Scleromyxedema-like syndrome with systemic involvement in a cat

Veterinary Pathology
T MüntenerM Welle

Abstract

Scleromyxedema--the generalized form of lichen myxedematosus, a primary mucinosis--is a rare disease in human patients. It is characterized by dermal mucin deposits, increased numbers of fibroblasts, and variable fibrosis in the absence of thyroid disease. It is accompanied in 80% of cases by a monoclonal gammopathy. To date, scleromyxedema with systemic involvement has not been documented in domestic animals. This is the first report of a scleromyxedema-like syndrome in a cat, which had a substantial deposition of mucin in the dermis of the head and paws with a mild gammaglobulinemia of 2.25 g/dl (reference range, 1.39-2.22 g/dl). At necropsy, multiple nodules of connective tissue intermingled with mucin deposits were conspicuous on the surface of thoracic and abdominal organs. Such severe systemic accumulations of mucin have not been reported in human or veterinary medicine.

References

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Citations

Aug 7, 2012·Best Practice & Research. Clinical Endocrinology & Metabolism·Vahab Fatourechi
Apr 26, 2017·Veterinary Dermatology·Aurore F LapraisKeith E Linder

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Methods Mentioned

BETA
scrapings
biopsy
electrophoresis

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