What Is Your Diagnosis?

Kraus, Kelly; Fettig, Arthur A.; Freer, Sean R.

doi:10.2460/javma.241.11.1429

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2024

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“…There was no history of external trauma, nor evidence of a Salter–Harris type V fracture on the imaging studies. Various other conditions can affect the physis, disrupting normal endochondral ossification, such as metaphyseal osteopathy 4 and physitis, 13 no features of which were present in this cat. Chondrodystrophy can also cause angular limb deformities in cats; however, this was not considered a differential diagnosis in this case due to the lack of disproportionate dwarfism, lack of generalised involvement, 14 imaging findings consistent with RCCs 1–6 and histological confirmation.…”

Section: Discussionmentioning

confidence: 71%

Bilateral ulnar retained cartilage cores causing thoracic angular limb deformities in a cat

Sumping,

Weston,

Crosby‐Durrani

et al. 2024

Vet Record Case Reports

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A 6‐month‐old, female, neutered, Bengal‐cross cat presented for bilateral thoracic angular limb deformity. Radiographs and computed tomography revealed well‐defined, flame‐shaped radiolucent and hypoattenuating defects within the medullary cavity of the distal ulnar metaphyses, surrounded by a thin rim of sclerosis. Surgical correction of initially the right angular limb deformity involved radial and ulnar ostectomies, and a bone biopsy of the distal ulnar metaphysis was submitted for histopathology. The morphological diagnosis was consistent with retained cartilage core, never previously reported in a cat.

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