Cryptococcal antigen titres are negative. Species of opportunist fungi including Aspergillus, Alternaria, Penicillium, have been isolated. Opportunistic subcutaneous fungal infectionsĪ syndrome of ulcerated poorly healing nodules in the "fight and bite" sites mimicking cryptococcosis with or without nasal cavity involvement, is now recognised. However, prognosis for cure is poor and recurrence is probable.
Surgical removal is recommended in combination with itraconazole (7-10mg/kg SID) for 4-6 weeks. Definitive diagnosis involves recognition of the breed predisposition, histopathology with PAS/silver and fungal culture from a biopsy sample. Concurrent FeLV /FIV status requires evaluation. Systemic signs are uncommon although lymphadenopathy may occur. The syndrome is usually associated with concurrent generalised cutaneous dermatophytosis and hairs from unaffected areas are often positive on Woods' lamp and culture. Multiple or solitary, firm, nodules with or without tracts draining seropurulent material with granules are present. Infection probably begins with follicular colonisation followed by deeper implantation from bites or self-trauma. Because of the strong breed predisposition, selective immunodeficiency to the organism may play a role.
canis caused by dermatophytes is reported almost exclusively in Persians. SUBCUTANEOUS AND DEEP FUNGAL INFECTIONSĭeep dermal and subcutaneous fungal infection with M. Greater global movement of animals, climate change and improved methods of detection have meant that more unusual fungal, bacterial and protozoal infections are being increasingly diagnosed world-wide.Ī. It is not uncommon in cats for percutaneous injury to introduce deep infections that progress to form poorly healing wounds, draining tracts, cutaneous nodules and /or ulceration.
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