Sertoli cell tumors are unique testicular tumors that are known for their ability to cause feminization of male dogs. These tumors are commonly diagnosed via histopathology at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL). Usually, little clinical history is provided with these submissions, and usually only testicles are submitted. This article describes a case…
Immune-mediated hemolytic anemia (IMHA) is a common disorder in dogs where red blood cells are destroyed after being coated with antibodies and/or complement. IMHA can occur as a primary (idiopathic) process or secondary to a variety of etiologies (e.g. infectious agents and neoplasia). IMHA is a dangerous disorder that leads to severe clinical disease and…
Inclusion body hepatitis (IBH) was diagnosed in a flock of 12-day- old, meat type chickens. Six live and 4 dead birds were submitted to the TVMDL-Center Lab with a history of increased mortality, swollen kidneys, and whitish spots livers. At the necropsy examination livers were pale, mottled with a reticular pattern and with subcapsular hemorrhages;…
Six 16-week-old male chickens from a flock of 500 birds were presented for necropsy at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in Gonzales. History noted one-week of swollen sinuses with minimal abnormal respiratory sounds and negligible mortality. The incidence was relatively low. Upon necropsy examination, each of the six birds had one of…
A 12-month-old black and white female laying chicken from a small backyard flock was received for necropsy. The owner had elected euthanasia of this bird following a clinical exam revealing acute abnormal respiration including open mouth breathing. Another bird in the flock had similar clinical symptoms and had died. Following euthanasia and refrigeration, the bird…
Three dogs from the same location were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for necropsy. The three dogs were mixed breed and genetically unrelated. Two of the dogs were 1.5-year-old males and the third was a 3 year-old female. Clinical history was not provided. Necropsy findings were of the same nature…
An eight-month-old veiled chameleon exhibited white, patchy, crusty skin lesions on the dorsal crest above the hind legs (Fig. 1). A skin biopsy specimen was submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for histopathology and a swab and skin crust samples were submitted for routine bacterial and fungal culture. The swab sample…
The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has seen quite a few cattle testing positive for Johne’s Disease. Clinically affected cattle are usually mature adults that are gradually losing body condition despite having a normal appetite. Chronic watery diarrhea is also usually recognized, but it can be sporadic during the syndrome. The causative organism…
The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has seen quite a few cattle testing positive for Johne’s Disease in the last several months. Clinically affected cattle are usually mature adults that are gradually losing body condition despite having a normal appetite. Chronic watery diarrhea is also usually recognized, but it can be sporadic during…
A veterinarian was called to examine a 5-month-old Angus calf due to weight loss and lethargy. On physical examination the calf had a temperature of 105˚F and all external lymph nodes were enlarged. Blood was collected and lymph nodes were aspirated. The samples were sent to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for a…