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

Angiomyolipoma is an uncommon benign tumor of the kidney. The tumor is composed of fat, smooth muscle, and blood vessels. The same pathological entity can appear in two clinically different forms, with or without tuberous sclerosis. We present two cases of renal angiomyolipomas with unusual manifestations. One was associated with tuberous sclerosis and both had the presentation of acute abdomen. Case one presented with epilepsy, angiofibroma, subungual fibroma, periventricular calcification, and bilateral renal angiomyolipomas. Tuberous sclerosis is characterized by these findings. Both cases had spontaneous hemorrhage with hypovolemic shock. Massive hemorrhage resulting in shock is uncommon and the incidence has been estimated to be about 10 per cent. In fact, many angiomyolipomas are clinically occult. The size of the tumor correlates well with the presence or absence of symptoms which include microhematuria, flank pain, hypertension and urinary tract infection. Abdominal CT is the preferred modality for diagnosis of angiomyolipoma. The most important finding is the presence of an intrarenal tumor with fat component which is recognized as a relative low density on CT. Our patients were hospitalized under the impression of angiomyolipoma after the CT study. In addition, the CT defined either the size of the tumor or the extension of the hemorrhage. Although many believe that renal angiography is not sufficient by itself to establish the diagnosis of angiomyolipoma, occasionally it is mandatory in the management of the tumor. The management is decided by two factors, the size of tumor and the clinical presentation. The attitude of management should include conservative treatment with regular follow-up, selective arterial embolization, enucleation, and partial or total nephrectomy.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Unusual presentations of angiomyolipoma]. 179 71

A retrospective study was done to determine the presence of abdominal angiostrongyliasis in Nicaragua. Twelve cases of this parasitic disease were found among 48 visceral specimens: small intestine, liver and testes. The patients with intestinal lesions presented symptoms of an acute abdomen, and in some instances, a tumor-like mass was palpated in the lower right quadrant. A thickening of the intestinal wall accompanied by necrosis and perforation were the most important macroscopic findings. One patient with hepatic localisation of Angiostrongylus costaricencis displayed a clinical picture of visceral larva migrans-like syndrome. The chief laboratory findings were leukocytosis and eosinophilia. The histopathological examination showed granulomas and heavy eosinophilic infiltration around the eggs and larvae of A. costaricencis. Also, an adult worm was seen in one biopsy.
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PMID:Abdominal angiostrongyliasis in Nicaragua: a clinico-pathological study on a series of 12 cases reports. 182 56

Cystic lymphangioma is an uncommon tumor of the small bowel. A case in the ileum in a 3 years old boy is described. The clinical picture was with 10 months of progression with constipation, abdominal pain associated with meals and finally an acute abdomen suggestive of appendicitis. A conservative surgical treatment with segmental intestinal resection and termino-terminal anastomosis was curative. The anatomopathological findings are described and a revision of the literature is done.
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PMID:[Cystic lymphangioma of the ileum. A case report]. 186 48

Concept, classification, frequency and predominant factors of abdominal pregnancy, were reviewed. The case of a patient 32 years old, from Hospital General Tacuba, ISSSTE; with a history of secondary sterility of seven years duration, win an abdominal pregnancy with symptomatology mainly digestive; she was under hypovolemic shock, acute abdomen, but with an ultrasonographic study showing intrauterine pregnancy and a tumor in right iliac fossa, which confounded the preoperative diagnosis. Exploratory laparotomy, was done. An alive product was found 14 to 16 years old, and living the placenta in situ. Evolutions was favorable. In the final comment the clinical picture, the diagnostic media, the management possibilities for the placenta and hemorrhage, are mentioned.
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PMID:[Abdominal pregnancy. Surgical emergency]. 206 6

The group B streptococcus is an opportunistic pathogen that causes a variety of serious infections including bacteremias, puerperal sepsis, and neonatal meningitis. Group B streptococcal infections of muscle are rare. We report here an unusual case of group B streptococcal pyomyositis. Pyomyositis arises predominantly from infections caused by Staphylococcus aureus and, occasionally, Streptococcus pyogenes. Because of the rarity of pyomyositis in temperate climates, the common lack of localizing signs or symptoms, and the frequently negative blood cultures, considerable delay often precedes the diagnosis of pyomyositis; in fact, the infection has been initially misdiagnosed as muscle hematoma, cellulitis, thrombophlebitis, osteomyelitis, or neoplasm. Diagnosis may be greatly aided by radiologic techniques that can demonstrate the sites of muscle enlargement and the presence of fluid collections. The response to antibiotics is usually rapid, but resolution of the infection may require aspiration of deeply situated muscle abscesses. This report describes a diabetic patient with an unusual presentation of pyomyositis that mimicked an acute abdomen.
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PMID:A case of group B streptococcal pyomyositis. 204 67

