Open AccessHoffa’s Osteochondroma - Para-articular Extrasynovial Infrapatellar Fat Pad Osteochondroma: A Case Report
Author(s) -
Sunil Panta,
Shrawan Kumar Thapa,
Krishna Prasad Paudel,
Manoj Kandel,
Bishwa Raj Adhikari
Publication year - 2021
Publication title -
journal of nepal medical association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.176
H-Index - 19
eISSN - 1815-672X
pISSN - 0028-2715
DOI - 10.31729/jnma.6625
Subject(s) - osteochondroma , medicine , infrapatellar fat pad , anatomy , ossification , knee pain , osteoarthritis , pathology , alternative medicine
Osteochondroma usually arises from the metaphyseal region of growing bones. The occurrence of extraskeletal osteochondroma is rare with very few case reports. Para-articular osteochondroma is a type of extraskeletal osteochondroma. It frequently occurs around the knee, usually at infrapatellar Hoffa’s fat pad. It is usually intracapsular but extrasynovial and arises from the capsule and connective tissues due to osteocartilaginous metaplasia. We present a case of 19-years male with anterior knee pain for 3 years, swelling, and deformity of the knee with flexion limitation for one year. Radiography revealed ovoid, corticated lesion free from adjoining bones. Mass interpreted as benign, so planned for excision. Well circumscribed nodule excised from the medial parapatellar approach. Histology revealed cartilaginous tissues surrounded by fibrous tissues with scattered enchondral ossification.Postoperatively and subsequent follow-up resulted in pain-free joint, complete recovery of range of motion with no clinicoradiological evidence of recurrence.