Lomustine (CCNU) and prednisone chemotherapy for high-grade completely excised canine mast cell tumors.

The efficacy and toxicity of lomustine and prednisone for treating high-grade completely excised mast cell tumors (MCTs) was evaluated in a retrospective study of 15 dogs. Dogs were treated with lomustine (CCNU) at 70 mg/m every 4 weeks and prednisone at 0.5 to 1 mg/kg body weight PO daily.

Evaluation of lymph node aspirates at diagnosis and relapse in dogs with high-grade multicentric lymphoma and comparison with survival time.

Background: Canine high-grade multicentric lymphoma, a common disease with variable response to chemotherapy, is often diagnosed using cytology.

Objectives: The purpose of the study was to compare cytologic features of canine peripheral lymph node aspirates collected at diagnosis and at relapse, and evaluate their usefulness in predicting survival.

Methods: Cytologic scoring based on a rubric and nuclear morphometry analyses were performed on cytologic smears collected at diagnosis and at relapse.

Yeast eIF4B binds to the head of the 40S ribosomal subunit and promotes mRNA recruitment through its N-terminal and internal repeat domains.

Eukaryotic translation initiation factor (eIF)4B stimulates recruitment of mRNA to the 43S ribosomal pre-initiation complex (PIC). Yeast eIF4B (yeIF4B), shown previously to bind single-stranded (ss) RNA, consists of an N-terminal domain (NTD), predicted to be unstructured in solution; an RNA-recognition motif (RRM); an unusual domain comprised of seven imperfect repeats of 26 amino acids; and a C-terminal domain. Although the mechanism of yeIF4B action has remained obscure, most models have suggested central roles for its RRM and ssRNA-binding activity.

What is your diagnosis? Ventral neck mass in a dog.

: A 14-year-old male Labrador Retriever was presented for lethargy and collapse. On physical examination, numerous abnormalities were found, including a large ventral neck mass (100 cm(3)) in the area of the thyroid gland. Fine-needle aspirates revealed 2 apparent populations of cells: one suspected to be a well-differentiated thyroid carcinoma, and the other consisting of large pleomorphic to spindloid cells suggestive of sarcoma.

Clinical signs, treatments, and outcome in cats with transitional cell carcinoma of the urinary bladder: 20 cases (1990-2004).

Objective: To characterize demographics and clinical signs and evaluate outcomes of treatments in cats with transitional cell carcinoma (TCC) of the urinary bladder.

Design: Retrospective case series.

Animals: 20 cats with TCC.