Case Of The Month | June 2024 | Digital Cytology: Possible Cryptococcosis in a 10-year-old Domestic Shorthair Cat
admin@pathologynews.com2024-06-03T12:12:59+00:00A 10-year-old domestic shorthair male cat presented with a recurrent nasal mass, which was initially excised surgically last year. The clinical pathology team at NationWide Laboratories performed a cytological examination of the mass using digital pathology images, revealing marked pyogranulomatous inflammation and suspicious yeast elements that were likely to be Cryptococcus. The presence of round to oval (11-12 um diameter) yeast structures with internal basophilic stippling and a thin clear external halo were observed both extracellularly and within macrophages. There were also frequent pseudohyphae observed in some areas. This looked consistent with a diagnosis of Cryptococcus infection. The digital images allowed for high-resolution visualisation of the fungal elements; however, further confirmation would require culture or PCR testing to definitively identify the species and determine the specific genotype involved.











