panniculitis in a cat from northern California
Case summary A 9-year-old male castrated domestic shorthair cat from northern California was evaluated for a 12-month history of dermal and subcutaneous dermatitis in the inguinal region. Histopathologic examination of a biopsy revealed severe, chronic, multifocal to coalescing pyogranulomatous derm...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2025-01-01
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| Series: | Journal of Feline Medicine and Surgery Open Reports |
| Online Access: | https://doi.org/10.1177/20551169241298058 |
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| _version_ | 1832594062440398848 |
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| author | Mary Ann Lee Dennis J Woerde Krystle L Reagan Tatiana G Wolf Jane E Sykes |
| author_facet | Mary Ann Lee Dennis J Woerde Krystle L Reagan Tatiana G Wolf Jane E Sykes |
| author_sort | Mary Ann Lee |
| collection | DOAJ |
| description | Case summary A 9-year-old male castrated domestic shorthair cat from northern California was evaluated for a 12-month history of dermal and subcutaneous dermatitis in the inguinal region. Histopathologic examination of a biopsy revealed severe, chronic, multifocal to coalescing pyogranulomatous dermatitis and panniculitis, accompanied by ulceration and central necrosis. Aerobic bacterial culture of lesions yielded mycobacterial growth. Empiric antimicrobial therapy was initiated with doxycycline and marbofloxacin pending culture and susceptibility. Culture of a biopsy followed by rpoB gene sequencing at a mycobacterial reference laboratory yielded Mycobacterium porcinum after 6 weeks. Ten months after initial antimicrobial administration, the lesions resolved. Relevance and novel information To date, in cats, M porcinum panniculitis has been reported from Ohio, Massachusetts and British Columbia in North America; two additional cases were reported from southeastern Australia. In humans, M porcinum infections have been reported from several states in the USA, predominantly in the Midwest and coastal south, but not from the west. This report extends the known spatial distribution of M porcinum to the western USA and strengthens its association with panniculitis in cats. It also demonstrates the need for prolonged incubation for diagnosis of some rapidly growing mycobacteria infections using culture. |
| format | Article |
| id | doaj-art-38984d424c864ae4b6e11c3f22335ae5 |
| institution | Kabale University |
| issn | 2055-1169 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Journal of Feline Medicine and Surgery Open Reports |
| spelling | doaj-art-38984d424c864ae4b6e11c3f22335ae52025-01-20T06:03:35ZengSAGE PublishingJournal of Feline Medicine and Surgery Open Reports2055-11692025-01-011110.1177/20551169241298058 panniculitis in a cat from northern CaliforniaMary Ann Lee0Dennis J Woerde1Krystle L Reagan2Tatiana G Wolf3Jane E Sykes4Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, CA, USAVeterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, CA, USADepartment of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, CA, USAVDx Veterinary Diagnostics, Davis, CA, USADepartment of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, CA, USACase summary A 9-year-old male castrated domestic shorthair cat from northern California was evaluated for a 12-month history of dermal and subcutaneous dermatitis in the inguinal region. Histopathologic examination of a biopsy revealed severe, chronic, multifocal to coalescing pyogranulomatous dermatitis and panniculitis, accompanied by ulceration and central necrosis. Aerobic bacterial culture of lesions yielded mycobacterial growth. Empiric antimicrobial therapy was initiated with doxycycline and marbofloxacin pending culture and susceptibility. Culture of a biopsy followed by rpoB gene sequencing at a mycobacterial reference laboratory yielded Mycobacterium porcinum after 6 weeks. Ten months after initial antimicrobial administration, the lesions resolved. Relevance and novel information To date, in cats, M porcinum panniculitis has been reported from Ohio, Massachusetts and British Columbia in North America; two additional cases were reported from southeastern Australia. In humans, M porcinum infections have been reported from several states in the USA, predominantly in the Midwest and coastal south, but not from the west. This report extends the known spatial distribution of M porcinum to the western USA and strengthens its association with panniculitis in cats. It also demonstrates the need for prolonged incubation for diagnosis of some rapidly growing mycobacteria infections using culture.https://doi.org/10.1177/20551169241298058 |
| spellingShingle | Mary Ann Lee Dennis J Woerde Krystle L Reagan Tatiana G Wolf Jane E Sykes panniculitis in a cat from northern California Journal of Feline Medicine and Surgery Open Reports |
| title | panniculitis in a cat from northern California |
| title_full | panniculitis in a cat from northern California |
| title_fullStr | panniculitis in a cat from northern California |
| title_full_unstemmed | panniculitis in a cat from northern California |
| title_short | panniculitis in a cat from northern California |
| title_sort | panniculitis in a cat from northern california |
| url | https://doi.org/10.1177/20551169241298058 |
| work_keys_str_mv | AT maryannlee panniculitisinacatfromnortherncalifornia AT dennisjwoerde panniculitisinacatfromnortherncalifornia AT krystlelreagan panniculitisinacatfromnortherncalifornia AT tatianagwolf panniculitisinacatfromnortherncalifornia AT janeesykes panniculitisinacatfromnortherncalifornia |