ABSTRACT
Three cases of extraosseous Ewing sarcoma are reported. This pathology of the young adult is very rare as shown by the review of the literature. Clinical or imaging (CT or MRI) findings are non-specific and diagnosis is based on histology. Nonetheless, this diagnosis should be considered in all patients with primary soft tissue tumors.
Subject(s)
Muscle Neoplasms/diagnosis , Peripheral Nervous System Neoplasms/diagnosis , Sarcoma, Ewing/diagnosis , Spinal Nerve Roots/pathology , Adolescent , Adult , Diagnosis, Differential , Female , Humans , Male , Meningeal Neoplasms/secondary , Muscle, Skeletal/pathology , Neurilemmoma/diagnosis , Psoas Muscles/pathology , Sarcoma, Ewing/secondary , Thigh/pathologyABSTRACT
Pyomyositis is a purulent infection of skeletal muscle, a rare entity in temperate climates. The disease has been rarely reported in patients with AIDS. Staphylococcus aureus is the predominant organism. This article presents a case of pyomyositis following insertion of a central venous catheter. Imaging techniques (ultrasonography, computed tomography and magnetic resonance) are useful for diagnosis. The ultrasound-guided aspiration allows isolation of the etiologic agent. The traditional management is medical and surgical.
Subject(s)
Abscess/complications , Acquired Immunodeficiency Syndrome/complications , Myositis/complications , Abscess/pathology , Adult , Humans , Male , Myositis/pathologyABSTRACT
Four cases of suspected osteoid osteoma were evaluated by computed tomography (CT). The authors relate the role of CT. As a key diagnostic tool: radionuclide imaging is helpful in directing subsequent CT scans, which allows the study of complex anatomical sites (spine) or the analysis of atypical lesions (invisible nidus, sclerosis or lytic lesions, double nidus...). CT provides the surgeon with the exact location and extent of the lesion, and thus, CT may allow a more limited surgical resection of the involved bone.
