ABSTRACT
PURPOSE: We analyzed 10 cases of intraosseous lipoma to elucidate the clinical, radiographic and pathological features, and studied the correlation between of the radiographic and pathological findings. MATERIALS AND METHODS: Ten cases of 9 patients were the subjects of this study. One patient had intraosseous lipoma in bilateral calcaneus.For the analysis of clinical features, medical records were reviewed. The simple x-ray, MRI and CT images were reviewed. The MRI examinations included T1-weighted, T2-weighted and fat-suppressed (STIR) images in all cases. Histological findings were reviewed and classified with Milgram's stage classification, and the radiographic findings also in 3 stages, and correlation of radiographic and histological stage was studied. RESULTS: The mean age of the patients was 39 years (range, 34-60 years). Seven patients were men and three were women. The meansize of the lesion was 3.4 cm (range, 2.0-5.0 cm). The most common anatomical location was calcaneus as 7 cases. Only four patients complained pain as symptom and six patients were asymptomatic. We had curettage and bone graft for the treatment. There were nolocal recurrence or malignant change during the follow up. With Milgram's classification, two cases were stage I, four were stage II and the other four were stage III. In radiographic stage, two cases were stage I, three were stage II and five were stage III. The radiographicstages were very well correlated to the histological stage. CONCLUSION: Intraosseous lipomas had characteristic radiographic and histological features according to the presenting stages, and their radiographic findings were very well correlated to the histological findings.
Subject(s)
Female , Humans , Male , Calcaneus , Classification , Curettage , Follow-Up Studies , Lipoma , Magnetic Resonance Imaging , Medical Records , Recurrence , TransplantsABSTRACT
The cytokines are the hormone-like proteins, which are produced in the mononuclear cells. They have many roles, such as immune mediators, cell differentiations, angiogenesis. The chemokines have chemotactic effects which control the host immune response. There were few reports about the cytokines associated with musculoskeletal tumors. From late 1980s, the cytokine studies of bone tumors such as osteosarcoma were started, but most studies for benign and malignant musculoskeletal tumors were left to be explored. To evaluate the characteristics of the cytokines in variable musculoskeletal tumors, tissues were obtained from the seven patients who visited the Yeungnam University hospital from February to July 2000. They were lipoma (1 case), parosteal osteoma (1 case), enchondroma (2 cases), pigmented villonodular synovitis (1 case), ganglion (1 case), and metastaic squamous cell carcinoma (1 case). The gene experession of the cytokines were analyzed by RNase protection assay (RPA) and reverse transcription-polymerase chain reaction (RT-PCR). The lipoma and parosteal osteoma expressed MIP-1beta, and IP-10 genes. The two enchondromas showed different results, one expressed all of MIP-1alpha, MIP-1beta and IP-10 genes but the other expressed none of above. The pigmented villonodular synovitis strongly expressed MIP-1alpha and IP-10 when compared with the other cases. The ganglion did not express all of the chemokines mentioned above. And the metastatic squamous cell carcinoma expressed all of the chemokines and especially IP-10 was highly expressed. Even though this study has only a few cases, these results provide a basis for the cytokine mediating network study in musculoskeletal tumors.
Subject(s)
Humans , Carcinoma, Squamous Cell , Cell Differentiation , Chemokine CCL3 , Chemokine CCL4 , Chemokines , Chondroma , Cytokines , Ganglion Cysts , Lipoma , Negotiating , Osteoma , Osteosarcoma , Ribonucleases , Synovitis, Pigmented VillonodularABSTRACT
The cytokines are the hormone-like proteins, which are produced in the mononuclear cells. They have many roles, such as immune mediators, cell differentiations, angiogenesis. The chemokines have chemotactic effects which control the host immune response. There were few reports about the cytokines associated with musculoskeletal tumors. From late 1980s, the cytokine studies of bone tumors such as osteosarcoma were started, but most studies for benign and malignant musculoskeletal tumors were left to be explored. To evaluate the characteristics of the cytokines in variable musculoskeletal tumors, tissues were obtained from the seven patients who visited the Yeungnam University hospital from February to July 2000. They were lipoma (1 case), parosteal osteoma (1 case), enchondroma (2 cases), pigmented villonodular synovitis (1 case), ganglion (1 case), and metastaic squamous cell carcinoma (1 case). The gene experession of the cytokines were analyzed by RNase protection assay (RPA) and reverse transcription-polymerase chain reaction (RT-PCR). The lipoma and parosteal osteoma expressed MIP-1beta, and IP-10 genes. The two enchondromas showed different results, one expressed all of MIP-1alpha, MIP-1beta and IP-10 genes but the other expressed none of above. The pigmented villonodular synovitis strongly expressed MIP-1alpha and IP-10 when compared with the other cases. The ganglion did not express all of the chemokines mentioned above. And the metastatic squamous cell carcinoma expressed all of the chemokines and especially IP-10 was highly expressed. Even though this study has only a few cases, these results provide a basis for the cytokine mediating network study in musculoskeletal tumors.