Perivascular epithelioid cell tumor is a rare mesenchymal tumor with myomelanocytic differentiation. It mainly occurs in middle-aged females and can be found at any location. The differential diagnosis is broad but the immunohistochemical biomarkers establish the diagnosis. A 4-year-old girl was referred to a pediatric gastroenterology clinic due to recurrent umbilical pain and the workup revealed biliary lithi...
Malignant hepatic tumors are rare in children and hepatocellular carcinomas only represent 20% of cases. A previously healthy 10 year-old male was admitted for sudden abdominal pain. Ultrasound imaging showed an ileo-ileal intussusception with spontaneous resolution, but in the face of worsening pain, fever, and a palpable epigastric mass, abdominal magnetic resonance imaging was performed, showing a liver lesi...