acute ischemic stroke. Unfortunately, the initial manifestations appeared 14 h before he was admitted to the hospital so that he had missed the window period for intravenous recombinant tissue plasminogen activator (rt-PA). Thereafter, he was treated with tablet clopidogrel 75 mg, atorvastatin 20 mg daily and intravenous argatroban 10 mg twice a day.

On admission, the blood pressure was 178/90 mmHg, pulse was 68/min, and body temperature was 37.0°C. He was lucid but had dysarthria. Cranial nerve examination revealed normal pupils and eye movement. The pinprick and temperature sensations in the distribution of all three branches of the trigeminal nerve bilaterally were normal. There was central facial palsy on both sides; nevertheless, without loss of taste sensation in the anterior two-thirds of the tongue. The arch of the soft palate was paralyzed on both sides, while the absence of gag reflex and hoarseness were noted. The examinations of other cranial nerves were normal. Muscle strength revealed 0/5 on the Medical Research Council (MRC) scale in the four extremities. On this basis, tests of cerebellar function, coordination and balance were unable to perform. The perception of pinprick, proprioception and vibration sensations were all normal symmetrically. Deep tendon reflexes were 1+ in upper limbs and 2+ in lower limbs bilaterally, with Babinski’s sign, Chaddock’s sign and Oppenheim’s sign being positive on both sides. His National Institutes of Health Stroke Scale (NIHSS) score was 16/42.

The initial brain MRI was performed 10 h after the onset of the symptoms. The consecutive horizontal sections were noted on diffusion-weighted MRI at 3.0T, a defined hyperintensive linear signal at right anterior-medial territory with a dot-like signal on the other side, which disclosed an atypical “heart-shaped” hyperintensity in the medial medulla (Figure 1a and b). In addition to the medulla oblongata, the infarcted areas also included pons and the right cerebellar hemisphere. Axial T2-weighted MRI image showed hyperintensive signal, while apparent diffusion coefficient (ADC) image (axial) showed hypointensity in the same region. Meanwhile, the signals remained normal on fluid-attenuated inversion recovery (FLAIR).

Figure 1 
               (Axial DWI imaging): (a and b; arrow) bilateral medial medullary infarction involves the ventral, middle parts of the medulla oblongata, which were compatible with atypical “heart appearance.” (b and c) The right cerebellar hemisphere and (d) pons also showed high-intensity lesions.
Figure 1

(Axial DWI imaging): (a and b; arrow) bilateral medial medullary infarction involves the ventral, middle parts of the medulla oblongata, which were compatible with atypical “heart appearance.” (b and c) The right cerebellar hemisphere and (d) pons also showed high-intensity lesions.

Brain magnetic resonance angiography (MRA) showed atherosclerosis of the bilateral internal carotid artery (ICA) throughout the entire length. The outlines of the vertebral-basilar system (VBS) were irregular and vague, with its lumen diameter <2 mm. Both the posterior cerebral arteries (PCA) were originated from a posterior communicating artery (PCoA) separately, which were considered as a fetal-type posterior cerebral artery (FTP) variation (Figure 2a and b). Meanwhile, the anterior spinal artery (ASA) was not visualized. There is no apparent dissection of the vertebral arteries (VA). The option of digital subtraction angiography (DSA) and endovascular approach was offered to his relatives, but his wife refused both.

Figure 2 
               (TOF-MRA imaging): the lateral projection of an MRA image shows the hypoplastic BAS. (a and b) The posterior communicating arteries supply the territory of all branches of the PCAs, which were considered as fetal-type. (b) Caudocranial projection image shows that both PCAs were divided from ICA separately.
Figure 2

(TOF-MRA imaging): the lateral projection of an MRA image shows the hypoplastic BAS. (a and b) The posterior communicating arteries supply the territory of all branches of the PCAs, which were considered as fetal-type. (b) Caudocranial projection image shows that both PCAs were divided from ICA separately.

