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Cutaneous Mycobacteriosis Caused by Mycobacterium kansasii in a Yellow-naped Amazon Parrot (Amazona auropalliata)

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JOURNAL OF AVIAN MEDICINE AND SURGERY
卷 35, 期 2, 页码 227-234

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ASSOC AVIAN VETERINARIANS
DOI: 10.1647/20-00036

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mycobacteriosis; Mycobacterium kansasii; acid fast; cutaneous; Fite-Faraco; avian; Amazon parrot; Amazona auropalliata

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This translation describes a case of Mycobacterium kansasii infection in a yellow-naped Amazon parrot, presenting as ulcerative lesions on the skin and the diagnostic and treatment procedures involved.
An approximately 25-year-old, female, yellow-naped Amazon parrot (Amazona auropalliata) was evaluated for a chronic, raised, ulcerative mass on the lateral aspect of the left thigh. Histopathology of an excisional biopsy revealed severe, chronic, multifocal-to-coalescing, ulcerated dermal and subcutaneous granulomas. No infectious organisms were observed on ZiehlNeelsen or Gomori methenamine silver stains. The parrot was treated with oral sulfamethoxazole-trimethoprim and meloxicam. When reexamined 2 weeks later, the biopsy site had healed. Surgical biopsies were resubmitted 14 months after the original presentation due to recurrence of similar ulcerative lesions on the right leg. Histopathology revealed a similar inflammatory pattern, and hematoxylin-eosin, Ziehl-Neelsen, and silver stains on the biopsy samples were all negative. A Fite-Faraco stain revealed rare acid-fast bacilli throughout the lesion. Tissue polymerase chain reaction test was negative for Mycobacterium avium and Mycobacterium genavense. Mycobacterial culture and subsequent genotyping revealed Mycobacterium kansasii. Mycobacterium kansasii is a significant cause of mycobacteriosis in humans and, therefore, should be considered a potential zoonotic organism. This report describes an unusual primary cutaneous presentation of avian mycobacteriosis.

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