Pattern alopecia in a miniature pinscher dog

Kang, Jongil; Lee, Wanghui; Park, Jeongho; Oh, Taeho; Cho, Seongwhan; Park, Seongjun

doi:2011.51.4.315

Korean J Vet Res > Volume 51(4); 2011 > Article

Case report

Korean Journal of Veterinary Research 2011;51(4):315-318.
DOI: https://doi.org/10.14405/kjvr.2011.51.4.315 Published online December 1, 2011.

Pattern alopecia in a miniature pinscher dog

Jongil Kang¹, Wanghui Lee¹, Jeongho Park¹, Taeho Oh², Seongwhan Cho¹, Seongjun Park¹

¹College of Veterinary Medicine, Chungnam National University
²College of Veterinary Medicine, Kyungpook National University

미니어쳐 핀셔견에서 발생한 형태탈모증(pattern alopecia) 1례

강종일¹, 이왕희¹, 박정호¹, 오태호², 조성환¹, 박성준¹

¹충남대학교 수의과대학
²경북대학교 수의과대학

Abstract

A dog (5.6 kg, 4-year-old, castrated male, Miniature pinscher) with diffuse symmetric alopecia on the chest and excessive scales was referred to Veterinary Medical Teaching Hospital of Chungnam National University, Korea. On physical examination, diffuse alopecia on ventral aspect of the neck and caudomedial thighs, and severe scales were presented. Dermatologic tests of lesions revealed bacterial infections. Histopathologically, atrophy of hair bulb was observed in the severely alopecic lesion of caudomedial thighs. ACTH stimulation test was performed to differentiate the endocrine disorder related to generalized alopecia. The pre-ACTH serum testosterone and progesterone concentrations were above normal ranges and the post-ACTH serum testosterone concentration was high. The pre- and post-ACTH serum estradiol and cortisol concentrations were within normal ranges. Canine pattern alopecia was diagnosed based on history, physical examination, hormonal assay and dermatohistopathologic examination. After 3 months of melatonin administration, multifocal alopecia on the trunk was improved and general hair regrowth was identified.

Key Words: dog, melatonin, miniature pinscher, pattern alopecia