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Bilateral obturator neuropathy caused by an intrapelvic fibrosarcoma with myofibroblastic features in a dog

An Vanhaesebrouck (UGent) , S Maes, Iris Van Soens (UGent) , Yseult Baeumlin (UGent) , Veronique Saey (UGent) and Luc Van Ham (UGent)
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Abstract
A nine-year-old female Rottweiler presented with a 6-week history of progressive impairment of hindlimb adduction. Clinical examination showed abduction of both hind legs when walking on a smooth surface, pain at the medial surface of the left thigh, and an intrarectal palpable mass at the pelvic floor. Electromyography demonstrated fibrillation potentials in the adductor muscles on both sides. Pelvic radiographs showed severe osteolysis of the ischium. Gross post-mortem examination following euthanasia disclosed a large retroperitoneal mass, invading the obturator foramina and compressing both obturator nerves. Histopathological examination revealed a high-grade anaplastic sarcoma. Immunohistochemically, the tumour cells labelled positively for vimentin and alpha-smooth muscle actin, hence the tumour was considered a myofibroblastic fibrosarcoma. This unique case report describes a novel cause of obturator neuropathy in veterinary medicine. To date, clinical descriptions of obturator nerve lesions have been limited to pelvic fractures in small animals and following difficult labour in large animals.
Keywords
SCIATIC-NERVE, SARCOMA, BENIGN SCHWANNOMA, COMPARTMENT SYNDROME, HEMANGIOSARCOMA, TUMOR, MUSCLE

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MLA
Vanhaesebrouck, An, S Maes, Iris Van Soens, et al. “Bilateral Obturator Neuropathy Caused by an Intrapelvic Fibrosarcoma with Myofibroblastic Features in a Dog.” JOURNAL OF SMALL ANIMAL PRACTICE 53.7 (2012): 423–427. Print.
APA
Vanhaesebrouck, A., Maes, S., Van Soens, I., Baeumlin, Y., Saey, V., & Van Ham, L. (2012). Bilateral obturator neuropathy caused by an intrapelvic fibrosarcoma with myofibroblastic features in a dog. JOURNAL OF SMALL ANIMAL PRACTICE, 53(7), 423–427.
Chicago author-date
Vanhaesebrouck, An, S Maes, Iris Van Soens, Yseult Baeumlin, Veronique Saey, and Luc Van Ham. 2012. “Bilateral Obturator Neuropathy Caused by an Intrapelvic Fibrosarcoma with Myofibroblastic Features in a Dog.” Journal of Small Animal Practice 53 (7): 423–427.
Chicago author-date (all authors)
Vanhaesebrouck, An, S Maes, Iris Van Soens, Yseult Baeumlin, Veronique Saey, and Luc Van Ham. 2012. “Bilateral Obturator Neuropathy Caused by an Intrapelvic Fibrosarcoma with Myofibroblastic Features in a Dog.” Journal of Small Animal Practice 53 (7): 423–427.
Vancouver
1.
Vanhaesebrouck A, Maes S, Van Soens I, Baeumlin Y, Saey V, Van Ham L. Bilateral obturator neuropathy caused by an intrapelvic fibrosarcoma with myofibroblastic features in a dog. JOURNAL OF SMALL ANIMAL PRACTICE. 2012;53(7):423–7.
IEEE
[1]
A. Vanhaesebrouck, S. Maes, I. Van Soens, Y. Baeumlin, V. Saey, and L. Van Ham, “Bilateral obturator neuropathy caused by an intrapelvic fibrosarcoma with myofibroblastic features in a dog,” JOURNAL OF SMALL ANIMAL PRACTICE, vol. 53, no. 7, pp. 423–427, 2012.
@article{3235836,
  abstract     = {A nine-year-old female Rottweiler presented with a 6-week history of progressive impairment of hindlimb adduction. Clinical examination showed abduction of both hind legs when walking on a smooth surface, pain at the medial surface of the left thigh, and an intrarectal palpable mass at the pelvic floor. Electromyography demonstrated fibrillation potentials in the adductor muscles on both sides. Pelvic radiographs showed severe osteolysis of the ischium. Gross post-mortem examination following euthanasia disclosed a large retroperitoneal mass, invading the obturator foramina and compressing both obturator nerves. Histopathological examination revealed a high-grade anaplastic sarcoma. Immunohistochemically, the tumour cells labelled positively for vimentin and alpha-smooth muscle actin, hence the tumour was considered a myofibroblastic fibrosarcoma. This unique case report describes a novel cause of obturator neuropathy in veterinary medicine. To date, clinical descriptions of obturator nerve lesions have been limited to pelvic fractures in small animals and following difficult labour in large animals.},
  author       = {Vanhaesebrouck, An and Maes, S and Van Soens, Iris and Baeumlin, Yseult and Saey, Veronique and Van Ham, Luc},
  issn         = {0022-4510},
  journal      = {JOURNAL OF SMALL ANIMAL PRACTICE},
  keywords     = {SCIATIC-NERVE,SARCOMA,BENIGN SCHWANNOMA,COMPARTMENT SYNDROME,HEMANGIOSARCOMA,TUMOR,MUSCLE},
  language     = {eng},
  number       = {7},
  pages        = {423--427},
  title        = {Bilateral obturator neuropathy caused by an intrapelvic fibrosarcoma with myofibroblastic features in a dog},
  url          = {http://dx.doi.org/10.1111/j.1748-5827.2012.01225.x},
  volume       = {53},
  year         = {2012},
}

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