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Yu Y, Hasegawa D, Hamamoto Y, Mizoguchi S, Fujimori T, Kubo Y, Islam MS, Yamato O. Skeletal radiographic manifestations of GM2 gangliosidosis variant 0 (Sandhoff disease) in two Japanese domestic cats. JFMS Open Rep 2022; 8:20551169221074964. [PMID: 35186313 PMCID: PMC8851500 DOI: 10.1177/20551169221074964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Case series summary Two Japanese domestic cats with GM2 gangliosidosis variant 0, diagnosed at different times, are included in this case series. Both cats were diagnosed by genetic analysis and had the HEXB:c.667C>T pathogenic genetic variant, which have been previously reported in Japanese domestic cats with GM2 gangliosidosis variant 0. Clinical signs and the identification of vacuolation in circulating lymphocytes were consistent with those in previous reports of feline GM2 gangliosidosis variant 0. Radiography showed that both cases had similar skeletal radiographic manifestations, which has not been previously reported in Japanese domestic cats with GM2 gangliosidosis variant 0. Radiographic findings included abnormally shaped vertebral bodies, obscure or irregular endplates (both of which were seen especially in the cervical and thoracic vertebrae), generalised osteopenia and new bone proliferation around articular facets. Relevance and novel information To the best of our knowledge, this is the first report to present the skeletal radiographic abnormalities of Japanese domestic cats with GM2 gangliosidosis variant 0 caused by the HEXB:c.667C>T pathogenic genetic variant. Furthermore, together with a report published in 2015 on the radiographic findings of feline GM2 gangliosidosis variant 0 caused by another pathogenic genetic variant, this report suggests that these findings may be indicators of feline GM2 gangliosidosis variant 0. The easily obtained radiographic findings described in this report may be useful as a finding suggestive of feline GM2 gangliosidosis variant 0, in addition to the cytological finding of the vacuolated cells. The report emphasises the utility of radiography for diagnosis of cases with suspected progressive neurodegenerative diseases.
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Affiliation(s)
- Yoshihiko Yu
- Laboratory of Veterinary Radiology, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Daisuke Hasegawa
- Laboratory of Veterinary Radiology, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
- The Research Center for Animal Life Science, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Yuji Hamamoto
- Laboratory of Veterinary Radiology, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
- Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Shunta Mizoguchi
- Laboratory of Veterinary Radiology, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
- Warabee Animal Hospital, Warabi, Saitama, Japan
| | | | - Yoshiaki Kubo
- Veterinary Medical Teaching Hospital, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Md Shafiqul Islam
- Laboratory of Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima, Japan
| | - Osamu Yamato
- Laboratory of Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, Korimoto, Kagoshima, Japan
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Longo F, Zotti A. What Is Your Diagnosis? J Am Vet Med Assoc 2021; 259:33-36. [PMID: 34125609 DOI: 10.2460/javma.259.1.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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De Simone A, Gernone F, Ricciardi M. Imaging diagnosis-bilateral abnormal ossification of the supraglenoid tubercle and cranial glenoid cavity in an English Setter. Vet Radiol Ultrasound 2012; 54:159-63. [PMID: 23094792 DOI: 10.1111/j.1740-8261.2012.01993.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 09/12/2012] [Indexed: 11/29/2022] Open
Abstract
An 8-month-old intact male English Setter was presented with bilateral shoulder lameness. Radiographic and CT examinations demonstrated bilateral irregular margination and separation of the supraglenoid tubercle from the scapula, with involvement of the cranial articular surface of the glenoid cavity. After 30 days of cage rest, complete fusion of proximal portions of both supraglenoid tubercles and persistent un-united cranial portions of both glenoid cavities were evident. Histopathologic findings from biopsies of glenoid cavity defects were consistent with osteochondrosis or focal chondrodysplasia.
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Proximal focal humeral deficiency in a large breed dog. Vet Comp Orthop Traumatol 2012; 25:532-6. [PMID: 22828648 DOI: 10.3415/vcot-12-01-0006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Accepted: 06/27/2012] [Indexed: 11/17/2022]
Abstract
A 26-week-old female Boerboel was referred for evaluation of progressive left thoracic limb lameness. Computed tomography and radiographic evaluation revealed radiolucency of the caudal region of the proximal humeral metaphysis, absence of the humeral head, and gross distortion of the glenoid. Given the severe glenohumeral deformation, arthrodesis of the left shoulder was performed using orthogonal locking bone plates, lag screw fixation, and bone grafting. Despite late implant failure, arthrodesis was successful in this case, and satisfactory limb function was restored. To the author's knowledge, this is the first report of a case of a focal developmental deficiency of the proximal humerus reported in a dog.
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