Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0026764 (multiple myeloma)
 36,148 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Objective is to identify epidemiologic and radiologic criteria allowing specific diagnoses of tumors and tumor-like lesions in the hip region and pelvis, and to optimize pre-operative staging. Patients with pelvic tumors are usually older, and their tumors are larger relative to patients with tumors in extremities. The majority of tumors in the pelvis are malignant (metastases, myeloma, chondrosarcoma, Ewing-, osteo-, and MFH/fibrosarcoma), while those in the proximal femur are in majority benign (fibrous dysplasia, solitary bone cyst, and osteoid osteoma). Soft tissue masses in the thigh in the elderly are typically sarcomas without tumor specific signs. Common tumor-like lesions occurring in the hip and pelvis that can mimic neoplasm are: infections (including tuberculosis), insufficiency/avulsion fractures, cysts, fibrous dysplasia, aneurysmal bone cyst, Langerhans cell histiocytosis, and Paget's disease. Local MR staging is based on the compartmental anatomy. The psoas and gluteal muscles are easily invaded by sarcoma originating in the ileum. The pectineus muscle protects the neurovascular bundle at the level of the hip. The thigh is separated into three compartments, some structures (Sartorius muscle) cross borders between compartments. Immobile joints (SI-joints, osteoarthritic hip) are relatively easily crossed by sarcoma and giant cell tumor.
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PMID:Bone and soft tissue tumors of hip and pelvis. 2152 68

This article briefly reviews malignant bone tumors, diffuse marrow infiltrating diseases, and other benign bone diseases with fluorodeoxyglucose (FDG) uptake on positron emission tomography/computed tomography (PET/CT) that should be differentiated from malignant tumors. Clinical use of FDG PET/CT in (1) primary malignant bone tumors including osteosarcoma, malignant fibrous histiocytoma, and primary bone lymphoma, (2) hematopoietic tumors with bone marrow involvement, such as plasmacytoma, multiple myeloma, lymphoma and leukemia, and (3) benign tumors and tumor-like lesions including hemangioma, neurogenic tumor, fibrous dysplasia, and nodular fasciitis are presented, with an emphasis on various imaging findings on FDG PET/CT. Benign tumors and tumor-like conditions are often incidentally detected on FDG PET/CT in serial follow-up studies of cancer patients and should be differentiated from metastasis.
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PMID:PET/CT in benign and malignant musculoskeletal tumors and tumor-like conditions. 2471 46


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