Complete blood counts showed no abnormality. Biochemistry showed elevated levels of fasting blood glucose (FBG, 9.73 mmol/L) and HbA1c (8.5%). Postprandial blood glucose at 2 h fluctuated between 8.17 and 11.32 mmol/L, so he was diagnosed with type 2 diabetes finally and received insulin therapy. Blood lipid analysis showed elevated levels of serum low-density lipoprotein (LDL, 4.84 mmol/L), triglyceride (TG, 1.76 mmol/L) and total cholesterol (TC, 6.81 mmol/L). The plasma tHcy concentration (14.1 μmol/L) was slightly increased. Qualitative urinalysis showed proteinuria (1+) and glucosuria (3+). In addition to normal blood urea nitrogen (BNU, 7.36 mmol/L) and serum creatinine (SCr, 80 μmol/L), the following investigations were normal or negative: liver function tests, creatine kinase (CK), CK-MB isoenzyme, troponin I, B-type natriuretic peptide (BNP), thyroid function tests, vitamin B12 and folate levels. Hepatitis B-surface antibodies (Anti-HBs) and hepatitis B-core antibody (Anti-HBc) were positive, but serology testing including hepatitis B-surface antigen (HBsAg), hepatitis C, HIV and syphilis were all negative. Transthoracic echocardiogram, 24 h-Holter monitoring and routine electrocardiogram were normal.

Based on these clinic-radiological findings, the patient was diagnosed with bilateral medial medullary infarction (BMMI). Although the early medicinal treatment and rehabilitation were performed, signs of bulbar palsy and tetraplegia still remained. The patient had a modified Rankin Scale (mRS) score of 5/6. He was transferred to another hospital for long-term care after 2 weeks.

  1. Ethics statement: This is a description of a clinical case with a brief literature review. There was no formal research ethics approval required or no experimental intervention into routine care. Fully informed consent from the patient’s family was obtained.

3 Discussion

3.1 BMMI

BMMI is a rare subtype of all ischemic strokes, which usually presents with hypoglossal palsy, quadriplegia, loss of deep sensation and bulbar dysfunction with or without respiratory failure. Pathognomonic MRI findings of BMMI reveal a bilateral infarction at levels of the medial medulla, which is well known as the “heart appearance” [2,5,6,7]. As for our patient, it was the linear and dot-like DWI lesions of both sides of the medulla on two consecutive transverse sections altogether that formed the imagiological presentation, which was not as typical as the published literature.

The blood supply of the anterior-medial territory of the medulla oblongata consists of two major parts: the superior one-third is known as the paramedian branches of VA, and the inferior two-thirds revealed the ASA. On account of the interindividual variation of these vastly complex networks and the spatial resolution limitation of MRA, it is commonly difficult to identify the occluded culprit vessel. There is consensus that BMMI commonly results from atherothrombotic involving the vertebral or ASA. In other words, the predominant presumed mechanisms were categorized into large artery atherosclerotic infarction according to the guidelines [8]. Extended thrombosis in the vertebra-basilar junction and the anatomic variability of paramedian perforating from vertebral or ASA; alternatively, one paramedian artery supplies both pyramids, maybe the immediate mechanism of the simultaneous bilateral infraction. This might explain BMMI caused by unilateral VA lesions reported in the literature [9,10,11]. In the largest series of 86 patients with MRI-identified unilateral MMI, Kim and Han [12] reported that large-artery atherosclerosis (62%) is the commonest cause. Pongmoragot et al. [13] also revealed large-artery atherosclerosis involving the VA (38.5%) and basilar artery (BA, 19.2%) accounted for the majority of the vascular pathology in a series of 38 patients with restricted inclusion criteria of BMMI.

It is undeniable that small penetrating artery disease represents another stroke mechanism of atheromatous branch occlusion as well, which could not be commonly demonstrated by MRA or DSA [14]. Pongmoragot et al. also found that more than one-third (38.5%) of the BMMI patients had no abnormal vascular findings. Furthermore, cardiac embolism, dissection of VA [15], even Takayasu arteritis [16] and Fabry disease [17] could be the mechanism of BMMI. To mention our case, the brain MRA showed large-artery atherosclerosis throughout the entire VBS, combined with barely visualized VA and ASA. Therefore, the fetal-type variant of PCA that was supplied by the anterior circulation from the ICA, rather than from the posterior circulation, played an essential compensatory role. Unfortunately, contrast-enhanced supraaortic MRA or DSA is not available for our patient. The precise etiology underlying the stroke remains to be elucidated since current imaging findings are hard to differentiate between the vascular lesion and hypoplasia/aplasia of VA and BA.

