Case Report: Giant Extrasynovial Osteochondroma in the Infra-Patellar Fat Pad of Knee

Ahmed Hasaballah, Ahmed Ezzat, Haidy Mohammed Zakaria, Mai Mamdouh

Citation: Ahmed Hasaballah, Ahmed Ezzat, Haidy Mohammed Zakaria, Mai Mamdouh, "Case Report: Giant Extrasynovial Osteochondroma in the Infra-Patellar Fat Pad of Knee", Universal Library of Medical and Health Sciences, Volume 02, Issue 03.

Copyright: 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

Extraskeletal paraarticular osteochondromas are a rare benign intracapsular tumour. They are caused by osteocartilaginous metaplasia in the paraarticular soft tissue of the joint. Here we present a case of 38-year-old woman attended with a complaint of a enlarged lump on her left knee, along with insidious onset of pain and limited range of motion. Plain x-ray and MRI radiographs showed a partially calcified giant mass in the infra-patellar fat pad. The patient underwent removal of the mass. Histopathology confirmed the diagnosis of extraskeletal paraarticular osteochondroma. Surgical excision can effectively treat this condition with no recurrences. If not addressed, it can progress to patellar tendinopathy and functional impairments.


Keywords: Osteocartilaginous Metaplasia, Paraarticular Osteochondromas, Patellar Tendinopathy

Download doi https://doi.org/10.70315/uloap.ulmhs.2024.0203001