Diagnostic Guidance: Postmortem Atlanto-occipital Cerebral Spinal Fluid Sampling in Large Animals Jessie Monday, DVM, MS and Will Sims, DVM, MS Any animal demonstrating neurological signs localized to the brain or spinal cord before death may … [Read more...]
Facial nodular cellulitis in broiler breeder pullets
Facial nodular cellulitis in broiler breeder pullets Gabriel Senties-Cue, MVZ, EPAA, MS Twelve 11 and 12-week-old broiler breeder pullets from two farms were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in … [Read more...]
Calcinosis circumscripta in a surgical amputation site
Calcinosis circumscripta in a surgical amputation site Randi Gold, VMD, PhD, DACVP A one-year-old, female-spayed, mix breed dog required a mid-shaft, hind leg amputation after a femoral fracture. Following the amputation, the owner and … [Read more...]
When T4 and Free T4 Don’t Match
When T4 and Free T4 Don’t Match Julie Piccione, DVM, MS, DACVP, and Malcolm Delovio, PhD A two-year-old mixed breed dog was presented to their veterinarian for an inability to lose weight and mild hair loss. Blood was collected and serum was … [Read more...]
Cryptosporidiosis in cattle
Cryptosporidiosis in cattle Guy Sheppard, DVM and Gabriel Gomez, DVM, PhD, DACVP A seven-day-old angus bull calf with a history of diarrhea was necropsied by the submitting veterinarian. The small intestine, liver, kidney and the lymph node were … [Read more...]
Zinc contamination in serum samples
Zinc contamination in serum samples Cat Barr, PhD, DABT Recently, the Texas A&M Veterinary Medical Diagnostic Laboratory’s (TVMDL) analytical chemistry section performed zinc testing on a small set of paired samples. Prior to testing, blood … [Read more...]
Marijuana detected in multiple dogs
Marijuana detected in multiple dogs Travis Mays, MS, PhD The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) received serum for marijuana testing from three different dogs over a period of five days. Each case was unrelated, and … [Read more...]
Hyperestrogenism Syndrome in a Dog with a Sertoli Cell Tumor
Hyperestrogenism Syndrome in a Dog with a Sertoli Cell Tumor Erin Edwards, DVM, MS, DACVP Sertoli cell tumors are unique testicular tumors that are known for their ability to cause feminization of male dogs. These tumors are commonly diagnosed … [Read more...]
Bordetellosis (Turkey Coryza) in Turkeys
Bordetellosis (Turkey Coryza) in Turkeys By Martin Ficken, DVM, PhD Bordetellosis is a highly contagious upper respiratory tract disease of poultry caused by Bordetella avium, a gram-negative motile aerobic rod-shaped bacterium. B. avium is … [Read more...]
Cryptosporidium in a Gerenuk
Cryptosporidium in a Gerenuk By Will Sims, DVM, MS Tissues from a 5-month-old gerenuk, also known as a giraffe gazelle, were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in Canyon for evaluation. The calf had a … [Read more...]
Anaplasmosis in cattle
Anaplasmosis in cattle Guy Sheppard, DVM Anaplasmosis is a blood cell parasite of cattle with a worldwide distribution, but the disease is most common in tropical and subtropical areas. Anaplasma marginale is the most common organism involved in … [Read more...]
Aspergillosis in a Pacific Eider
Aspergillosis in a Pacific Eider Erin Edwards, DVM, MS, DACVP and Narayan Paul, DVM, MS, PhD A four-year-old Pacific eider (sea duck) was reported to have a history of open-mouth breathing. It had been treated for suspected aspergillosis prior to … [Read more...]
Failed Equine Pre-Purchase Drug Screen
Failed Equine Pre-Purchase Drug Screen Travis Mays, MS, PhD Blood was collected during a routine pre-purchase examination on a horse and submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station for drug … [Read more...]
Depluming mites in birds
Depluming mites in birds Martin Ficken, DVM, PhD Depluming mites (Knemidocoptes gallinae, Neocnemidocoptes gallinae) are found worldwide and are related to the scaly leg mite (Knemicocoptes mutans). Depluming mites prefer feathered portions of … [Read more...]
Bovine thrombotic meningoncephalitis
Bovine thrombotic meningoncephalitis Guy Sheppard, DVM and Andrés de la Concha-Bermejilla, DVM, MS, PhD Bovine thrombotic meningoencephalitis (TEM), formerly known as thromboembolic meningoencephalitis (TEME), is a neurological disease, primarily … [Read more...]
Unusual presentation of histoplasmosis in a canine patient
Unusual presentation of histoplasmosis in a canine patient Melanie Landis, DVM, and Julie Piccione,, DVM, MS, DACVP The clinical pathology section at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) received a digital cytology … [Read more...]
Microfilaria identified in a penguin
Microfilaria identified in a penguin Cheryl Maguire, DVM, Mindy Borst, LVT An unidentified microfilaria was found on a blood smear obtained from a 16-year old, female, captive penguin who was being treated for respiratory aspergillosis. The … [Read more...]
Beetles found in alfalfa hay
Beetles Found in Alfalfa Hay Travis Mays, MS, PhD Beetles found in a new batch of alfalfa hay were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for identification. TVMDL’s toxicology section can identify toxic … [Read more...]
Fowl Pox in Houdan chickens
Fowl Pox in Houdan chickens Gabriel Senties-Cue, MVZ, EPAA, MS Fowl Pox was diagnosed in three Houdan chickens submitted for diagnostic workup to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in Center, Texas. Upon … [Read more...]
Pyrrolizidine Alkaloid Toxicity in a mature brangus cow
Pyrrolizidine Alkaloid Toxicity in a mature brangus cow David A. Sher, B.S, Catherine Barr, PhD, Dipl ABT, Gabriel Gomez, DVM, PhD, Dipl ACVP An adult, female, 800 lb., Brangus cow in poor body condition was submitted to the Texas A&M … [Read more...]
Fatal Haemonchosis in a Llama
Fatal Haemonchosis in a Llama Erin Edwards, DVM, MS, DACVP and Mindy Borst, LVT Haemonchosis refers to parasitic infection with Haemonchus contortus, a blood-sucking parasite that lives in the abomasum. This parasite is also known as the barber … [Read more...]
Ochroconosis (Dactylariosis) in birds
Ochroconosis (Dactylariosis) in birds Martin Ficken, DVM Ochroconosis is a sporadic fungal encephalitis that has been reported in young chickens, turkey poults, quail chicks, and wild birds. It is caused by a dematiaceous, thermophilic fungus, … [Read more...]
Fetal loss and neonatal mortality due to Neospora caninum in a litter of German Shorthaired Pointers
Fetal loss and neonatal mortality due to Neospora caninum in a litter of German Shorthaired Pointers Gaya Balamayooran, DVM, PhD, DACVP and Cheryl Maguire, DVM A litter of twelve German Shorthaired Pointer puppies whelped near their due date and … [Read more...]
Gopher bait with anticoagulant detected in horses
Gopher bait with anticoagulant detected in horses Guy Sheppard, DVM and Cat Barr, PhD, DABT The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) was contacted by a client who was concerned a group of horses had potentially consumed … [Read more...]
Infectious respiratory disease in a group of dogs
Infectious respiratory disease in a group of dogs Narayan Paul, DVM, MS, PhD, Pam Ferro, MS, PhD, and Andres de la Concha, DVM, PhD Recently, three dogs from the same location were submitted to the Texas A&M Veterinary Medical Diagnostic … [Read more...]
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