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...] about Zinc contamination in serum samples
Case Study
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...] about Marijuana detected in multiple dogs
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...] about Hyperestrogenism Syndrome in a Dog with a Sertoli Cell Tumor
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...] about Bordetellosis (Turkey Coryza) in Turkeys
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...] about Cryptosporidium in a Gerenuk
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...] about Anaplasmosis in cattle
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...] about Aspergillosis in a Pacific Eider
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...] about Failed Equine Pre-Purchase Drug Screen
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...] about Depluming mites in birds
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...] about Bovine thrombotic meningoncephalitis
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...] about Unusual presentation of histoplasmosis in a canine patient
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...] about Microfilaria identified in a penguin
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...] about Beetles found in alfalfa hay
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...] about Fowl Pox in Houdan chickens
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...] about Pyrrolizidine Alkaloid Toxicity in a mature brangus cow
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...] about Fatal Haemonchosis in a Llama
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...] about Ochroconosis (Dactylariosis) in birds
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...] about Fetal loss and neonatal mortality due to Neospora caninum in a litter of German Shorthaired Pointers
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...] about Gopher bait with anticoagulant detected in horses
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...] about Infectious respiratory disease in a group of dogs
Arsenic toxicosis in two calves
Arsenic toxicosis in two calves By Randi Gold, VMD, PhD, DACVP and Cat Barr, PhD, DABT Two hundred and forty straight stocker cattle were on a wheat and grass pasture with access to old barns filled with moldy hay, chemicals, fertilizers, and … [Read more...] about Arsenic toxicosis in two calves
Pentobarbital in a Turkey Vulture
Pentobarbital in a Turkey Vulture Travis Mays, MS, PhD Twenty turkey vultures were found dead near the vicinity of a horse that was euthanized. One of the turkey vultures was submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory … [Read more...] about Pentobarbital in a Turkey Vulture
Leishmania mexicana diagnosed in feline ear biopsy specimens – A classic entity in Texas cats
Leishmania mexicana diagnosed in feline ear biopsy specimens – A classic entity in Texas cats Erin Edwards, DVM, MS, DACVP Two biopsy specimens from the pinnae of a 6-year-old, domestic shorthair cat from east-central Texas were submitted to the … [Read more...] about Leishmania mexicana diagnosed in feline ear biopsy specimens – A classic entity in Texas cats
Multilobular tumor of bone in a dog
Multilobular tumor of bone in a dog Judith Akins, DVM, MS Tissue from a mass on the dorsal head of a twelve-year-old spayed female, mixed breed dog was submitted to the histopathology section at the Texas A&M Veterinary Medical Diagnostic … [Read more...] about Multilobular tumor of bone in a dog
Viral arthritis in broiler chickens
Viral arthritis in broiler chickens Gabriel Senties-Cue, MVZ, EPAA, MS Ten live 20-day-old, meat type chickens were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory’s (TVMDL) Center laboratory with a clinical history of … [Read more...] about Viral arthritis in broiler chickens
