A case of Pearsonema eggs in the urine sediment of a cat in Trinidad.

Nematodes of the urinary tract of domestic dogs and cats are a rare occurrence. The discovery of the eggs on urine sediment examination is usually an incidental finding. A twenty-one month old intact queen presented to the Veterinary Teaching Hospital with a history of a serosanguinous vaginal discharge and reddish colour urine for the last ten days. Complete blood count and biochemistry analysis revealed an inflammatory leukogram and a hyperproteinaemia. A urogenital tract infection was diagnosed as haematuria, pyuria, bacteriuria, proteinuria and alkaline urine were evident on urinalysis examination. Microscopic examination of the urine sediment also detected eggs with asymmetrical bipolar plugs characteristic for Pearsonema species. A distended uterus as well as a raised lesion in the mucosal layer of the urinary bladder were observed with ultrasonography. A routine ovariohysterectomy was performed. The cat was also treated with ivermectin and amoxicillin. The cat improved with the eventual resolution of the red colour urine and serosanguinous vaginal discharge.

Disseminated Mycobacterium avium subsp. hominissuis infection and ascites in an FIV-positive cat.

A domestic shorthair cat was presented to the Veterinary Teaching Hospital at The University of the West Indies with a history of anorexia, ataxia, and lethargy. On physical examination, moderate abdominal distension and a palpable abdominal fluid wave were noted. Dark yellow, cloudy fluid was collected via abdominocentesis. Fluid analysis indicated that the effusion was a transudate containing low numbers of macrophages and occasional neutrophils. Some of the macrophages contained rod-shaped nonstaining structures of variable length (2-4 um). These structures were also seen extracellularly in low numbers. The morphology of the structures was suggestive of Mycobacterium. The cat's condition continued to deteriorate, and it died within a few hours of being admitted. Further diagnostic tests revealed feline immunodeficiency virus (FIV) infection with concurrent Mycobacterium avium subsp hominissuis infection. To the authors' knowledge, this is the first reported case of nontubercular mycobacterial-related ascites in a cat.