Diagnosing Feline Heartworms By Melanie T. Landis, DVM, MBA, TVMDL Microbiology Veterinary Diagnostician We are all familiar with the saying that “cats are not small dogs”. This is true when it comes to feline heartworm disease. While dogs are … [Read more...] about Diagnosing Feline Heartworms
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Possible Eprinomectin toxicity in a calf
Possible Eprinomectin toxicity in a calf Travis May, MS, PhD A two-month-old, 150-pound, Brahman-cross heifer calf was observed with neurologic signs following application of what was believed to be a permethrin-based insecticide. The calf died … [Read more...] about Possible Eprinomectin toxicity in a calf
Atypical Mycobacteriosis in a Cat
Atypical Mycobacteriosis in a Cat Erin Edwards, DVM, MS, DACVP Skin samples from a 9-year-old Siamese cat were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station. This cat was reported to clinically … [Read more...] about Atypical Mycobacteriosis in a Cat
Mammary sarcoma diagnosed in a Chihuahua
Mammary sarcoma diagnosed in a Chihuahua Gabriel Gomez DVM, PhD and Cheryl Maguire, DVM A nine-year-old, intact female, Chihuahua dog presented to their veterinarian for a solitary mass on the caudal most left mammary gland. The mass was excised … [Read more...] about Mammary sarcoma diagnosed in a Chihuahua
MSMA (monosodium methyl arsenate) is Not for Pasture Use
MSMA (monosodium methyl arsenate) is Not for Pasture Use Cat Barr, PhD A cattle owner in eastern Texas noticed several of the 50 weaned calves in his coastal pasture had diarrhea and didn’t seem to want to eat. The pasture had been sprayed with … [Read more...] about MSMA (monosodium methyl arsenate) is Not for Pasture Use
A dog skin infection caused by bacteria and a novel fungal pathogen, Trichocladium sp
A dog skin infection caused by bacteria and a novel fungal pathogen, Trichocladium sp. Narayan Paul, DVM, MS, PhD, Amy Swinford, DVM, MS, DACVM, and Julie Piccione, DVM, MS, DACVP A nine-year-old female, spayed dog was presented to a … [Read more...] about A dog skin infection caused by bacteria and a novel fungal pathogen, Trichocladium sp
Epizootic hemorrhagic disease (EHD) in White-Tailed deer
Epizootic hemorrhagic disease (EHD) in White-Tailed deer By Andrés de la Concha-Bermejillo, DVM, MS, PhD, Pamela Ferro, MS, PhD, and Megan Schroeder, PhD, and Brooke Kehlenbrink* *Fourth year veterinary student Food Animal Track TVMDL … [Read more...] about Epizootic hemorrhagic disease (EHD) in White-Tailed deer
Anthrax in Horses: Disease Considerations and Insight
Anthrax in Horses: Disease Considerations and Insight Guy Sheppard, DVM and Melanie Landis, DVM Bacillus anthracis is a spore-forming, facultative anaerobic, gram positive rod that is the causative agent of anthrax. Spore formation occurs when … [Read more...] about Anthrax in Horses: Disease Considerations and Insight
Sodium Ion Toxicosis in Cattle
Sodium Ion Toxicosis in Cattle Travis Mays, Analytical Chemistry Section Head Approximately 40 head of Hereford cows were grazing on 12 sections of land with oil production activity present. In one particular section, four to five cows were found … [Read more...] about Sodium Ion Toxicosis in Cattle
Factors involved in a Bovine Respiratory Disease Complex (BRDC) diagnosis
Factors involved in a Bovine Respiratory Disease Complex (BRDC) diagnosis By Guy Sheppard, DVM The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) frequently works on Bovine Respiratory Disease (BRD) cases. Multiple factors lead to … [Read more...] about Factors involved in a Bovine Respiratory Disease Complex (BRDC) diagnosis
Meningeal Worm (Parelaphostrongylus tenuis) in a Sitatunga
Meningeal Worm (Parelaphostrongylus tenuis) in a Sitatunga Terry Hensley, MS, DVM and Gabriel Gomez, DVM, PhD A less than one-year-old, 48 lb. female sitatunga (Tragelaphus spekii) in fair to poor body condition was submitted to the Texas A&M … [Read more...] about Meningeal Worm (Parelaphostrongylus tenuis) in a Sitatunga
Cat Diagnosed with Feline Asthma
Cat Diagnosed with Feline Asthma Judith Akins, DVM, MS A seven-year-old male, neutered, domestic short haired (DSH) cat was presented to a veterinarian for evaluation of chronic coughing and increased respiration of several months’ duration. A … [Read more...] about Cat Diagnosed with Feline Asthma
Malignant Catarrhal Fever in a 1-Year-Old Heifer