3.2 Bilateral facial paralysis of the central type

Central facial paralysis is extremely rare in medullary lesions and it is rarer still to bilateral paralysis in view of anatomic reasons. Literarily, MMI has been classically described as Déjerine syndrome, a triad of contralateral hemiparesis, proprioceptive impairment and ipsilateral hypoglossal palsy. However, on reviewing the literature, we found that central facial paralysis, not seen in the classic description, is found in a certain proportion(18–30%) of patients with MMI [12,18]. Bilateral central facial palsy, which has been reported as well [19,20], accounts for less than 16.2% of patients with BMMI [13].

It is well known that the anatomy of the human facial nucleus and peripheral facial nerves have been established. However, the confirmative course of the corticobulbar fibers that connect the motor cortex with the facial nucleus still remains uncertain. The facial corticobulbar tract fibers that arise from the motor cortex provide strongly unilateral innervation to the contralateral lower facial nucleus and bilateral innervation to the upper facial nucleus. Classic symptom localization has postulated that brainstem lesions rostral to the upper mid-pons result in contralateral facial paresis of central type. However, the absence of contralateral upper motor neuron facial palsy due to unifocal ischemic lesions at the medial medulla has been confirmed in the literature [21,22,23]. Transcranial magnetic stimulation combined with lesion topography analysis by MRI was used by Urban [23] to confirm these loop-shaped cortico-facial projections, which reveals facial paresis can occur ipsilateral to the lesion side at levels of upper medulla either. Based on the above-mentioned findings, it has been hypothesized that some of the facial corticobulbar fibers descend to the level of the upper-middle medulla ventromedially, making a loop before they decussate and then ascend to the dorsolateral medulla to supply the contralateral facial nucleus. On the other hand, lateral medullary infarction relatively often results in facial weakness on the side of the lesion [21,22,23]. It has also been postulated that facial weakness on the side of the lesion results from corticobulbar fibers being interrupted while they ascend contralaterally after decussating. Although this aberrant bundle was already described by Currier et al. [24] in the 1960s, conclusive pathological evidence has not been found yet. Interestingly, bilateral central facial paralysis occurs in our patient and suggests that this aberrant bundle, within both sides of the brainstem, does exist.

4 Conclusion

BMMI is an unusual stroke type, which is usually related to large arteries or branch disease of posterior circulation and is commonly associated with severe morbidity and mortality. As a result of anatomic variations of corticobulbar fibers in the brainstem, the central type of facial paralysis led by medullary infarction should not be ignored. For an early diagnosis, it is essential to bear in mind the characteristic findings obtained by diffusion-weighted MRI.


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Acknowledgements

The authors thank the participant, whose help and participation made this work possible. The authors also thank all doctors, faculties and research associates from the Department of Neurology, Third Central Hospital of Tianjin, for their expert technical assistance.

  1. Funding information: This work was supported by the Tianjin Science and Technology Commission for the Tianjin Science and technology major special projects, major scientific and technological projects of major disease prevention and control (19ZXDBSY00100); and the National Natural Science Foundation incubation project of Tianjin Third Central Hospital and Tianjin Key Laboratory of in vitro life support for severe diseases (2019YNR5).

  2. Author contributions: Ruizhi Zheng, Xianzhu Zeng, Ting Zhang, Zhao Jin and Jing Zhang were involved in the workup of the patient, conducted the patients’ investigations and provided clinical care. Ruizhi Zheng drafted the initial manuscript, reviewed and revised the manuscript, and approved the final manuscript as submitted. Jing Zhang took part in the acquisition and interpretation of data, and helped review and revise the manuscript. Jing Zhang planned the case report, gave final approval of the version to be published, and agree to be accountable for all aspects of the work.

