A 7-year-old cat was presented initially with multiple draining sinuses on the metatarsal region of its right hindlimb. Another lesion had appeared at the same time on the fifth proximal interphalangeal joint of the left forelimb. Histopathological examination of a biopsy from the right hindlimb lesion revealed chronic pyogranulomatous inflammation associated with yeast-like bodies and septate mycelia; a fungus was cultured on conventional media but not identified further. Culture of a swab collected from the left forelimb lesion demonstrated a pigmented fungus, also not characterised further. Although there was initially a favourable response to ketoconazole (Nizoral, Janssen-Cilag Pty. Ltd) and beta-lactam therapy, the infection in the hind limb relapsed subsequently, and Fusarium chlamydosporum was cultured from deep biopsy specimens. Clinical improvement followed debridement and itraconazole (Sporanox, Janssen-Cilag Pty. Ltd; 100 mg orally once daily), however amputation of the limb represented the best chance for a cure. The cat made an uncomplicated recovery following surgery and remained well for five months until the lesion on the left forelimb recurred. Amputation of the distal fourth digit was then performed, and the resected tissue submitted for culture. The dematiaceous fungus Microsphaeropsis arundinis was subsequently cultured. The cat remained well for several months, until a further F. chlamydosporum infection developed on the body wall. This was excised 7 months ago, and no lesions have recurred in this area. Importantly, this is the first reported case of M. arundinis infection in a mammalian host.

Interactive software has been developed on CD-ROM to facilitate learning of problem formulation, diagnostic methodology, and therapeutic options in dog and cat behavior problems. Students working in small groups are presented with a signalment, a case history, and brief description of the problem behavior as perceived by the client. Students then navigate through the case history by asking the client questions from an icon-driven question pad. Animated video responses to the questions are provided. Students are then required to rate the significance of the questions and answers with respect to the development of the unwelcome behavior. Links to online self-assessments and to resource materials about causation and treatment options are provided to assist students in their decision-making process. The activity concludes with a software-generated e-mail submission that includes the recorded history, diagnosis, and recommended treatment for assessment purposes.

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