Mycobacterium haemophilum infection in canine cerebrospinal fluid.

A 4-year-old female spayed Australian cattle dog was presented to the Emergency Service at the University of Missouri Veterinary Health Center Small Animal Hospital for generalized pain and lethargy. At presentation, the dog showed severe cervical spinal pain and thoracic limb deficits consistent with a multifocal neuroanatomic localization. Magnetic resonance imaging of the cervical spine revealed T2 and T1 postcontrast intense signal extending from the level of the medulla through C5 most marked in the caudal brainstem and cranial cervical spinal cord.

Urothelial carcinoma with tonsillar metastasis in a dog.

Given its unusual lymphatic drainage system, the tonsil is a rare site of metastasis, with few reports in the human and veterinary literature. Prognosis in cases of tonsillar metastasis is reportedly poor. We describe here a unique case of urinary bladder urothelial carcinoma (UC) with metastasis to the tonsil in an 11-y-old, spayed female, mixed-breed dog.

Cytologic diagnosis of Mycoplasma in a recurrent abscess from a cat.

A 10-year-old, neutered male, indoor/outdoor domestic shorthair cat was presented for a mass on the right front paw. The mass was treated as an abscess, and despite initial resolution, the mass recurred and ruptured approximately 1 month later. This mass successfully resolved with intense management as an open wound.

Novel Penicillium species causing disseminated disease in a Labrador Retriever dog.

This report describes the phenotypic characteristics of a novel Penicillium species, Penicillium labradorum, isolated from a 3-year-old male, castrated, Labrador retriever with disseminated fungal disease. The dog's presenting clinical signs included lethargy, lymphadenopathy, tachypnea, moderate pitting edema, and nonweight bearing lameness associated with the right hind limb. Fine-needle aspirate biopsies from the sublumbar and prescapular lymph nodes were initially examined.

Tryptophan metabolism is differently regulated between large and small dogs.

Companion dogs have recently been promoted as an animal model for the study of aging due to their similar disease profile to humans, the sophistication of health assessment and disease diagnosis, and the shared environments with their owners. In addition, dogs show an interesting life history trait pattern where smaller individuals are up to two-fold longer lived than their larger counterparts. While some of the mechanisms underlying this size and longevity trade-off are strongly suspected (i.

Hemophagocytosis and Histoplasma-like fungal infection in 32 cats.

Histoplasmosis is one of the most common systemic fungal diseases in cats from the United States. It commonly causes respiratory or disseminated disease and is often associated with one or more cytopenias. Here, we describe 32 cats in which a Histoplasma-like fungal infection was associated with concurrent hemophagia in at least one sample site, commonly spleen, bone marrow, liver, and/or lymph node.

Concurrent thoracic mesothelioma and thyroid C-cell adenoma with amyloid deposition in an aged horse.

A 21-year-old American Saddlebred mare died with a history of weight loss and breathing difficulties of 1 month duration. Post-mortem examination revealed a copious pleural effusion with multifocal to coalescing numerous white to grey nodular masses on the serosal surface of the pericardium, lungs and thoracic cavity. In addition, the left thyroid gland was markedly enlarged.

Cytologic comparison of the percentage of mast cells in lymph node aspirate samples from clinically normal dogs versus dogs with allergic dermatologic disease and dogs with cutaneous mast cell tumors.

OBJECTIVE To compare percentages of mast cells in lymph node (LN) aspirate samples from clinically normal dogs, dogs with allergic dermatologic disease (ADD), and dogs with cutaneous mast cell tumors (MCTs). DESIGN Prospective cross-sectional study. ANIMALS 20 healthy dogs (group 1), 20 dogs with ADD (group 2), and 20 dogs with an MCT on the head or limbs (group 3).