Question
A 25 year old male preseted with swelling and pain in the knee joint.X ray shows the following features.What can be the most possible diagnosis?
| A. |
Giant Cell Tumor
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| B. |
Simple Bone Cyst
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| C. |
Aneurysmal Bone Cyst
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| D. |
Fibrous Dysplasia
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Show Answer
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Correct Answer � A
Explanation
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Ans:A. Giant Cell Tumor
* The given x ray shows signs of gaint cell tumor.
* A giant cell tumor of bone is a type of benign (noncancerous) tumor that grows at the ends of the body’s long bones.
* Most often, the tumors develop at the lower end of the femur (thighbone) or upper end of the tibia (shinbone), close to the knee joint.
* Giant cell tumors typically occur in young adults.
* Giant cell tumors occur almost exclusively in the end portion of the long bones (epiphysis), directly next to the joints.
* On x-ray, a giant cell tumor appears as a destructive (lytic) lesion next to a joint.
* A solitary, may be loculated, lytic lesion.
* Eccentric location, often subchondral .
* Expansion of the overlying cortex (expansile lesion).
* ‘Soap-bubble’ appearance – the tumour is homogeneously lytic with trabeculae of the remnants of bone traversing it, giving rise to a loculated appearance.
* No calcification within the tumour .
* None or minimal reactive sclerosis around the tumour.
* Cortex may be thinned out, or perforated at places.
* Tumour usually does not enter the adjacent joint.