Malignant Catarrhal Fever in a 1-Year-Old Heifer R. Gayman Helman, DVM, PhD, MA, Guy Sheppard, DVM, and Megan Schroeder, PhD A 1-year-old heifer became weak and went off by herself in mid-April. The heifer was examined by the submitting … [Read more...] about Malignant Catarrhal Fever in a 1-Year-Old Heifer
Nasal Amyloidosis in a Horse
Nasal Amyloidosis in a Horse Andrés de la Concha-Bermejillo, DVM, MS, PhD Punch biopsies of an ulcerated plaque in the nasal mucosa of a male-castrated, 12-year-old, Quarter horse were submitted to the Texas A&M Veterinary Medical Diagnostic … [Read more...] about Nasal Amyloidosis in a Horse
Reactive Histiocytosis in a Dog: Differentials, Possible Treatments, and Other Considerations
Reactive Histiocytosis in a Dog: Differentials, Possible Treatments, and Other Considerations Jeremie Korchia, DVM, MS, DACVP A 9-year-old intact, female, cross breed dog was presented to a practitioner for subcutaneous masses all over the body. … [Read more...] about Reactive Histiocytosis in a Dog: Differentials, Possible Treatments, and Other Considerations
Heterobilharzia americana Infection in a Dog
Heterobilharzia americana Infection in a Dog Jay Hoffman, DVM, PhD Small intestinal biopsy samples from a two-year-old German Shepherd dog were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station. … [Read more...] about Heterobilharzia americana Infection in a Dog
ELISA Screening Detects Fumonisin in Corn
ELISA Screening Detects Fumonisin in Corn Travis Mays, Analytical Chemistry Section Head A 3-year-old, male Quarter horse became ataxic and kept falling over, eventually being unable to rise. The horse ultimately had to be euthanized. The onset … [Read more...] about ELISA Screening Detects Fumonisin in Corn
Cat Diagnosed with Mammary Gland Fibroadenomatous Hyperplasia
Cat Diagnosed with Mammary Gland Fibroadenomatous Hyperplasia Erin Edwards, DVM, MS, DACVP Mammary gland masses from an approximately 7-month-old cat were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for … [Read more...] about Cat Diagnosed with Mammary Gland Fibroadenomatous Hyperplasia
Myxosarcoma – A Rare Breed
Myxosarcoma – A Rare Breed Julie Piccione DVM, MS, DACVP An 11-year-old, spayed female, mixed breed dog was presented to her veterinarian for a mass on the left hind limb. Physical exam revealed a large (~6 cm), irregularly shaped, firm, … [Read more...] about Myxosarcoma – A Rare Breed
Harris’s hawk diagnosed with fatal herpesvirus infection at necropsy
Harris’s hawk diagnosed with fatal herpesvirus infection at necropsy Erin Edwards, DVM, MS, DACVP A 6-month-old Harris’s hawk was necropsied at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station and was … [Read more...] about Harris’s hawk diagnosed with fatal herpesvirus infection at necropsy
Coffee Senna Poisoning in Cattle
Coffee Senna Poisoning in Cattle By Travis Mays, Analytical Chemistry Section Head Approximately 200 head of cattle were grazing on improved native Bermuda grass pastures in the Colorado River bottom. Vegetation also included a large number of … [Read more...] about Coffee Senna Poisoning in Cattle
Canine hepatozoonosis diagnosed via skeletal muscle biopsy
Canine hepatozoonosis diagnosed via skeletal muscle biopsy By Erin Edwards, DVM, MS, DACVP Canine hepatozoonosis is a debilitating, tick-borne disease caused by Hepatozoon americanum, a protozoal parasite transmitted by the Gulf coast tick … [Read more...] about Canine hepatozoonosis diagnosed via skeletal muscle biopsy
Transmissible Venereal Tumor Discovered on Dog
Transmissible Venereal Tumor Discovered on Dog By Judith Akins, DVM, MS An aspirate from a mass on the penis of a 3-year-old, intact male, mixed breed dog was submitted for examination at the Texas A&M Veterinary Medical Diagnostic Laboratory … [Read more...] about Transmissible Venereal Tumor Discovered on Dog
Duodenitis/proximal jejunitis (DPJ) in a horse
Duodenitis/proximal jejunitis (DPJ) in a horse By Andrés de la Concha-Bermejillo, DVM, PhD A 5-year-old Andalusian stallion was presented for necropsy at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) after being euthanatized … [Read more...] about Duodenitis/proximal jejunitis (DPJ) in a horse
Nitrate Poisoning in Cattle
Nitrate Poisoning in Cattle By Travis Mays, Analytical Chemistry Section Head Recently, seventeen cows died within twenty-four hours after consuming new hay. All of the cows died within 100 yards of the hay. A sample of the hay, along with tissue … [Read more...] about Nitrate Poisoning in Cattle