Texas A&M Veterinary Medical Diagnostic Laboratory

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Starting April 29, the USDA requires lactating dairy cows to be tested for HPAI prior to movement.
View TVMDL’s guidelines to mitigate potential delays when submitting dairy samples for movement testing.

TVMDL-College Station

Coffee senna linked to cattle deaths in Texas

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Coffee senna linked to cattle deaths in Texas By Guy Sheppard, DVM and Cat Barr, PhD Since the onset of winter, the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has seen quite a few cases of intoxication in cattle that have … [Read more...] about Coffee senna linked to cattle deaths in Texas

Biopsy Spotlight: Inflammatory Mammary Gland Carcinoma

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Biopsy Spotlight: Inflammatory Mammary Gland Carcinoma Erin Edwards, DVM, MS, DACVP Mammary gland tumors are diagnosed on a daily basis at TVMDL. These tumors occur in both canine and feline patients and can be benign (adenomas) or malignant … [Read more...] about Biopsy Spotlight: Inflammatory Mammary Gland Carcinoma

Cutaneous habronemiasis superimposed on a squamous cell carcinoma (SCC) in a horse

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Cutaneous habronemiasis superimposed on a squamous cell carcinoma (SCC) in a horse By Andrés de la Concha-Bermejillo In the summer of 2018, four partial biopsies of an infected hot brand skin lesion from a Quarter Horse stallion were submitted in … [Read more...] about Cutaneous habronemiasis superimposed on a squamous cell carcinoma (SCC) in a horse

Lymphoma diagnosed in a dog within an hour of fine needle aspiration via digital cytology service

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Lymphoma diagnosed in a dog within an hour of fine needle aspiration via digital cytology service Julie Piccione, DVM, MS, DACVP A 5-year-old, male, neutered Bulldog was presented to their veterinarian for an acute onset of multiple masses. Upon … [Read more...] about Lymphoma diagnosed in a dog within an hour of fine needle aspiration via digital cytology service

Cytoxic necrotizing factor 1 gene (CNF1) detected in E. coli isolated from a kitten lung

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Cytoxic necrotizing factor 1 gene (CNF1) detected in E. coli isolated from a kitten lung By Cheryl Maguire, DVM A one-month-old, Ragdoll kitten was presented for necropsy at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in … [Read more...] about Cytoxic necrotizing factor 1 gene (CNF1) detected in E. coli isolated from a kitten lung

Cattle Nutritional Decline in the Winter

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Cattle Nutritional Decline in the Winter By Guy Sheppard, DVM In early December, livestock submitted for necropsy at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station demonstrated various signs of declining … [Read more...] about Cattle Nutritional Decline in the Winter

Bacillary hemoglobinuria in a cow

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Bacillary hemoglobinuria in a cow By Andrés de la Concha-Bermejillo, DVM, MS, PhD The carcass of a female, 913 pound, 7-year-old Angus cow was submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for necropsy. History … [Read more...] about Bacillary hemoglobinuria in a cow

Pulmonary Toxoplasmosis Diagnosed in a Young Cat

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Pulmonary Toxoplasmosis Diagnosed in a Young Cat By Erin Edwards, DVM, MS, DACVP Pulmonary toxoplasmosis was recently diagnosed in a stray, male tabby cat approximately 1-year-old. This cat was brought to a local veterinary clinic for lethargy … [Read more...] about Pulmonary Toxoplasmosis Diagnosed in a Young Cat

Possible Methamphetamine Exposure in a Dog

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Possible Methamphetamine Exposure in a Dog By Travis Mays, Analytical Chemistry Section Head A six-month-old, intact male, Doberman Pinscher was observed chewing on a small zip-lock bag and then spit it out. The dog became hyperactive and … [Read more...] about Possible Methamphetamine Exposure in a Dog

TVMDL detects feline calicivirus in multi-cat household

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TVMDL detects feline calicivirus in multi-cat household By Cheryl Maguire, DVM Recently, the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) detected feline calicivirus (FCV) via qPCR in three cats who live in a multi-cat … [Read more...] about TVMDL detects feline calicivirus in multi-cat household

High mortality in a litter of puppies: Infection with canine herpesvirus

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High mortality in a litter of puppies: Infection with canine herpesvirus By Erin Edwards, DVM, MS, DACVP Two Presa de Canario puppies from a litter of eight were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for … [Read more...] about High mortality in a litter of puppies: Infection with canine herpesvirus

Abortion of a sheep fetus due to Cache Valley Fever Virus

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Abortion of a sheep fetus due to Cache Valley Fever Virus By Judy Akins, DVM, MS A term sheep fetus was submitted to the Texas A&M Veterinary Diagnostic Laboratory (TVMDL) for a routine necropsy. The fetus had scoliosis. The skull and … [Read more...] about Abortion of a sheep fetus due to Cache Valley Fever Virus

Strongylus vulgaris associated with liver damage and neurologic symptoms in a gelding

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Strongylus vulgaris associated with liver damage and neurologic symptoms in a gelding By Barbara C. Lewis, DVM, MS, DACVP A six-year-old mixed breed gelding experienced a sudden onset of neurologic signs including a stiff jaw, body tremors, … [Read more...] about Strongylus vulgaris associated with liver damage and neurologic symptoms in a gelding

Multiple goats diagnosed with senna plant toxicosis

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Multiple goats diagnosed with senna plant toxicosis By Cat Barr, PhD, DABT, Erin Edwards, DVM, MS, DACVP, Barbara Lewis, DVM, MS, DACVP, and Travis Mays, MS In late March of this year, the Texas A&M Veterinary Medical Diagnostic Laboratory … [Read more...] about Multiple goats diagnosed with senna plant toxicosis

Disseminated histoplasmosis in a domestic feline

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Disseminated histoplasmosis in a domestic feline By Amy K. Swinford, DVM, MS, DACVM and Barbara Lewis, DVM, PhD, DACVP Bone biopsy specimens taken from an adult male castrated domestic feline were submitted to the Texas A&M Veterinary Medical … [Read more...] about Disseminated histoplasmosis in a domestic feline

Burn-pile leads to arsenic poisoning

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Burn-pile leads to arsenic poisoning By Cat Barr, PhD Fifteen crossbred calves were placed in a pasture with a burn-pile. The day after they were provided with Johnson grass hay, one calf was found dead. Two days later, three calves were walking … [Read more...] about Burn-pile leads to arsenic poisoning