Unusual Distal Tibia BCOR Sarcoma: A Case Report and Review of Imaging Features

Abstract

Ewing’s sarcoma is a common pediatric sarcoma. There is a subset of tumors similar to Ewing’s sarcoma in several aspects, but negative for all known translocations. The BCOR sarcoma is one example. There are limited descriptions of the radiologic imaging findings. Previous reports describe the radiologic features as “aggressive” and “similar” to Ewing’s sarcoma. This implies a permeative lesion centered in the diaphysis. Our case was geographic with a well-defined border and sharp zone of transition. Keywords: Ewing’s sarcoma, BCOR sarcoma, Imaging