Secondary metabolites, structure diagram: Trivial name – Butyrolactone III

Domestic crossbred cat with disseminated aspergillosis. Diff Quik stained squash preparation of material obtained from thoracotomy of a 3 year old domestic crossbred cat with invasive Aspergillus fumigatus infection. The cat had marked enlargement of

Domestic crossbred cat with disseminated aspergillosis. Diff Quik stained squash preparation of material obtained from thoracotomy of a 3 year old domestic crossbred cat with invasive Aspergillus fumigatus infection. The cat had marked enlargement of the hilar lymph nodes that resulted in a partial tracheal obstruction. This smear was made from portions of the hilar lymph node resected at thoracotomy. Magnification x 132.

English Pointer with nasal aspergillosis. Diff Quik stained cytological smear of material obtained from the frontal sinus of a 7 year old English Pointer with nasal aspergillosis. This infection was caused by Aspergillus fumigatus. Fungal hyphae are

English Pointer with nasal aspergillosis. Diff Quik stained cytological smear of material obtained from the frontal sinus of a 7 year old English Pointer with nasal aspergillosis. This infection was caused by Aspergillus fumigatus. Fungal hyphae are beautifully demonstrated by the Diff Quik stain. Magnification x 200.

Nasal aspergillosis in a Schnauzer. Histological section of fungal plaques removed surgically from the frontal sinus of a 5 year old Schnauzer with nasal aspergillosis. This infection was caused by Aspergillus fumigatus. H & E; x 200.

Nasal aspergillosis in a Schnauzer. Histological section of fungal plaques removed surgically from the frontal sinus of a 5 year old Schnauzer with nasal aspergillosis. This infection was caused by Aspergillus fumigatus. H & E; x 200.

Disseminated aspergillosis in a German Shepherd.

Disseminated aspergillosis in a German Shepherd. Masses of fungal hyphae in the renal pelvis of both kidneys in a young German Shepherd dog with disseminated Aspergillus terreus infection.

Nasal aspergillosis. KOH preparation of fungal plaques surgically removed from the frontal sinus of a Schnauzer with nasal aspergillosis due to Aspergillus fumigatus.

Nasal aspergillosis. KOH preparation of fungal plaques surgically removed from the frontal sinus of a Schnauzer with nasal aspergillosis due to Aspergillus fumigatus.

English Pointer with nasal aspergillosis. English Pointer with nasal aspergillosis treated by topical enilconazole injected through surgically inserted indwelling plastic tubes.

English Pointer with nasal aspergillosis. English Pointer with nasal aspergillosis treated by topical enilconazole injected through surgically inserted indwelling plastic tubes.

German Shepherd with disseminated aspergillosis.

German Shepherd with disseminated aspergillosis. Unilateral pyelonephritis in a German Shepherd dog with disseminated Aspergillus terreus infection.

Rottweiler treated with indwelling plastic tubes.

Rottweiler treated with indwelling plastic tubes. Photograph of a Rottweiler crossbred dog treated with indwelling plastic tubes placed surgically into the nasal cavity and frontal sinuses.

Rottweiler crossbred dog with nasal aspergillosis.

Rottweiler crossbred dog with nasal aspergillosis. A Rottweiler crossbred dog with nasal aspergillosis due to Aspergillus fumigatus infection. Note the loss of pigment below the nostril on the worst affected side – this finding is suggestive of a diagnosis of chronic nasal aspergillosis in the dog.

Disseminated aspergillosis in a German Shepherd.

Disseminated aspergillosis in a German Shepherd. Hyphae of Aspergillus terreus in the urine of a young German Shepherd dog with disseminated aspergillosis. White blood cells are present in addition to the fungal hyphae. Wet preparation of urine; magnification x 132.