1/82. Mediastinal hibernoma.A 46-year-old asymptomatic male was detected to have a posterior mediastinal mass on a routine check-up. He underwent thoracotomy to remove the mass, which was found to be a hibernoma. The mediastinum is an extremely rare site for an even rarer tumor like the hibernoma. An additional unique feature was the very large tumor size despite which the patient was asymptomatic. Imaging studies are not helpful in revealing its clinically indeterminate nature, hence a surgical specimen is necessary to establish the correct diagnosis. Total excision is advocated for cure, as there is no known malignant potential.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
2/82. Large paravaginal pelvic lipoma. A case report.BACKGROUND: Pelvic lipoma is an extremely rare problem. Current imaging techniques are very helpful in diagnosis and assessment. CASE: A 36-year-old woman, gravida 2, para 3, presented with pelvic pressure and a bulging perineum on the left side. Pelvic examination revealed an 8 x 10-cm, soft mass filling the left hemipelvis. Pelvic ultrasound and computed tomography delineated the mass and suggested a fatty tumor without invasion of surrounding structures. Via laparotomy, a 400-g lipoma was removed from the left paravaginal/ paravesical/pararectal space. The patient had an uneventful recovery. CONCLUSION: Pelvic lipoma should be considered in the differential diagnosis of a soft, solid tumor filling the lateral pelvis. ultrasonography and computed tomography are very helpful in assessing the nature of the mass. Removal can be done with a transperineal approach.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
3/82. Spindle-cell variant of intralingual lipoma--report of a case with literature review.A true lipoma is a rare lesion in the oral cavity. A histologically distinct variant is the spindle-cell variety, which is an innocuous lesion that can simulate a myxoid liposarcoma. We report a case of intra-oral spindle-cell lipoma in a 42-year-old female and have reviewed the literature pertaining to this unusual histopathological entity. awareness of the condition is essential for both clinicians and pathologists to avoid any misinterpretation of the benign nature of this condition.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
4/82. forehead lipoblastoma mimicking a hemangioma.A case of forehead lipoblastoma simulating a hemangioma in a male infant is reported, to alert pediatricians to this rare tumor and to increase the index of suspicion in atypical hemangiomas. A 2-month-old male infant developed a protruding forehead mass with increased vascularity. It demonstrated progressive and accelerated growth over the subsequent 6 months, unresponsive to steroid therapy. A magnetic resonance imaging scan supported the diagnosis of hemangioma because of the hypervascular nature of the lesion. Surgical excision was performed because of visual obstruction. Pathologic examination of the specimen was consistent with a very primitive lipoblastoma. This tumor is a rare, benign lesion of immature fat cells that is found almost exclusively in the pediatric population. Lipoblastomas are more common in males than females and frequently present as asymptomatic, rapidly enlarging, soft lobular masses on the extremities. Complete surgical excision is the definitive treatment. In the vast majority of reported cases, however, the preoperative diagnosis was incorrect, underscoring the diagnostic dilemma presented by these rare tumors.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
5/82. lipoblastoma: better termed infantile lipoma?lipoblastoma is a rare adipose tumor occurring exclusively in childhood. There have been no reports of metastases, making the designation "blastoma" confusing, since this term is usually reserved for malignant tumors. Two recent cases treated at our institution confirm its benign nature. In addition, a review of the literature supports the idea that the tumor may more accurately be described as an "infantile lipoma". Infantile lipoma better reflects many of the tumor's characteristics such as, its early occurrence, it's ability to mature into a simple lipoma, it's cellular composition of mainly mature adipocytes, and its benign course. Although lipoblastoma is an uncommonly encountered tumor, making an effort to change its name to infantile lipoma will result in a more a accurate term that will facilitate treatment.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
6/82. Thymohemangiolipoma, a rare histologic variant of thymolipoma: a case report and review of the literature.We report a case of a thymic neoplasm in an 18-year-old woman who presented with chest discomfort and an anterior mediastinal mass. The surgically resected tumor showed abundant adipose tissue admixed with thymic tissue and numerous medium-caliber blood vessels. We consider this tumor a rare variant of thymolipoma and designate it as thymohemangiolipoma. Because of its benign nature, it should be distinguished from other mediastinal lesions.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
7/82. Benign symptomatic thymic tumors.Benign tumors of the thymic gland are relatively rare. Although most of these lesions are asymptomatic in nature, they may result in respiratory distress. This report describes 2 cases of benign thymic tumors presenting with respiratory symptoms that resolved after operative excision.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
8/82. US and CT diagnosis of a twisted lipomatous appendage of the falciform ligament.Pathologic conditions of the falciform ligament leading to surgical intervention are extremely uncommon. We report a case of twisted lipomatous appendage of this ligament, demonstrated by US and CT. To our knowledge, there have been no previous reports of this entity. The extraperitoneal nature of the lesion was found by realtime sonography, but CT only was able to characterize its lipomatous nature and relationship with the falciform ligament. This lesion should be considered in the differential diagnosis of intra-abdominal focal fat infarction (IFFI), a recent vocable essentially regrouping infarction of omentum and epiploic appendages.- - - - - - - - - - ranking = 2keywords = nature (Clic here for more details about this article) |
9/82. lipoma arborescens of the knee: a case report.lipoma arborescens is a rare intraarticular lesion of unknown etiology. We describe the radiographic, computerized tomographic, and magnetic resonance (MR) imaging characteristics of lipoma arborescens in a 17-year-old boy presenting with chronic painful swollen knee. Histologic examination after surgical synovectomy confirmed the diagnosis of lipoma arborescens. The fatty nature and frond-like appearance of this lesion can be demonstrated on imaging studies, especially MR imaging. Open synovectomy is curative in most cases. Although lipoma arborescens is rare, it is important to recognize and differentiate it from other synovial lesions by MR imaging.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
10/82. lipoma of the liver associated with hepatocellular carcinoma and polycystic liver disease.BACKGROUND/AIMS: We report on a patient with lipoma of the liver associated with hepatocellular carcinoma (HCC) and polycystic liver disease. methods: Clinical features of a patient with lipoma, HCC and polycystic liver disease are presented. A right liver lobectomy was performed. RESULTS: Histological examination revealed a poorly differentiated multicentric HCC, as well as bile duct cysts and an encapsulated tumor of adipose tissue. The postoperative course was uncomplicated. The patient died 4 years after surgery with local recurrence of HCC. CONCLUSION: We find the report to be of interest because of the unusual nature of this association and the low prevalence of lipoma of the liver. The association of liver polycystic disease with other types of tumor is discussed and the literature dealing with lipomas of the liver reviewed.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
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