Almaalouli, Bsher

Background: Opalski syndrome is a rare variant of Wallenberg syndrome (lateral medullary syndrome) that demonstrates concomitant ipsilateral hemiplegia due to infarctions within the lateral medulla and the cervical spinal cord, which also extend to the post-pyramidal decussation to affect the corticospinal tract. Case presentation: A 56-year-old man initially presented with a unilateral headache with right cervical pain. Consequently, he developed symptoms that indicate Wallenberg syndrome: vertigo, dysphonia, dysarthria, right limb ataxia with a tendency to fall, and ptosis, in addition to ipsilateral hemiparesis. The diffusion-weighted imaging MRI (DWI MRI) performed initially demonstrated an acute infarct in the dorsolateral medulla. Accordingly, an axial T2-weighted MRI showed a hyperintense focal region in the same area, even as magnetic resonance angiography (MRA) revealed complete stenosis of the corresponding vertebral artery. Discussion: Opalski syndrome can result from different etiologies such as vascular occlusion or dissection. Although symptoms may vary, patients commonly present with sudden weakness, vertigo, and gait instability. Diagnosis often relies on MRI or DW-MRI. Treatment is tailored depending on individual factors and may involve medications and monitoring. Complications like respiratory failure can occur but are not directly linked to Opalski syndrome. Proper management includes addressing ischemic risk factors and ensuring appropriate nutrition. Conclusion: This case highlights the importance of including Opalski syndrome early in the differential diagnosis of patients with clinically suspected ipsilateral lateral medullary infarction and hyperacute ipsilateral hemiparesis.

Background: Congenital mesoblastic nephroma is the most common renal tumor in children under the age of 6 months, comprising 3–10% of all kidney tumors in children. It is a rare and mostly benign tumor. It divides into cellular, classic, and mixed subtypes. It is typically detected in the third trimester of pregnancy using ultrasonography and magnetic resonance imaging. The best treatment is surgically by completely removing the tumor. Case presentation: We reported a case of a one-day-old female who was born at 31 weeks gestation weighing 1670 g. Preterm labor was due to polyhydramnios, which was diagnosed predelivery. A large mass was detected in the left hypochondrium using computerized tomography, total nephrectomy was performed, and the histopathological examination of the specimen confirmed the diagnosis of congenital mesoblastic nephroma. Clinical discussion and conclusion: Early polyhydramnios could be the most significant sign of renal tumors in infants, especially congenital mesoblastic nephroma.