A 6-year-old child with medulloblastoma develops bradycardia, respiratory irregularities, and sudden coma. Physical exam reveals nuchal rigidity and extensor posturing. MRI shows downward displacement of the cerebellar tonsils through the foramen magnum compressing the medulla. Which type of herniation is occurring?
Read DetailsA 5-year-old boy presents with colicky abdominal pain, bilious vomiting, and distension. Abdominal X-ray reveals air-fluid levels consistent with small bowel obstruction. At surgery, a fibrous band is found connecting the ileum to the umbilicus, with a blind-ending pouch along the antimesenteric border. Which embryologic structure failed to involute?
Read DetailsA 55-year-old man presents with ptosis, diplopia, and inability to move the right eye in most directions. He also has loss of corneal reflex and facial numbness in the forehead and upper eyelid. CT reveals a mass impinging on the superior orbital fissure. Which cranial nerves are affected, and which cranial fossa does this foramen belong to?
Read DetailsAcetaminophen 240 mg is ordered for a child weighing 18 kg every 4 hours PRN for fever. The recommended dose is 10–15 mg/kg/dose. Recommended minimum single dose for this child: [min] mg/dose Recommended maximum single dose for this child: [max] mg/dose Is the ordered dosage safe? [safe]
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