1Junior Resident, Department of Radiology, Sree Balaji Medical College and Hospital, Chennai, Tamilnadu, India
Email: agrawalrohan97115@gmail.com
2Associate Professor, Department of Radiology, Sree Balaji Medical College and Hospital, Chennai, Tamilnadu, India
Email: ashgilli@gmail.com
3HOD, Department of Radiology, Sree Balaji Medical College and Hospital, Chennai, Tamilnadu, India
Email: dr.gmurugan@yahoo.com
4Senior Resident, Department of Radiology, Sree Balaji Medical College and Hospital, Chennai, Tamilnadu, India
Email: vishnuprasanth030@gmail.com
5Junior Resident, Department of Radiology, DVVPF Medical College, India
Email: bangadshraddha@gmail.com
Corresponding Author: Dr A Ashwin Kumar
Associate Professor, Department of Radiology
Sree Balaji Medical College and Hospital, Chennai, Tamilnadu, India
Email: ashgilli@gmail.com
Osteochondroma, though typically a tumor of younger individuals, should not be excluded from the differential diagnosis of knee pain in elderly patients. Symptomatic lesions, even in uncommon locations such as the infrapatellar region, can be effectively managed with surgical excision, leading to significant improvement in function and quality of life. This case report presents an atypical occurrence of an osteochondroma in a 65-year-old female, located in the infrapatellar region of the right knee. The patient experienced progressive knee pain and swelling, alongside mechanical symptoms such as locking and catching, which significantly impaired her mobility. Clinical examination revealed a firm, non-tender mass in the infrapatellar area, accompanied by mild joint effusion and restricted range of motion. Diagnostic imaging, including X-rays, MRI, and CT scans, confirmed an osteochondroma in the infrapatellar region, characterized by a pedunculated bony outgrowth with a 1.5 cm cartilaginous cap, with no signs suggesting malignant transformation. Due to the symptomatic nature and impact on the patient's quality of life, surgical excision was performed via a medial parapatellar approach, achieving complete removal of the lesion. The postoperative course was uneventful, with marked improvement in symptoms and restored knee function. This case highlights the importance of including osteochondroma in the differential diagnosis for knee pain in elderly patients and demonstrates the effectiveness of surgical intervention in managing symptomatic lesions in uncommon anatomical locations.
Keywords: Osteochondroma, elderly, infrapatellar, extrasynovial, knee, surgical excision.
How to cite this article: Agrawal RM, Kumar AA, Murugan G, Prasanth V, Bangad S. A Case Report of Giant Extrasynovial Osteochondroma of the Knee. Int J Drug Deliv Technol. 2026;16(7s): 758-763; DOI: 10.25258/ijddt.16.7s.81
Source of support: None
Conflict of interest: None