Cases reported "Lipoma"

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1/93. teratoma in the region of adrenal gland: a unique entity masquerading as lipomatous adrenal tumor.

    BACKGROUND: The aim of this study was to establish the clinical and pathologic aspects of 3 atypical lipomatous lesions in the region of the adrenal gland. methods: Three young Chinese patients (ages 18, 18, and 37 years) were seen for nonspecific back pain. Radiologic examination revealed a lipomatous lesion in the region of the adrenal gland, and hormonal assessment was normal. Calcification was noted in 2 of the 3 lesions. adrenalectomy was performed because of the size (diameter 7.5, 10, 11 cm) of the tumors with suspected local symptoms. RESULTS: On gross examination 2 tumors were cystic and 1 was solid. In all 3 patients the diagnosis was mature teratomas. The tumors were composed of mature tissues arising from more than 1 germinal layer. There was no evidence of immature elements or malignancy. adipose tissue was the predominant component in the tumors. There was no evidence of recurrent diseases in all these patients during follow-up. CONCLUSIONS: To our knowledge, this is the first report of teratomas occurring in the adrenal region. teratoma should clinically and radiologically be included in the differential diagnoses of lipomatous adrenal lesions. Excision of the teratoma is advocated.
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keywords = adrenal
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2/93. Lipoma of the adrenal gland.

    A rare case of a lipoma of the adrenal gland is reported with a review of the literature. The tumor was incidentally found at autopsy in a 50-year-old man who died from severe head trauma after a traffic injury. At autopsy, an oval-shaped, soft yellow nodule measuring 1.1 cm in diameter was found in the right adrenal cortex. Histological examination revealed a lesion consisting of mature adipose tissue partially surrounded by a thin fibrous capsule. On serial sections there was no evidence of hematopoiesis nor of adrenal medulla cells. To the best of our knowledge, this is the eighth case described in the English literature. With the increasing use and the high resolution of modern imaging techniques, these unsuspected adrenal masses may become more prevalent.
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ranking = 0.66746902248769
keywords = adrenal, cortex
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3/93. epilepsy and perisylvian lipoma/cortical dysplasia complex.

    Intracranial lipomas are congenital malformations composed of mature adipocytes. They are usually located in the midline, particularly in the pericallosal region, a hemispheric location accounting for only 3 to 7% of cases. review of the literature found 21 previous cases of hemispheric lipoma. Although hemispheric cerebral lipomas are rare, association with epilepsy appears to be frequent. We have recently studied two patients in whom epilepsy was the first clinical manifestation of hemispheric cerebral lipoma in the sylvian region. The patients presented with simple motor partial seizures as the first manifestation of the lesion. Neurological examination was normal. MRI disclosed in both cases a lesion involving the sylvian fissure with characteristics of the lipid signal. MRI also demonstrated abnormalities involving the cerebral cortex in the vicinity of the lesion (pachygyria-like aspect). Partial excision of the lesion was achieved in one patient but was followed by a worsening of seizures and neurological condition (hemiparesis). According to the literature, the prognosis for epilepsy in patients with hemispheric lipoma appears good. Several other arguments support non-surgical management: the lesion is benign and can be identified with a high degree of certainty by imaging; surgery is technically difficult due to adherence to adjacent vascular and cerebral structures and hypervascularity; location near functional brain tissue increases the risk of postoperative sequelae. In addition, mechanisms of epilepsy probably involve vascular and cortical dysplasic abnormalities. In consideration of the complexity of the lesion, hemispheric lipomas are more appropriately classified with localized cortical malformations rather than as simple extracerebral malformations.
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ranking = 0.00080235582102589
keywords = cortex
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4/93. A case of myxoid adrenocortical carcinoma with extensive lipomatous metaplasia.

    We report a combination of unusual myxoid change and extensive lipomatous metaplasia of an adrenocortical carcinoma. The patient was a 38-year-old man with hypertension and heart failure. Radiographic examination revealed the presence of a left adrenal tumor, and adrenalectomy was performed. The tumor weighed 380 g and appeared encapsulated. The cut surface was predominantly gelatinous. Histologically, the tumor was composed of atypical round cells with eosinophilic to vacuolated cytoplasm. The tumor was diagnosed as adrenocortical carcinoma. The stroma accumulated copious mucinous material. In addition, individual to nodular mature adipocytes were admixed throughout the tumor. The transition from carcinoma cells to mature adipocytes was recognized. Myxoid change is a very rare phenomenon in adrenocortical carcinoma, and only 10 similar cases have been reported to date. Lipomatous metaplasia is another peculiar feature of adrenocortical lesions that has been reported only in benign conditions. To our knowledge, this is the first reported case of adrenocortical carcinoma with lipomatous metaplasia.
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ranking = 0.16666666666667
keywords = adrenal
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5/93. central serous chorioretinopathy associated with adrenal myelolipoma.

