Fibromyxoma of the iliac wing

Abstract

Myxoma/fibromyxoma of extragnathic bone is a rare, benign tumor. We report the case of a 19-year-old man with a myxoma/fibromyxoma of the pelvic bone, who presented with abdominal pain in the right lower quadrant. Radiographs demonstrated a tumor with central scattered calcifications and ossification in the left ilium. CT scans disclosed a solitary ellipsoid tumor with sclerotic borders and no evidence of cortical disruption. MRI showed homogeneous signal enhancement of the bone marrow with slight thinning of the medial iliac cortex. Final diagnosis by radiological characteristics was not conclusive and histopathological examination suggested the diagnosis of a myxoma/fibromyxoma.