  3. Conflict of interest: The authors declare that they have no competing interests.

  4. Data availability statement: The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Received: 2020-09-19
Revised: 2021-09-25
Accepted: 2021-09-30
Published Online: 2022-01-03

© 2022 Ruizhi Zheng et al., published by De Gruyter

This work is licensed under the Creative Commons Attribution 4.0 International License.

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  110. Relationship between the height of fibular head and the incidence and severity of knee osteoarthritis
  111. lncRNA WT1-AS attenuates hypoxia/ischemia-induced neuronal injury during cerebral ischemic stroke via miR-186-5p/XIAP axis
  112. Correlation of cardiac troponin T and APACHE III score with all-cause in-hospital mortality in critically ill patients with acute pulmonary embolism
  113. LncRNA LINC01857 reduces metastasis and angiogenesis in breast cancer cells via regulating miR-2052/CENPQ axis
  114. Endothelial cell-specific molecule 1 (ESM1) promoted by transcription factor SPI1 acts as an oncogene to modulate the malignant phenotype of endometrial cancer
  115. SELENBP1 inhibits progression of colorectal cancer by suppressing epithelial–mesenchymal transition
  116. Visfatin is negatively associated with coronary artery lesions in subjects with impaired fasting glucose
  117. Treatment and outcomes of mechanical complications of acute myocardial infarction during the Covid-19 era: A comparison with the pre-Covid-19 period. A systematic review and meta-analysis
  118. Neonatal stroke surveillance study protocol in the United Kingdom and Republic of Ireland
  119. Oncogenic role of TWF2 in human tumors: A pan-cancer analysis
  120. Mean corpuscular hemoglobin predicts the length of hospital stay independent of severity classification in patients with acute pancreatitis
  121. Association of gallstone and polymorphisms of UGT1A1*27 and UGT1A1*28 in patients with hepatitis B virus-related liver failure
  122. TGF-β1 upregulates Sar1a expression and induces procollagen-I secretion in hypertrophic scarring fibroblasts
  123. Antisense lncRNA PCNA-AS1 promotes esophageal squamous cell carcinoma progression through the miR-2467-3p/PCNA axis
  124. NK-cell dysfunction of acute myeloid leukemia in relation to the renin–angiotensin system and neurotransmitter genes
  125. The effect of dilution with glucose and prolonged injection time on dexamethasone-induced perineal irritation – A randomized controlled trial
  126. miR-146-5p restrains calcification of vascular smooth muscle cells by suppressing TRAF6
  127. Role of lncRNA MIAT/miR-361-3p/CCAR2 in prostate cancer cells
  128. lncRNA NORAD promotes lung cancer progression by competitively binding to miR-28-3p with E2F2
  129. Noninvasive diagnosis of AIH/PBC overlap syndrome based on prediction models
  130. lncRNA FAM230B is highly expressed in colorectal cancer and suppresses the maturation of miR-1182 to increase cell proliferation
  131. circ-LIMK1 regulates cisplatin resistance in lung adenocarcinoma by targeting miR-512-5p/HMGA1 axis
  132. LncRNA SNHG3 promoted cell proliferation, migration, and metastasis of esophageal squamous cell carcinoma via regulating miR-151a-3p/PFN2 axis
  133. Risk perception and affective state on work exhaustion in obstetrics during the COVID-19 pandemic
  134. lncRNA-AC130710/miR-129-5p/mGluR1 axis promote migration and invasion by activating PKCα-MAPK signal pathway in melanoma
  135. SNRPB promotes cell cycle progression in thyroid carcinoma via inhibiting p53
  136. Xylooligosaccharides and aerobic training regulate metabolism and behavior in rats with streptozotocin-induced type 1 diabetes
  137. Serpin family A member 1 is an oncogene in glioma and its translation is enhanced by NAD(P)H quinone dehydrogenase 1 through RNA-binding activity
  138. Silencing of CPSF7 inhibits the proliferation, migration, and invasion of lung adenocarcinoma cells by blocking the AKT/mTOR signaling pathway
  139. Ultrasound-guided lumbar plexus block versus transversus abdominis plane block for analgesia in children with hip dislocation: A double-blind, randomized trial
  140. Relationship of plasma MBP and 8-oxo-dG with brain damage in preterm
