A novel method of core aspirate cytology compared to fine-needle aspiration for diagnosing canine osteosarcoma.

There is little information in veterinary literature regarding the diagnostic accuracy of aspirate cytology for the diagnosis of canine osteosarcoma (OSA). The authors compared the diagnostic accuracy of a novel method of cytologic collection, termed core aspirate cytology (CA), with fine needle aspiration (FNA) and histopathology in 27 dogs with lytic and/or proliferative bone lesions. Alkaline phosphatase (ALP) staining was performed to confirm the diagnosis of OSA cytologically.

Evaluation of factors associated with second remission in dogs with lymphoma undergoing retreatment with a cyclophosphamide, doxorubicin, vincristine, and prednisone chemotherapy protocol: 95 cases (2000-2007).

Objective: To evaluate factors associated with second remission in dogs with lymphoma retreated with a cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) protocol after relapse following initial treatment with a first-line 6-month CHOP protocol.

Design: Retrospective case series.

Animals: 95 dogs with lymphoma.

Imaging diagnosis--urinary obstruction secondary to prostaticlymphoma in a young dog.

A 3-year old, intact male Doberman pinscher was examined at the Foster Hospital for Small Animals at Tufts University for a 2-week history of stranguria, dyschezia, and weight loss. Ultrasonographically, there was bilateral hydronephrosis, right-sided hydroureter, hepatosplenomegaly, symmetric mild prostatomegaly, and a distended urinary bladder. Fine needle aspirates and biopsies of the prostate yielded a diagnosis of lymphoma.

Comparative aspects and clinical outcomes of canine renal hemangiosarcoma.

Background: Hemangiosarcoma (HSA) is a common solid tumor of the spleen, heart, and skin of dogs. Renal HSA represents an uncommon anatomic variant, with little reported about its biologic behavior and clinical outcome.

Hypothesis: That renal HSA is associated with longer survival than other visceral forms of HSA.