An Unusual Case of Patellar Osteochondroma in an Elderly Woman: A Rare Site and Age of Presentation

Introduction: Osteochondroma, a benign bone tumor commonly found in younger individuals, is seldom observed in older adults. 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. Clinical examination revealed a firm, non-tender mass in the infrapatellar area, accompanied by mild joint effusion and restricted range of motion. 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. Case Report: A 65-year-old female presented to the orthopedic outpatient department with a chief complaint of right knee pain and swelling that had progressively worsened over the last year. The pain was described as a dull ache, exacerbated by activity and partially relieved by rest. In addition, the patient experienced mechanical symptoms impacting her mobility and quality of life. Diagnostic imaging, including X-rays, magnetic resonance imaging, and computed tomography scans, confirmed an osteochondroma in the infrapatellar region, characterized by a bony outgrowth, with no signs suggesting malignant transformation. Due to the symptomatic nature and impact on the patient’s quality of life, surgical excision was performed achieving complete removal of the lesion. Conclusion: This case illustrates a rare presentation of infrapatellar osteochondroma in an elderly patient, highlighting that such lesions, though uncommon in older adults, should remain a differential consideration in cases of unexplained knee pain with mechanical symptoms. Timely diagnosis through appropriate imaging and surgical excision can lead to excellent symptomatic relief and functional recovery, even in atypical anatomical locations. Keywords: Osteochondroma, elderly, infrapatellar.