Disseminated nocardiosis caused by Nocardia abscessus in a dog.

A 4-year-old female spayed Bichon Frise dog that had been receiving cyclosporine A per os 3 times per week for 2 months to control allergic dermatitis developed lethargy, anorexia, fever, and multiple firm subcutaneous masses. Pyogranulomatous inflammation with branching nonseptate filamentous organisms approximately 2 μm in diameter, presumptively fungal organisms, was diagnosed by cytologic evaluation of fine-needle aspirates from several masses. A partially acid-fast actinomycete was cultured from 2 of the masses.

Subcutaneous Mycoleptodiscus indicus infection in an immunosuppressed dog.

An 8-year-old dog presented with several dermal excoriations. Lesion cytology revealed pyogranulomatous inflammation with branching, septate hyphae. A mold identified as Mycoleptodiscus indicus by morphology and sequencing was cultured from fine-needle aspirates.