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Query: UMLS:C0027651 (tumor)
 685,946 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Case presentation : Multiple tumor nodules in both lungs, identified by biopsy and necropsy, in a 48 year old woman, 8 years after radiological discovery ; death due to respiratory failure after long tolerance ; peculiar angio-leiomyomatous type pulmonary tumors. This purely pulmonary tumor disease is difficult to understand ; the most probable hypothesis envisaged is that of hamartomatosis ; comparison with certain general dysplastic disease is possible, and in particular Bourneville's disease and lymphangio-myomatosis.
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PMID:[Multiple angioleiomyomas of both lungs. Probable hamartomatous tumors. Very late death due to respiratory insufficiency]. 97 Aug 1

A retrospective study of bioptic material was used to design the following outline of a histological classification of epithelial skin tumours tentatively compared with handbooks published by the WHO (1) and AFIP (2): I. Tumour-like changes: 1. senile verruca (mixed, acanthotic, melanoacanthotic, hyperkeratonic, reticular, inverted). 2. Virus verrucosities (v. vulgaris, v. plana, c. accuminatum, molluscom contagiosum). 3. Hamartogenic verrucosities (naevus verrucosus, n. comedonicus, fibroepithelial papilloma. 4. Genetically undefined verrucosities (acanthosis nigricans, light cell acanthoma, verrucous dyskeratosis). 5. Cysts (atheroma, epidermoid cyst, dermoid cyst, others). 6. Unclassified. II. Precanceroses: 1. Pseudoepitheliomatous hyperplasis, 2. keratosis senilis, 3. Radiation dermatosis, 4. Unclassified. III. Epithelial tumours A. From surface epithelium 1. Spinocellular carcinoma (basic type, anaplastic, adenoid, sarcomatoid, clear cell carcinoma, intraepidermal). 2. Basocellular carcinoma: a) varieties derived from surface epithelium (intraepithelial, superficial, solid, cystic, invasive), b) varieties with adenoid features (cylindromatous, fibroepithelia), c) varieties with trichoepithelial features (keratinizing, pigment-type, clear cell type), d) naevus varieties (basocellular naevi). 3. Spinobasocellular carcinoma. 4. Unclassifiable. B. Sweat gland tumours: 1. syringocystadenoma papilliferum, 2. hidradenoma papillare, 3. nodular hidradenoma (eccrine spiradenoma, eccrine acrospiroma, myxochondroepithelioma, myoepithelioma, mucinous epithelioma), 4. syringoma, 5. eccrine cylindroma, 6. hidrocystoma, 7. eccrine poroma, 8. carcinomas (so called extramammary Paget carcinoma), 9. unclassifiable. C. Sebaceous gland tumours: 1. adenoma sebaceum, 2. carcinoma sebaceum, 3. quasi tumours (naevus sebaceus, Pringle's hamartoma, steatocystoma multiplex, hyperplasia), 4. unclassifiable. D. Trichoepithelial tumours: 1. trichofolliculoma, 2. follicular poroma, 3. keratoacanthoma, 4. tricholemoma, 5. pilomatrixoma, 6. trichogenic adnexal tumour, 7. trichoepithelioma, 8l unclassifiable.
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PMID:[Epithelial tumor-like changes, precancerous conditions and skin neoplasms (standardization study)]. 100 15

Two patients with tuberous sclerosis were examined angiographically. In one, direct left carotid angiography showed a contralateral shift of the anterior cerebral artery and lateral displacement of the middle cerebral artery. On the lateral series, increase in the sweep of the anterior cerebral artery as well as stretching of the opercular branches of the middle cerebral artery were noted in the early arterial phase. In the later arterial phase, there was marked hypervascularity, with the contrast substance temporarily pooling in small, rounded collections. In the mid-arterial phase of the second case, pooling of the the contrast medium within the tumor and many small, berry-like outpunchings were noted. There was no evidence of early venous drainage in either case.
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PMID:Cerebral angiographic changes associated with tuberous sclerosis. 112 78

A case of renal cell carcinoma and angiomyolipoma occurring in the same kidney in a patient without stigmata of tuberous sclerosis is reported. This case was managed as malignant renal tumor, and the patient underwent radical nephrectomy. Urologic and angiographic literature regarding angiomyolipoma is reviewed, and we find the neovascularity of this benign tumor is only rarely distinguishable from malignant renal tumor.
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PMID:Angiomyolipoma and renal cell carcinoma in same kidney. 118 56

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.
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PMID:Renal angiomyolipoma: two varieties. 120 32

Electron microscopic study of bilateral renal angiomyolipoma in a case of tuberous sclerosis showed two cell types: smooth muscle cells and fibroblasts. There were no tubular or glomerular elements within the tumor mass. To our knowledge this study represents the first ultrastructural demonstration of smooth muscle cells occurring in the renal lesions of this complex.
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PMID:Renal angiomyolipoma in a case of tuberous sclerosis, an electron microscopy study. 122 Jun 72

A patient with tuberous sclerosis and angiomyolipoma of both kidneys is described in whom both tumors demonstrated associated calcification. This finding has not been previously stressed in the literature and is important in that ignorance of its occurence in this tumor might result in an error of diagnosis and nephrectomy in a patient who can ill-afford the loss of renal parenchyma.
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PMID:Calcification in an angiomyolipoma: a case report. 123 91

An unusual case of a patient with tuberous sclerosis who presented initially with renal symptoms is presented. Electromicroscopic observations showed the smooth muscles to contain myofilaments and an unusual amount of glycogen. Although the response of the tumor vessels to epinephrine in angiomyolipoma is considered similar to that of renal cell carcinoma in that no vasoconstriction occurs, the reverse occurred in our case. A thin, lucent cleavage line around portions of the periphery of the angiomyolipoma was also noticed. Isolated angiomyolipoma in patients without tuberous sclerosis is difficult to differentiate from renal cell carcinoma; therefore, radical nephrectomy is usually the treatment of choice. Angiomyolipomas associated with tuberous sclerosis are easier to diagnose and are multiple and bilateral; therefore, a more conservative approach usually is indicated.
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PMID:Renal angiomyolipoma. 125 Dec 48

A case is presented of an infant with tuberous sclerosis admitted with status epilepticus. When the seizures were controlled, it was found that the child was hypertensive. A large renal tumor and an abdominal aortic aneurysm was found during the hypertensive evaluation. She underwent abdominal aortic aneurysm resection and radical nephrectomy, and vascular continuity was re-established sucessfully with a Dacron prosthesis. The technique is illustrated. The reconstruction is patent one year following reconstruction. The etiology of the aneurysm is discussed.
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PMID:Abdominal aortic aneurysm and renal hamartoma in an infant with tuberous sclerosis. 127 56

Five cases of hepatic tumor deemed unresectable by conventional techniques are presented to illustrate the potential benefit offered by complete hepatic vascular exclusion (Pringle maneuver associated with inferior vena cava clamping below and above the liver). The most extensive and difficult liver resections may be achieved, with possible venous reconstruction, if the clamping period is not interrupted. Hepatic vascular exclusion may exceed one hour, up to 85 minutes in this series, with a good liver tolerance, in the absence of preoperative liver dysfunction. The advantages and disadvantages of the ex situ extracorporeal liver resections performed under similar circumstances are discussed. The authors consider that the role of ex situ liver procedures should be very limited.
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PMID:[Is ex situ surgery of the liver useful for difficult hepatic resections?]. 128 96


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