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Topic:Case Reports
Case reports in equine medicine provide detailed accounts of individual horses' clinical presentations, diagnostic processes, treatments, and outcomes. These reports are valuable for documenting rare conditions, novel treatment approaches, or unique clinical insights that may not be captured in larger studies. By focusing on individual cases, these reports contribute to the broader understanding of equine health and disease management. They often include comprehensive information on the horse's history, clinical findings, diagnostic tests, therapeutic interventions, and follow-up evaluations. This page assembles peer-reviewed case reports and scholarly articles that explore diverse aspects of equine health, offering insights into specific medical scenarios and their implications for veterinary practice.
Adenocarcinoma of the intestine in a horse: an unusual occurrence. CARCINOMAS of the small intestine, colon and rectum are relatively rare in domestic animals (Cotchin 1960; Jubb and Kennedy 1970; Meagher, Wheat, Tennant and Osburn 1974; Moulton 1978). A survey of 333 tumours in farm animals revealed 39 horse neoplasms (Misdorp 1967). Twenty-eight of those were from horses in an abattoir survey in which 20,000 horses were slaughtered (an incidence of 0.14 per cent). The remaining 11 were tumours sent in by meat inspectors. Only four of the 39 were present in the digestive system. Two of them were metastasising squamous cell carcinomas in the stomach a...
Rodeo roping thumb injuries. Three men with thumb injuries sustained during rodeo roping competition have been treated recently. Two of the thumbs were amputated, and the third was partially avulsed. The mechanism of injury was identical in all three cases. The thumbs were entwined between the rope and saddle horn while reducing the slack in the rope and then subjected to shearing and crushing forces as tension was placed on the rope. These injuries emphasize the importance of keeping the thumb upward and clear of the rope to avoid entrapment between the rope and saddle horn.
Primary renal cell carcinoma in a horse. A case of primary renal cell carcinoma in a 16-year-old mare is reported. The main presenting signs of chronic weight loss and diarrhoea as well as the initial laboratory examination did not directly indicate renal involvement. Follow-up investigations were strongly suggestive of avain tuberculosis. Further laboratory investigation revealed neoplasia, which was confirmed at autopsy.
Borrelia sp. infection in a horse. The clinical signs, response to treatment and features of the spirochaete, Borrelia theileri as was found in a horse with suspected borreliasis are described.
Fetlock annular ligament desmotomy: a report of 24 cases. Restriction of free movement of the flexor tendons through the fetlock canal results in lameness. The commonest cause was chronic synovitis of the digital sheath. The condition is characterised by an unremitting lameness, synovial distension and a notch on the caudal aspect of the limb. The condition can be relieved by section of the annular ligament of the fetlock. In a series of 24 cases 16 horses returned to work with no recurrence of lameness, three cases were lost to follow up and five animals remained lame; three of these had intercurrent disease.
Three cases of ruptured mitral valve chordae in the horse. The paper describes clinical observations in three horses with ruptured mitral valve chordae. Horses with ruptured mitral valve chordae may have a history of sudden onset of acute distress with predominantly respiratory symptoms. On auscultation there will be a widespread pansystolic murmur with an extension of the area of cardiac auscultation. The third heart sound may be very pronounced and unduly prolonged, associated with high volume flow during early ventricular filling in diastole. However, these sounds are not specific for chordal rupture--they are typical of severe mitral regurgitation...
Progressive haematoma of the maxillary sinus in a horse. A nine-and-a-half-year-old three quarters thoroughbred gelding was presented with unilateral epistaxis. The cause was a destructive, progressive haematoma in the left maxillary sinus. In all previous reports of progressive haematomata in the equine nasal cavity, the site of origin has been the ethmoidal labyrinth. Surgical removal of the progressive haematoma resulted in an apparent cure.
Suspected hepatotoxicity in neonatal foals: preliminary report of an emerging syndrome. An apparently new and emerging fatal hepatic disease affecting foals is described. Characteristics included evidence of hepatic failure, marked biliary hyperplasia, hepatocellular necrosis and occasionally fibrosis. Generally, the features of the disease appear to differ markedly from other hepatic diseases of neonatal foals.
Fibrotic myopathy in the horse. The case histories of 18 horses with hindlimb lameness attributed to fibrotic myopathy were reviewed. In 14 horses, the problem developed after trauma. In 5 others, it developed secondary to intramuscular injections. Other causes of the lameness were surgery, exertional injuries, and purpura hemorrhagica. Eleven of the horses were treated by resection of scar tissue or by semitendinosus myotenotomy. Postoperative complications included pressure necrosis under quill sutures (9 horses), acute disruption of the skin incision (2 horses), dehiscence of the wound during healing (2 horses), and prolo...
Odontodysplasia in a horse. Weight loss, poor growth and dysphagia occurred in a young stallion with some teeth missing, and soft, discolored and/or deformed deciduous incisors, premolars and molars. At necropsy, permanent teeth sites were filled with yellow, gelatinous material. Clinical signs suggested fluorosis but laboratory findings did not confirm the diagnosis.
Clostridial cellulitis in the horse: a report of five cases. Five horses with fatal clostridial cellulitis are described. The characteristic findings were the rapid development of a crepitant swelling with an associated toxemia, which in four cases followed intramuscular injections. The clinical features, diagnostic techniques and pathogenesis are discussed. The importance of an early diagnosis is emphasized.
Modified Forssell’s operation for crib biting in the horse. Thirty-five horses with a history of crib biting or wind sucking were treated with a modification of the Forssell procedure. The technique involved bilateral neurectomy of the ventral branch of the accessory nerve combined with excision of a portion of the omohyoideus, sternohyoideus, and sternothyroideus muscles. Twenty horses became free of the vice, while in 11 there was a noticeable reduction in frequency of the vice. Four horses returned to crib biting/wind sucking at the same intensity as before surgery. The observation time following each operation was at least 12 months. Complications ...
Lymphosarcoma and associated immune-mediated hemolytic anemia and thrombocytopenia in horses. Three horses with equine lymphosarcoma were examined because of clinical signs including chronic weight loss, respiratory distress, peripheral edema, and chronic colic. Clinicopathologic findings included evidence of an immune-mediated hemolytic anemia. Immune-mediated thrombocytopenia also was diagnosed in 1 of the horses and suspected in another. One horse died in spite of treatment, 1 died 5 hours after surgical removal of a tumor encircling the jejunum, and 1 was euthanatized because of deteriorating condition. Necropsy of each horse revealed extensive neoplastic infiltration of peripheral...
Urolithiasis in the horse – a review of 13 cases. The presenting signs, treatment and postoperative progress of 13 horses with vesical and urethral calculi are reviewed. Single, discrete stones were present in 10 animals in which the results of treatment were generally good. In three horses with sabulous cystic deposits, urolithiasis was associated with bladder paralysis and the response to treatment was poor.
Toxic hepatopathy in neonatal foals. Six foals of three different breeds, born to healthy mares, appeared normal at birth, and died at two to five days of age with icterus, ataxia, head pressing, and terminal hepatic coma. Their livers were less than one-half normal weight. Most of the liver was dark red-brown and slightly rubbery. Histologically, these areas were characterized by severe bile ductule proliferation, mild portal tract fibrosis, and massive hepatocellular necrosis and lobular collapse. A small proportion of the liver, usually on the peripheral part of the lobes, was grossly light brown and slightly raised. Histologi...
[Nutrition and skin diseases in the horse]. Skin diseases of the horse can be produced or enhanced through nutrient deficiency, intestinal formation of detrimental substances, photosensitizing compounds and by intake of allergenes. An exact case history regarding feeding is useful for evaluation of every skin abnormality.
