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This photo is from an aspirate of a pink, ‘warty’ dermal mass of an 8-yr-old, neutered male, Golden Retriever. The picture consists of a cluster of well-differentiated sebaceous epithelial cells that have moderate amounts of blue, vacuolated cytoplasm, round nuclei, and finely stippled chromatin. A few...

Aspirate from a vaginal mass of a 5-year-old, spayed female Golden Retriever that had been rescued from Turkey. The image consists of many red blood cells, a rare neutrophil, and several individual round cells with abundant light gray cytoplasm that commonly contain few to several...

Aspirate from a 1cm, circular, raised pink dermal mass on the pinna of a 3-year-old spayed female Bull terrier. The mass has been present for 1-2 weeks and has grown slightly. The image consists of few red blood cells, very few small lymphocytes and neutrophil,...

Aspirate from a kidney nodule of a 2-year- old spayed female domestic shorthair feline.  The presenting complaint was weight loss and PU/PD.  Blood work revealed moderate azotemia.  On ultrasound, the kidneys were bilaterally enlarged with ill-defined nodules throughout.  A nodule from one kidney was aspirate...

Aspirate from an abdominal mass of a 5-year-old spayed female Shetland Sheepdog. The presenting complaint was anorexia and vomiting for 1.5 weeks. An abdominal radiograph suggested a possible mid-abdominal mass. On ultrasound, a mixed echogenicity liver mass and an extremely large mixed echogenicity abdominal mass...

An 11-year-old spayed female Boston Terrier had a mass removed two months ago, but it was not submitted for histopathologic evaluation. Just caudal to the scar from the previous surgery, a large soft mass is now present, which is possibly the inguinal lymph node. Many...

Aspirate from the spleen of a 9-year-old female Miniature Schnauzer. The presenting complaint was intermittent hematochezia. Laboratory findings revealed anemia, thrombocytopenia, hypoalbuminemia, and hyperglobulinemia. The spleen was aspirated and submitted for evaluation. This image of the splenic aspirate consists of few small, mature lymphocytes, one erythroid...

Aspirate from the spleen of a 9-year-old neutered male Labrador. On ultrasound, the spleen appeared heterogeneous with focal hypoechoic nodules. Laboratory findings revealed a mild anemia, mildly increased liver enzymes, and a serum globulin concentration >7 g/dL. The spleen was aspirated and submitted for evaluation. This...

Aspirate of a right foreleg soft tissue mass of a 6-year-old female Tibetan Spaniel. The mass has been growing slowly over the last few months. The image consists of numerous spindle to stellate shaped cells with indistinct cytoplasmic borders that exhibit a veiling appearance. The cytoplasm...

The image consists of several large spindle to irregularly-shaped cells (osteoblasts) with an abundant amount of lightly to moderately basophilic cytoplasm that, contains many fine pink granules. The nucleus is large, round to oval, and commonly eccentric replaced, with coarsely stippled chromatin and 1-2 visible...