Case Report
Diffuse cutaneous mastocytosis (pigmented maculopapular cutaneous mastocytosis) in a cat
Marcin Szczepanik*,
Piotr Wilkołek,
Anna Śmiech,
Iwona Taszkun

Mac Vet Rev 2020; 43 (1): i - iii


Received: 28 May 2019

Received in revised form: 19 September 2019

Accepted: 02 September 2019

Available Online First: 25 October 2019

Published on: 15 March 2020

Correspondence: Marcin Szczepanik,


Diffuse cutaneous mastocytosis was diagnosed in a 6-year-old, indoor, neutered female domestic European shorthair cat. Marked pruritus located mainly on the head and neck was noticed in the cat and in this area the animal had developed alopecia, crusts, and plaques. Histologically, monomorphic mast cells were found in the superficial dermis and around the hair follicles. Mast cells were well differentiated, with central nuclei and granular cytoplasm, with metachromatic granules which stained positively with Toluidine blue stain. The animal was successfully treated with oclacitinib at a dose of 1 mg/kg, twice a day per os.

Keywords: dermatology, mastocytosis, oclacitinib, cats


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© 2019 Szczepanik M. This is an open-access article published under the terms of the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Conflict of Interest Statement

The authors have declared that no competing interests exist.

Citation Information

Macedonian Veterinary Review. Volume 43, Issue 1, Pages i-iii, p-ISSN 1409-7621, e-ISSN 1857-7415, DOI: 10.2478/macvetrev-2019-0025, 2020