Computer Tomography (CT)
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Computer Tomography (CT) Scan Case Study #11
混種狗 Mongrel
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Mongrel, Female, 9 years old
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Clinical History:
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Mass found in carpal region of left foreleg. Soft tissue sarcoma found on Left Hind Limb in previously.
Fine Needle Aspiration showed sarcoma-like cells. Recently swelling on lateral carpus of Left Fore Limb is found.
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Findings:
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Shoulders
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There is no evidence of degenerative joint disease in the shoulders. There is a focal (7.5mm), poorly defined hypoattenuating lesion in the lesser tubercle of the left humerus.
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Elbows
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There are osteophytes in the anconeal process and medial coronoid process of both elbows. The medial coronoid processes are sclerotic.
No evidence of aggressive bone lesions is noted.
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Left carpus
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There is a poorly defined soft tissue mass with a homogeneous contrast enhancement in the lateral aspect of the carpus (approximately 13 x 7.6 x 22mm, CrCd x LM x PxDs). There is no evidence of bone lysis. There is a mildly irregular new bone formation in proximolateral cortex of the 5th left metacarpal bone adjacent the mass.
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There are osteophytes in the accessory carpal bone of the left carpus.
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Right carpus
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There are multiple osteophytes in accessory carpal bone. An irregular bone fragment (7.9 x 3.3mm) is seen in the dorsal aspect of the bone.
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Conclusion:
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1. Soft tissue mass in the lateral aspect of the left carpus with a mild periosteal reaction in the 5th metacarpal bone but no evidence of bone lysis.
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2. Hypoattenuating lesion in the left humerus.
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3. Osteophytes in the right and left accessory carpal bone. This can be secondary to a previous hyperextension injury. The small mineral fragment in the right side can represent an avulsion fragment. Correlation with the orthopaedic exam is recommended.
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4. Bilateral degenerative joint disease in the elbows. This can be secondary to a mild medial coronoid disease.
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*** The above case is for reference only. If you have any questions concerning your pet's condition, please discuss with your veterinarian. ***
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Contrast enhancing thickening in the lateral aspect of the left carpus.
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Periosteal reaction adjacent to the mass.
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Hypoattenuating lesion in the proximal left humerus.
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