    BACKGROUND: We describe a case of central serous chorioretinopathy associated with a large adrenal myelolipoma. history AND SIGNS: A 55-year old man was admitted to our clinic complaining for metamorphopsia and blurred vision in his left eye. Standard ophthalmologic examination and fluorescein angiography established the diagnosis of central serous chorioretinopathy (CSC). Due to the presence of arterial hypertension, we proceeded to a thorough systemic clinical and laboratory investigation. THERAPY AND OUTCOME: Clinical and laboratory investigation disclosed a large mass in the right abdominal region. magnetic resonance imaging showed that this mass was located superior to the right kidney, in the right adrenal gland, compressing the kidney and the liver. Surgical excision of the mass was done one month later. Histological examination revealed an adrenal myelolipoma. Improvement of CSC was recorded one month after surgery with complete remission two months later. Additionally, systemic blood pressure and increased urinary steroids concentration before the operation returned to normal in the late postoperative period. CONCLUSIONS: CSC pathogenesis is not well understood. Many factors are implicated in this disease. Hypercortisolism and sympathetic activity play a crucial role in the pathogenesis of CSC. This is the first report of CSC in a patient with a benign tumor of the adrenal gland without Cushing's syndrome.
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keywords = adrenal
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6/93. Hibernoma arising from the adrenal gland.

    Hibernomas, or "brown fat" tumors, arising from the adrenal gland, have not been reported previously. These benign lesions consist of brown fat and demonstrate inert features. The most common anatomic location of these tumors is in the adipose tissue of the thigh, shoulder, chest, and back. We describe a hibernoma within the adrenal gland in close association with a myelolipoma that was excised for its solid enlarging characteristics.
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keywords = adrenal
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7/93. Combined adrenal adenoma and myelolipoma in a patient with Conn syndrome. Case report.

    Adrenal myelolipoma is an uncommon benign tumor usually discovered by chance in patients with hypertension, obesity, arteriosclerosis or cancer. The association with adrenocortical endocrine dysfunctions is rare. We report herein an unusual case, the second in the literature to the best of our knowledge, of combined adrenal adenoma and myelolipoma in a patient with Conn syndrome.
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ranking = 0.41666666666667
keywords = adrenal
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8/93. Adrenal myelolipoma associated with congenital adrenal 21-hydroxylase deficiency.

    The occurrence of adrenal myelolipomas is reported in an untreated patient with congenital adrenal 21-hydroxylase deficiency. laparotomy demonstrated the presence of two lesions, a large tumor which arose from an ectopic adrenal cortex and a smaller tumor in the left adrenal gland. Six cases of adrenal myelolipomas and congenital adrenal hyperplasia have been reported in the literature. All patients were associated with excessive ACTH secretion for a long period of time. The relative frequency of this association, coupled with the observation by Selye and Stone (Am J Pathol 26:211, 1950) that anterior pituitary extracts cause myelolipomatous changes in rats, may indicate a possible role for ACTH in the development of myelolipomas.
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ranking = 0.83413568915436
keywords = adrenal, cortex
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9/93. Parosteal lipomas: a new perspective.

    Parosteal lipomas, benign adipose tissue tumors situated directly on bone cortex, are unusual neoplasms that appear to emerge from multidirectional mesenchymal "modulation" within the periosteum. These tumors have been described as "periosteal lipomas", "chondrolipomas of soft tissue" and "lipomas of nerves" but they are most commonly believed to originate from the periosteum. Although over 100 of such tumors have been described in the literature, they have not been the subject of a comprehensive review, nor their potential for chondroid modulation and enchondral ossification emphasized. A review of 14 parosteal lipomas from the Bone Tumor Registry, Armed Forces Institute of pathology, indicates these tumors are frequently associated with chondroid and/or osseous modulation, which permits subclassification into 4 distinct variants. Each of the 4 subtypes (I: No Ossification; II: Pedunculated Exostosis; III: Sessile Exostosis; IV: Patchy Chondro-Osseous Modulation) is illustrated to demonstrate the morphologic basis for radiologic/pathologic correlation and subclassification. A brief overview of the literature and pathogenesis of this unusual lesion is presented and discussed.
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ranking = 0.00080235582102589
keywords = cortex
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10/93. Asymptomatic myelolipoma of the adrenal.

    myelolipoma of the adrenal gland is a rare benign tumour which seldom produces symptoms unless it attains considerable size or hemorrhages into itself. Histologically the tumor is composed of varying proportions of fat and bone marrow elements. We present a case of a male child, with homozygous beta thalassemia and asymptomatic myelolipoma.
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ranking = 0.41666666666667
keywords = adrenal
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