First Case Report of Successful Treatment of <i>Mycobacterium abscessus</i> Infection in a Cat in Thailand

A female domestic shorthair cat aged 2 years was referred with a 1-month history of subcutaneous nodules and multiple sites of draining tracts at the ventral abdomen. Initially, the cat was diagnosed with a fungal infection and treated with oral itraconazole, without improvement. Comprehensive diagn...

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Main Authors: Thapanee Chuenngam, Suttiwee Chermprapai
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Animals
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Online Access:https://www.mdpi.com/2076-2615/15/7/925
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author Thapanee Chuenngam
Suttiwee Chermprapai
author_facet Thapanee Chuenngam
Suttiwee Chermprapai
author_sort Thapanee Chuenngam
collection DOAJ
description A female domestic shorthair cat aged 2 years was referred with a 1-month history of subcutaneous nodules and multiple sites of draining tracts at the ventral abdomen. Initially, the cat was diagnosed with a fungal infection and treated with oral itraconazole, without improvement. Comprehensive diagnostics, including cytology, which indicated pyogranulomatous inflammation, fungal culture that was negative, and bacterial culture, confirmed the presence of <i>Mycobacterium abscessus</i>. This infection was treated with a combination of oral azithromycin and topical amikacin based on susceptibility testing; later, doxycycline and an immunostimulant supplemented were combined at day 36 of treatment due to mild improvement of the lesions. The cat showed gradual improvement, achieving complete resolution of the lesions after 14 weeks, with no relapse noted 24 weeks post-treatment. This case report demonstrates the diagnostic challenges and the necessity for tailored, multi-drug therapeutic approaches in managing mycobacterial infections in cats. The findings may guide future treatments and raise awareness of mycobacterial diseases in cats.
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spelling doaj-art-57a22eb59ffe4131973f0db6b41ed9492025-08-20T02:09:10ZengMDPI AGAnimals2076-26152025-03-0115792510.3390/ani15070925First Case Report of Successful Treatment of <i>Mycobacterium abscessus</i> Infection in a Cat in ThailandThapanee Chuenngam0Suttiwee Chermprapai1Dermatology Center, Kasetsart University Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, ThailandDepartment of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, ThailandA female domestic shorthair cat aged 2 years was referred with a 1-month history of subcutaneous nodules and multiple sites of draining tracts at the ventral abdomen. Initially, the cat was diagnosed with a fungal infection and treated with oral itraconazole, without improvement. Comprehensive diagnostics, including cytology, which indicated pyogranulomatous inflammation, fungal culture that was negative, and bacterial culture, confirmed the presence of <i>Mycobacterium abscessus</i>. This infection was treated with a combination of oral azithromycin and topical amikacin based on susceptibility testing; later, doxycycline and an immunostimulant supplemented were combined at day 36 of treatment due to mild improvement of the lesions. The cat showed gradual improvement, achieving complete resolution of the lesions after 14 weeks, with no relapse noted 24 weeks post-treatment. This case report demonstrates the diagnostic challenges and the necessity for tailored, multi-drug therapeutic approaches in managing mycobacterial infections in cats. The findings may guide future treatments and raise awareness of mycobacterial diseases in cats.https://www.mdpi.com/2076-2615/15/7/925catsMALDI-TOF MSmycobacterianon-tuberculous mycobacteriosis
spellingShingle Thapanee Chuenngam
Suttiwee Chermprapai
First Case Report of Successful Treatment of <i>Mycobacterium abscessus</i> Infection in a Cat in Thailand
Animals
cats
MALDI-TOF MS
mycobacteria
non-tuberculous mycobacteriosis
title First Case Report of Successful Treatment of <i>Mycobacterium abscessus</i> Infection in a Cat in Thailand
title_full First Case Report of Successful Treatment of <i>Mycobacterium abscessus</i> Infection in a Cat in Thailand
title_fullStr First Case Report of Successful Treatment of <i>Mycobacterium abscessus</i> Infection in a Cat in Thailand
title_full_unstemmed First Case Report of Successful Treatment of <i>Mycobacterium abscessus</i> Infection in a Cat in Thailand
title_short First Case Report of Successful Treatment of <i>Mycobacterium abscessus</i> Infection in a Cat in Thailand
title_sort first case report of successful treatment of i mycobacterium abscessus i infection in a cat in thailand
topic cats
MALDI-TOF MS
mycobacteria
non-tuberculous mycobacteriosis
url https://www.mdpi.com/2076-2615/15/7/925
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