  141. Identification of a novel necroptosis-associated miRNA signature for predicting the prognosis in head and neck squamous cell carcinoma
  142. Delayed femoral vein ligation reduces operative time and blood loss during hip disarticulation in patients with extremity tumors
  143. The expression of ASAP3 and NOTCH3 and the clinicopathological characteristics of adult glioma patients
  144. Longitudinal analysis of factors related to Helicobacter pylori infection in Chinese adults
  145. HOXA10 enhances cell proliferation and suppresses apoptosis in esophageal cancer via activating p38/ERK signaling pathway
  146. Meta-analysis of early-life antibiotic use and allergic rhinitis
  147. Marital status and its correlation with age, race, and gender in prognosis of tonsil squamous cell carcinomas
  148. HPV16 E6E7 up-regulates KIF2A expression by activating JNK/c-Jun signal, is beneficial to migration and invasion of cervical cancer cells
  149. Amino acid profiles in the tissue and serum of patients with liver cancer
  150. Pain in critically ill COVID-19 patients: An Italian retrospective study
  151. Immunohistochemical distribution of Bcl-2 and p53 apoptotic markers in acetamiprid-induced nephrotoxicity
  152. Estradiol pretreatment in GnRH antagonist protocol for IVF/ICSI treatment
  153. Long non-coding RNAs LINC00689 inhibits the apoptosis of human nucleus pulposus cells via miR-3127-5p/ATG7 axis-mediated autophagy
  154. The relationship between oxygen therapy, drug therapy, and COVID-19 mortality
  155. Monitoring hypertensive disorders in pregnancy to prevent preeclampsia in pregnant women of advanced maternal age: Trial mimicking with retrospective data
  156. SETD1A promotes the proliferation and glycolysis of nasopharyngeal carcinoma cells by activating the PI3K/Akt pathway
  157. The role of Shunaoxin pills in the treatment of chronic cerebral hypoperfusion and its main pharmacodynamic components
  158. TET3 governs malignant behaviors and unfavorable prognosis of esophageal squamous cell carcinoma by activating the PI3K/AKT/GSK3β/β-catenin pathway
  159. Associations between morphokinetic parameters of temporary-arrest embryos and the clinical prognosis in FET cycles
  160. Long noncoding RNA WT1-AS regulates trophoblast proliferation, migration, and invasion via the microRNA-186-5p/CADM2 axis
  161. The incidence of bronchiectasis in chronic obstructive pulmonary disease
  162. Integrated bioinformatics analysis shows integrin alpha 3 is a prognostic biomarker for pancreatic cancer
  163. Inhibition of miR-21 improves pulmonary vascular responses in bronchopulmonary dysplasia by targeting the DDAH1/ADMA/NO pathway
  164. Comparison of hospitalized patients with severe pneumonia caused by COVID-19 and influenza A (H7N9 and H1N1): A retrospective study from a designated hospital
  165. lncRNA ZFAS1 promotes intervertebral disc degeneration by upregulating AAK1
  166. Pathological characteristics of liver injury induced by N,N-dimethylformamide: From humans to animal models
  167. lncRNA ELFN1-AS1 enhances the progression of colon cancer by targeting miR-4270 to upregulate AURKB
  168. DARS-AS1 modulates cell proliferation and migration of gastric cancer cells by regulating miR-330-3p/NAT10 axis
  169. Dezocine inhibits cell proliferation, migration, and invasion by targeting CRABP2 in ovarian cancer
  170. MGST1 alleviates the oxidative stress of trophoblast cells induced by hypoxia/reoxygenation and promotes cell proliferation, migration, and invasion by activating the PI3K/AKT/mTOR pathway
  171. Bifidobacterium lactis Probio-M8 ameliorated the symptoms of type 2 diabetes mellitus mice by changing ileum FXR-CYP7A1
  172. circRNA DENND1B inhibits tumorigenicity of clear cell renal cell carcinoma via miR-122-5p/TIMP2 axis
  173. EphA3 targeted by miR-3666 contributes to melanoma malignancy via activating ERK1/2 and p38 MAPK pathways
  174. Pacemakers and methylprednisolone pulse therapy in immune-related myocarditis concomitant with complete heart block
  175. miRNA-130a-3p targets sphingosine-1-phosphate receptor 1 to activate the microglial and astrocytes and to promote neural injury under the high glucose condition
  176. Review Articles
