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Case Reports in Orthopedics
Volume 2017 (2017), Article ID 8672816, 4 pages
https://doi.org/10.1155/2017/8672816
Case Report

A Subdermal Osteochondroma in a Young Girl

1Department of Orthopaedics and Rehabilitation, Vanderbilt University Medical Center, 4202 Doctors’ Office Tower, 2200 Children’s Way, Nashville, TN 37232-9565, USA
2Department of Pathology, Vanderbilt University Medical Center, 4202 Doctors’ Office Tower, 2200 Children’s Way, Nashville, TN 37232-9565, USA
3Department of Pediatrics, Vanderbilt University Medical Center, 4202 Doctors’ Office Tower, 2200 Children’s Way, Nashville, TN 37232-9565, USA
4Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, 4202 Doctors’ Office Tower, 2200 Children’s Way, Nashville, TN 37232-9565, USA
5Department of Pharmacology, Vanderbilt University Medical Center, 4202 Doctors’ Office Tower, 2200 Children’s Way, Nashville, TN 37232-9565, USA

Correspondence should be addressed to Jonathan G. Schoenecker; ude.tlibrednav@rekceneohcs.noj

Received 12 September 2016; Accepted 7 December 2016; Published 4 January 2017

Academic Editor: Elke R. Ahlmann

Copyright © 2017 Heather A. Cole et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Osteochondromas are common benign tumors of cartilage and bone. They are usually found as contiguous bone with a cartilage cap at the end of the growth plate of long bones. Similar to structure are extraskeletal osteochondromas. However, unlike typical osteochondromas, extraskeletal osteochondromas are noncontinuous with bone. To our knowledge, all reported extraskeletal osteochondromas have been contained within fascial compartments. Here we present the case of a 5-year-old female who had a slow growing mass of the anterior distal right thigh. Imaging studies revealed an ossified mass extending from dermal layer of the subcutaneous tissue with no connection to the underlying deep fascia. An excisional biopsy was performed and proved to be a subdermal extraskeletal osteochondroma.