Peer-reviewed veterinary case report
Limping and leg muscle loss from malignant sarcoma in two dogs
By Montoliu, Patrícia et al.·Published in Veterinary journal (London, England : 1997)·2008·Department of Animal Medicine and Surgery, Spain·View original on PubMed →
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Original publication title: Femoral mononeuropathy caused by a malignant sarcoma: two case reports.
- Species:
- dog
Plain-English summary
A 9-year-old miniature poodle and a 6-year-old American Staffordshire terrier were brought in for slowly worsening lameness and muscle wasting in their left back leg. After examining them, the vet found that both dogs had issues with their femoral nerve, likely due to tumors in the left psoas muscle that were pressing on the nerve. Tests confirmed these tumors were malignant sarcomas, which are rare in dogs. Unfortunately, these cases highlight a serious condition that can cause lameness, but treatment options for such tumors would typically involve surgery or other therapies, depending on the specific situation.
People also search for: dog lameness left leg · poodle nerve injury treatment · Staffordshire terrier tumor symptoms
Abstract
A 9-year old miniature poodle and a 6-year old American Staffordshire terrier were evaluated for slowly progressive lameness and atrophy of the left pelvic limb. Neurological examinations of both animals were consistent with femoral nerve lesions. In both cases, neoplastic masses were identified within the left psoas muscle, invading the left femoral nerve or, in one case, its nerve roots. Ultrasound-guided fine needle aspirate and histopathological examination of the masses revealed that these were malignant sarcomas. Femoral mononeuropathies are very rare in dogs, and most descriptions of femoral nerve lesions are caused by traumatic injuries. Descriptions of neoplastic processes affecting the femoral nerve are limited to peripheral nerve sheath tumours (PNST). These cases provide the first descriptions of malignant neoplasms other than PNSTs that infiltrate the femoral nerve or its nerve roots and cause unilateral femoral mononeuropathy and lameness of obscure origin.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/17889576/