  177. Current management of cancer pain in Italy: Expert opinion paper
  178. Hearing loss and brain disorders: A review of multiple pathologies
  179. The rationale for using low-molecular weight heparin in the therapy of symptomatic COVID-19 patients
  180. Amyotrophic lateral sclerosis and delayed onset muscle soreness in light of the impaired blink and stretch reflexes – watch out for Piezo2
  181. Interleukin-35 in autoimmune dermatoses: Current concepts
  182. Recent discoveries in microbiota dysbiosis, cholangiocytic factors, and models for studying the pathogenesis of primary sclerosing cholangitis
  183. Advantages of ketamine in pediatric anesthesia
  184. Congenital adrenal hyperplasia. Role of dentist in early diagnosis
  185. Migraine management: Non-pharmacological points for patients and health care professionals
  186. Atherogenic index of plasma and coronary artery disease: A systematic review
  187. Physiological and modulatory role of thioredoxins in the cellular function
  188. Case Reports
  189. Intrauterine Bakri balloon tamponade plus cervical cerclage for the prevention and treatment of postpartum haemorrhage in late pregnancy complicated with acute aortic dissection: Case series
  190. A case of successful pembrolizumab monotherapy in a patient with advanced lung adenocarcinoma: Use of multiple biomarkers in combination for clinical practice
  191. Unusual neurological manifestations of bilateral medial medullary infarction: A case report
  192. Atypical symptoms of malignant hyperthermia: A rare causative mutation in the RYR1 gene
  193. A case report of dermatomyositis with the missed diagnosis of non-small cell lung cancer and concurrence of pulmonary tuberculosis
  194. A rare case of endometrial polyp complicated with uterine inversion: A case report and clinical management
  195. Spontaneous rupturing of splenic artery aneurysm: Another reason for fatal syncope and shock (Case report and literature review)
  196. Fungal infection mimicking COVID-19 infection – A case report
  197. Concurrent aspergillosis and cystic pulmonary metastases in a patient with tongue squamous cell carcinoma
  198. Paraganglioma-induced inverted takotsubo-like cardiomyopathy leading to cardiogenic shock successfully treated with extracorporeal membrane oxygenation
  199. Lineage switch from lymphoma to myeloid neoplasms: First case series from a single institution
  200. Trismus during tracheal extubation as a complication of general anaesthesia – A case report
  201. Simultaneous treatment of a pubovesical fistula and lymph node metastasis secondary to multimodal treatment for prostate cancer: Case report and review of the literature
  202. Two case reports of skin vasculitis following the COVID-19 immunization
  203. Ureteroiliac fistula after oncological surgery: Case report and review of the literature
  204. Synchronous triple primary malignant tumours in the bladder, prostate, and lung harbouring TP53 and MEK1 mutations accompanied with severe cardiovascular diseases: A case report
  205. Huge mucinous cystic neoplasms with adhesion to the left colon: A case report and literature review
  206. Commentary
  207. Commentary on “Clinicopathological features of programmed cell death-ligand 1 expression in patients with oral squamous cell carcinoma”
  208. Rapid Communication
  209. COVID-19 fear, post-traumatic stress, growth, and the role of resilience
  210. Erratum
  211. Erratum to “Tollip promotes hepatocellular carcinoma progression via PI3K/AKT pathway”
  212. Erratum to “Effect of femoral head necrosis cystic area on femoral head collapse and stress distribution in femoral head: A clinical and finite element study”
  213. Erratum to “lncRNA NORAD promotes lung cancer progression by competitively binding to miR-28-3p with E2F2”
  214. Retraction
  215. Expression and role of ABIN1 in sepsis: In vitro and in vivo studies
  216. Retraction to “miR-519d downregulates LEP expression to inhibit preeclampsia development”
  217. Special Issue Computational Intelligence Methodologies Meets Recurrent Cancers - Part II
  218. Usefulness of close surveillance for rectal cancer patients after neoadjuvant chemoradiotherapy
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