261/2006. A rare case of a pedunculated lipoma in the pharynx. While lipomas on the trunk and limbs are common, they are rare in the upper aerodigestive tract. A case is reported of an 18 cm long pedunculated lipoma arising from the hypopharynx in a 73 year old man. The tumour was asymptomatic until it appeared in the mouth of the patient after a coughing episode. ( info) |
262/2006. A true intra-articular lipoma of the knee in a girl. A 16-year-old girl presented with a soft-tissue mass in the anterolateral aspect of her right knee. magnetic resonance imaging revealed an intra-articular tumor arising from the anterior fat pad of the knee. The tumor showed low signal intensity on T1-weighted images and high signal intensity on T2-weighted images. It was resected under arthroscopic guidance. Grossly, the tumor was composed of soft, yellowish adipose tissue. Pathologic examination revealed a collection of mature adipocytes with marked myxoid changes in the matrix. A diagnosis of lipoma was made. True intra-articular lipomas should be distinguished from lipoma arborescens, which is considered to be a reactive process. In the English language literature, we found only 7 cases of true intra-articular lipoma reported previously. The present case is the youngest patient with such a tumor, and all the previous reports are of the tumor in adult patients. Intra-articular lipoma should be considered in the differential diagnosis of intra-articular masses in adolescents. ( info) |
263/2006. Liposuction of a pediatric giant superficial lipoma. Liposuction can be considered a preferable alternative to conventional surgery in pediatric lipomas that are bigger than 4 cm. Liposuction of pediatric lipomas has not been found in the English-language literature. The case of a 5-year-old girl who had liposuction of a large lipoma extending from the lower cervical to the right lumbar region is reported with a review of the literature on the technique, follow-up, and outcome of the procedure. ( info) |
| We report a case of a pulmonary valve lipoma presenting as syncope in a 28-year-old woman. Surgical excision of the mass was performed in urgency and the patient was discharged uneventfully. ( info) |
265/2006. Jejunojejunal intussusception secondary to lipoma in an adult. Lipoma is a rare cause of adult intussusception. We present the CT findings of an adult patient with jejunojejunal intussusception secondary to submucosal lipoma as the lead point in this case report. ( info) |
266/2006. Intracortical lipoma of the femur. The authors report on a rare case of intracortical lipoma of the right femur in a 74-year-old woman. magnetic resonance imaging and computed tomography of the femur demonstrated an intracortical lesion in the lateral diaphysis. No medullary involvement by the lesion was noted. Both imaging methods revealed the presence of fat in the lesion. Histologically, the tumor consisted of a large area of mature adipose tissues, admixed with foci of fat necrosis, calcification, and myxoid degeneration. Total excision of the tumor was curative. This is the second reported case of intracortical lipoma. ( info) |
267/2006. Endoscopic removal of large colonic lipomas. BACKGROUND: Colonic lipomas are benign adipose tumors that rarely cause symptoms. Removal of lipomas 2 cm or greater in diameter has been associated with a greater risk of perforation. Experience with the evaluation and removal of large colonic lipomas with the assistance of EUS to reduce the risk of perforation is reported. methods: Four patients with large colonic lipomas were evaluated and treated with endoscopic methods. EUS was performed to confirm that the lesion was a lipoma superficial to the muscularis propria. Saline or epinephrine solution was injected at the base of the tumor, which was then resected electrosurgically with a snare. OBSERVATIONS: All 4 lesions were successfully removed and histopathologically confirmed to be lipomas (mean maximal diameter 2.8 cm). There were no complications of any procedure. One patient was hospitalized overnight because of abdominal pain that resolved without complication. CONCLUSIONS: Large colonic lipomas can be removed safely by electrosurgical snare resection after injection of the base with epinephrine or saline solution. EUS should be used to ensure that the lipoma does not extend into the muscularis propria. Clinical judgment is important in assessing the need to remove these lesions. ( info) |
268/2006. Intramuscular lipoma of the deltoid mimicking a sarcoma. A case report. The authors present a case of intramuscular lipoma of the deltoid, one of the largest ever to be described in the literature, clinically confused with a sarcoma. ( info) |
269/2006. Renal angiomyolipoma: two varieties. Two cases of symptomatic renal angiomyolipoma are presented, and their distinctive clinical, radiologic, and histologic features are discussed. In the first case the scout film demonstrated radiolucency of the tumor which helped to distinguish it from carcinoma. In the second case, which was associated with tuberous sclerosis, the renal lesion was large and unifocal, and the local lymph nodal involvement with tumor raised the possibility of malignant transformation. ( info) |
270/2006. Lipoma arborescens of the hip. Lipoma arborescens is a rare intra-articular lesion characterized by extensive villous proliferation of the synovial membrane and hyperplasia of subsynovial fat. Although it has been described as arising from traumatic, inflammatory, rheumatologic, developmental, and neoplastic causes, its etiology remains unknown. This article describes in detail--for the first time in the orthopedic literature-a case of lipoma arborescens of the hip. Clinical presentation, histologic and radiographic findings, and treatment of this rare lesion are discussed. Based on clinical, radiologic, and surgical evaluation, differential diagnosis for this lesion should include other conditions that cause synovial thickening, proliferation, and joint effusion--for example, synovial chondromatosis, pigmented villonodular synovitis, synovial hemangiomatosis, and rheumatoid arthritis. Description of this case covers the full radiologic evaluation, including magnetic resonance imaging (MRI), diagnostic pathologic description, and minimum 24-month follow-up. Although lipoma arborescens of the hip is a rare condition, it should be considered in the differential diagnosis of patients with its characteristic clinical prodrome and MRI findings confirming a periarticular fatty mass. ( info) |