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Osteochondromas in the horse are most commonly found as a solitary lesion affecting the distal radial metaphysis. In this location, diagnosis is reliant on radiographic and ultrasonographic examination and confirmed with post-operative histopathology. This case report describes the additional benefit of performing a CT arthrogram to aid the diagnosis of an osteochondroma in an atypical location. 相似文献
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Solitary osteochondromas are a relatively infrequent cause of lameness in the horse, most commonly occurring in the caudal distal radial metaphysis, with sparse reports in other locations. Their presence adjacent to a synovial sheath frequently results in intra-thecal tendinous laceration and resultant synovial effusion. Surgical excision in combination with arthroscopic debridement of the tendinous pathology offers the best prognosis for soundness. This report details the successful treatment of a caudodistal tibial osteochondroma using a combination of open surgical excision and tarsal sheath tenoscopy. 相似文献
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A de novo mutation in the EXT2 gene associated with osteochondromatosis in a litter of American Staffordshire Terriers 
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E. Rebsamen H. Geyer A. Fürst M. Wehrli Eser C. Koch M. Kummer 《Equine Veterinary Education》2012,24(1):30-37
Exostosis of the os pubis causing haematuria, and potentially cystorrhexis, in horses has not been described in the literature. In this study, 2 geldings that suffered from exercise‐induced haematuria caused by an osteochondroma of the os pubis, and the assessment of 41 cadaveric pubic bones are reported on. The anatomy of the os pubis is highly variable. The prevalence of exostosis in the os pubis appears to be higher in male horses. Palpation and ultrasonography of the pelvis per rectum and cystoscopy are valuable diagnostic tools. Depending on the extent of changes in the bladder wall, surgical removal of the exostosis should be considered in order to prevent cystorrhexis. In horses that present with haematuria, closer assessment of the os pubis for the presence of an exostosis is warranted. 相似文献
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A 13-year-old, crossbred grey mare was referred for examination of a left-sided head tilt and neck stiffness which had been noted for several months. Radiographic examination of the head revealed severe periarticular bone formation surrounding the dorsal and ventral margins of the atlanto-occipital joint and a large multilobular bony mass encroaching on the guttural pouch. Computed tomographic examination confirmed a multiloculated bony mass invading the vertebral canal and causing marked spinal cord compression and displacement. Histologically, this was identified to be an osteochondroma and the horse was conservatively managed. 相似文献
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A 7-year-old Holsteiner gelding was presented with a left common digital extensor sheath effusion of one-year's duration. Radiographic examination revealed two extra-articular mineralised bodies adjacent to the dorsolateral carpometacarpal joint. Ultrasonography confirmed an intrathecal location of one mineralised body in the common digital extensor sheath, palmar fraying of the common digital extensor tendon and tenosynovitis. Ultrasound could not confirm whether the second mineralised body was intrathecal or located external to the common digital extensor sheath. Common digital extensor tenoscopy facilitated removal of both mineralised bodies and revealed a fistula communicating with the carpometacarpal joint. The mineralised bodies, initially thought to be synovial osteochondromas, were histologically identified as para-articular osteochondromas. There are no previously published reports of para-articular chondroma/osteochondroma in the horse. Despite surgical removal of the para-articular osteochondromas, concern for future extensor sheath distension remained given the communication between the carpometacarpal joint and common digital extensor sheath. 相似文献
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Reasons for performing study: Although a well recognised clinical entity, only small numbers of osteochondromata on the caudal distal radius have previously been published and its occurrence in young racing Thoroughbreds has not previously been reported. Identification and management of associated lesions in the deep digital flexor tendon have received scant attention in the literature. Hypothesis: Osteochondromata of the caudal distal radius occur commonly in young racing Thoroughbreds. They vary in size and location, sagittally and proximodistally, but the majority cause impingement damage to the deep digital flexor tendon. Methods: Case records and diagnostic images of horses with osteochondromata of the caudal distal radius were reviewed retrospectively and follow‐up information obtained. Results: Twenty‐five osteochondromata were identified in 22 horses, 19 of which were Thoroughbreds. All osteochondromata were metaphyseal. Twenty‐two were in the middle one‐third of the bone and laceration of the adjacent deep digital flexor tendon was identified in 21 limbs. Treatment in all cases consisted of removal of the osteochondroma with debridement of the deep digital flexor tendon when this was affected. All horses returned to work and none exhibited any evidence of recurrence. Conclusion: Osteochondromata of the caudal distal radius occur in young racing Thoroughbreds but are also identified in other horses. They have a consistent metaphyseal location and most are found in the middle one‐third of the radius. Size varies, but most cause laceration of the adjacent deep digital flexor tendon. Treatment by removal of the mass and debridement of the tendon is associated with a good prognosis. Potential relevance: Osteochondromata of the caudal distal radius are an important cause of tenosynovitis of the carpal sheath of the digital flexor tendons in young racing Thoroughbreds. When present in the most common location of the middle one‐third of the bone, they are likely to cause impingement damage to the deep digital flexor tendon. Tenoscopic surgery offers a good prognosis. 相似文献
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在内蒙古地区检验双峰驼１８５８峰，检出肿瘤４例，其中良性肿瘤１例，恶性肿瘤３例。本文首次报道了双峰驼的骨软骨瘤、胆管细胞癌、肺鳞状细胞癌和腹膜间皮肉瘤。对４种骆驼肿瘤的形态和结构作了详细描述，并对其病理形态学和组织发生进行讨论。 相似文献
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