Angiosarcoma of the spleen is a rare tumor with a very poor prognosis. Review of the world literature reveals only 57 reported cases of this neoplasm. Sixteen of these presented with an acute abdomen secondary to splenic rupture. Patients with this tumor have a mean survival time of 14.4 months after detection, and this decreases to 4.4 months after splenic rupture. The only rational treatment is splenectomy prior to splenic rupture. This paper describes another case presenting as spontaneous splenic rupture.
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PMID:Spontaneous splenic rupture secondary to angiosarcoma. 219 45

Carcinoid tumor of the appendix is the most common neoplasm of the gastrointestinal tract in childhood and adolescence. Sufficient long-term follow-up data after surgical treatment are not currently available for patients diagnosed during the first two decades of life. From 1936 to 1988, 23 patients were observed at this institution with histologically confirmed carcinoid tumors involving the vermiform appendix. In contrast to the adult experience, in which the tumor is most commonly encountered as the result of an incidental appendectomy, 18 of these patients presented with signs and symptoms of an acute abdomen directing the surgeon to the appendix. In the other five cases, surgery was performed for other reasons. Median age at presentation was 13.0 years (range, 6 to 20 years). Fourteen patients were female, nine were male. Simple appendectomy was the initial procedure for all patients. Tumor size ranged from "microscopic" to 2.5 cm in largest dimension. Three patients subsequently underwent right hemicolectomy, and one patient had removal of a residual appendiceal stump, but no residual or metastatic tumor tissue was found in any of the resected specimens. Nineteen patients underwent simple appendectomy alone. Eighteen available specimens were reviewed at the time of this study for confirmation of histology and degree of invasion. The tumor invaded to the serosa in nine of 23 (39%). The mesoappendix or periappendiceal fat was involved in seven of 23 (30%). Vessel invasion was not noted in any specimen. Our median follow-up time was very long, being 26 years (range, 9 months to 51 years). No patient has had evidence of recurrent or metastatic disease.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Carcinoid tumor of the appendix in the first two decades of life. 226 61

Polyagglutination is a rare disorder which has been associated with intravascular hemolysis (Levene et al.: Transfus Med Rev 2:176-185, 1988). In this condition cryptantigens exposed on the red blood cell membrane agglutinate with compatible sera and with lectins. A 76 year-old man with an acute abdomen due to a perforated tumor of the colon and severe fatal intravascular hemolysis is described. Th polyagglutination of the red blood cells was found.
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PMID:Th polyagglutination with fatal outcome in a patient with massive intravascular hemolysis and perforated tumor of colon. 239 3

A case of primary right ureteral squamous cell carcinoma with intraperitoneal invasion was studied. The patient was a 38-year-old male with chief complaints of right lumbago and gross hematuria. He was admitted to our clinic suspected of having calculi. However, the radiogram was negative. As the patient was suffering from severe hypogastric pain, indicating acute abdomen, an investigative celiotomy was performed. The tumor that was subsequently revealed formed a mass engulfing the furcation of the right internal and external iliac arteries, ureter, ileum and sigmoid colon. As a radical resection was considered impossible, as much of the tumor as possible was excised and a colostomy was performed. After the operation, a regimen of polypharmacy, including bleomycin, was administered against the residual tumor. This therapy has proved to be remarkably effective. At present, the patient is under regular medical observation, and the postoperative course has been favorable.
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PMID:[A case of primary right ureteral squamous cell carcinoma with intraperitoneal invasion]. 248 73

We made a retrospective analysis of 43 cases of primary tumor of the small intestine, 28 benign and 15 malignant, diagnosed and treated in our hospital over a period of 18 years. A preoperative diagnosis was reached in 13 cases (30%), while in 37.2% the tumor was a casual finding during operation by other methods. The remaining 32.5% debuted as acute abdomen and were an emergency surgical indication. Simple tumoral resection was practiced in 19 cases (44.1%) of benign tumor, intestinal resection with end-to-end anastomosis in 22 cases (51%) and only biopsy in two cases (4.6%). Coadjuvant chemotherapy was given to five patients (11.5%) and radiotherapy to one (2.3%). The one-year survival for malignant tumors was 73%, and only 18% (2 cases) survived more than 5 years after the operation).
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PMID:[Primary tumors of the small intestine]. 261 51


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