Case report reveals successful surgical excision of a mature retroperitoneal teratoma in a child with trisomy 21, highlighting its inclusion in abdominal mass differentials.
Key Points
To report the clinical presentation, radiological diagnosis, and surgical management of a rare mature retroperitoneal teratoma in a pediatric patient with trisomy 21.
Evaluated a 6-year-old girl with trisomy 21 presenting with intermittent flank pain, vomiting, and an abdominal mass using contrast-enhanced CT and serum biomarkers (AFP and β-hCG).
Conducted complete en-bloc surgical resection with major vessel preservation, followed by histopathological examination and a one-year clinical follow-up.
Computed tomography demonstrated a 150 × 75 × 122 mm well-circumscribed retroperitoneal mass with fat, cysts, and calcifications compressing the inferior vena cava without vascular invasion, accompanied by normal AFP and β-hCG levels.
Histopathology confirmed a mature teratoma with negative surgical margins, resulting in an uneventful postoperative recovery and zero recurrence at the one-year follow-up.