MCQ MAHE 2000 Orthopedics Answer 05

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The Correct Answer is A

 Single osteochondroma is one of the most common non biopsied bone tumors discovered in 2% of people who have extensive skeletal X-rays. Multiple OCEs are inherited as an autosomal dominant genetic disorder. They most commonly occur about the knee joint.

    Incidence - rare (multiple bones).

    Radiological findings - pedunculated bony protuberances that point away from the epiphyses of the affected bones. The stalk of the osteochondroma is always associated with a defect in the underlying cortex of the bone.

    Clinical features - Mechanical dysfunction, pain due to fracture of the stalk, very rarely chondrosarcomatous degeneration.

These lesions, whether single or multiple, are felt to arise from a herniation of the growth plate, laterally resulting in displacement of a group of actively proliferating cartilage cells, which ultimately results in a mushroom-shaped tumor.


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Category: MAHE 2000 MCQs

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