case_images: PMC11744623_01
case_images: Histopathology image showing a pyogranuloma centered around an adipocyte with intralesional filamentous bacteria (arrow) (hematoxylin and eosin stain, x 20 magnification)
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case_images: Five months later, histopathologic examination of a skin biopsy revealed severe, chronic, multifocal to coalescing pyogranulomatous dermatitis and panniculitis, accompanied by ulceration and central necrosis (Figure 1).
case_images: Inguinal region of a cat infected with Mycobacterium porcinum on initial examination at the referring hospital. Multifocal ulcerative cutaneous lesions are present
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case_images: Three lesions were subcutaneous, firm and moveable with an irregular texture, and two were flat, cutaneous, freely moveable plaque-like lesions with multifocal crusting (Figure 2).
case_images: (a) Ventral abdomen and inguinal region after 6 weeks of antimicrobial therapy. (b) Ventral abdomen and inguinal region after 16 weeks of antimicrobial therapy
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case_images: Based on clinical response, doxycycline and marbofloxacin were continued, and lesions resolved over 9 months (Figure 3).