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

A fast-growing angiosarcoma caused incapacitation of a boy and death in a period of three months. The growth of the tumor was well documented by a series of echocardiograms. The heart was well encased by a thick layer of purplish vascular neoplasm enveloped mostly by thin pericardium, with some additional few foci of extracardiac metastasis. The heart weighed 2,000 gm. It is worthy to note that another cause of an echo-free space may be the presence of a pericardial tumor, rather than pericardial effusion.
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PMID:Pericardial angiosarcoma simulating pericardial effusion by echocardiography. 56 91

An elderly patient is presented who developed a fatal angiosarcoma of the hip about ten years after surgery and radiation for a uterine malignancy. She developed a metastasis of the uterine tumor, requiring additional radiation, which led to aseptic necrosis of the hip and chronic joint and soft tissue infection of the hip from a joint prosthesis. Subsequently she developed chronic lymphedema of the hip and finally the cutaneous angiosarcoma in this area. Any or all of these factors might bear a causative relationship to the angiosarcoma, but none can be proved.
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PMID:Cutaneous angiosarcoma of the hip. 56 78

The following is a description of the diagnostic structural features in three neoplasms in which we diagnosed: primary intraparenchymal brain sarcoma. One appeared to have arisen de novo from the mesenchymal components of the brain parenchyma and was labeled fibrosarcoma. A second case, having mixed features of meningioma and fibrosarcoma, may represent an instance of sarcomatous changes in a prexisting intraparenchymal meningioma. The third sarcoma's ultrastructural characteristics were those of embryonal capillaries and a designation of hemangiosarcoma is proposed for that one. An angiographic, preoperative diagnosis of meningioma was suggested in all three instances. Two of the patients died a few weeks after craniotomy and the third one is alive and well eighteen months after resection of the neoplasm.
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PMID:Primary brain sarcomas: light and electron microscopic features. 56 26

A case of malignant hemangioendothelioma (angiosarcoma) of the submaxillary salivary gland is reported and its microscopic and ultrastructural features are described and compared to previous reports of angiosarcoma arising in other locations. These tumors may often contain areas of solid sheets of cells without vascular characteristics and may be confused with poorly differentiated carcinoma or other sarcomas. The ultrastructural features of angiosarcoma are compared to other poorly differentiated tumors. It is concluded that the ultrastructural features of angiosarcoma are distinctive and aid in the diagnosis of this neoplasm.
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PMID:Malignant hemangioendothelioma (angiosarcoma) of the salivary gland: an ultrastructural study. 57 56

Angiosarcoma of the heart is a rare tumor infrequently diagnosed ante mortem. The clinical presentation is usually that of pericarditis or congestive heart failure. This case report illustrates the contribution of echocardiography in suggesting the diagnosis.
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PMID:Angiosarcoma of the heart. Diagnosis by echocardiography. 57 83

Angiosarcomas are uncommon tumors of the skin and soft tissues, but occur in endothelial cells of almost any internal organ. When they occur in the skin, the head and neck are the most common sites of origin. Nothing is pathognomonic about their clinical presentation, and the pathologic diagnosis can only be established by biopsy. The frequent multicentric nature of the tumor and propensity for extensive subcutaneous spread require wide treatment fields, whatever the modality of therapy, and account for the low survival reported. Four cases and their outcome are reported, with only one patient achieving an apparent cure following irradiation therapy. Based on experience and extensive review of the literature, a best therapeutic approach cannot be recommended. Since the outlook for cure is so unfavorable, there appears to be a need for cooperative studies using surgery, irradiation, and perhaps, chemotherapy.
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PMID:Angiosarcoma of the head and neck. 57 45

When needle biopsies are done on all palpable changes in the breasts, some sarcomas of the breast can be found. The cytomorphology of this mesenchymal tumor is described and the differential cytology is discussed. In some of our cases the relative content of DNS of the cell nuclei in the smear was determined by quantitative cytophotometry in a Feulgen Stain. It was found that the DNS values of lymphosarcoma and spindle cell stromal sarcoma were within the norm of class 2C to 4C. The DNS content of angiosarcoma and polymorphous stromal sarcomas showed wide variations up to class 8 C. The result is discussed in view of automated cytological diagnosis.
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PMID:[Needle biopsies of sarcomas of the breast: cytomorphology and DNA cytophotometry (author's transl)]. 57 86

Results of the ultrastructural study of one of two cases of splenic angiosarcoma established the blood vessel origin of this tumor. Fifty-three previously reported cases were reviewed. None of the 55 patients had a history of exposure to thorium dioxide, vinyl chloride, or arsenic, which are known to be associated with hepatic angiosarcoma and other tumors. A comparison of the splenic and hepatic angiosarcomas showed that tumors not associated with exogenous material frequently involve the spleen and liver simultaneously, and that tumors associated with thorium dioxide, vinyl chloride, or arsenic commonly involve the liver with sparing of the spleen.
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PMID:Angiosarcoma of the spleen: a report of two cases and review of the literature. 58 38

In a review of cases of neoplasia in dogs seen at The Animal Medical Center during a 6-year period, 20 cases of primary urethral tumors were found. The majority of these cases were in older dogs (av abe, 10.4 years) and females (18/20). The most common clinical signs were hematuria and stranguria. Nineteen of the 20 tumors were diagnosed clinically, and the most consistent and useful diagnostic method was pneumocystography-cystography, with voiding urethrography. Of the 5 tumor types (squamous cell carcinoma, transitional cell carcinoma, adenocarcinoma, hemangiosarcoma, and embryonic rhabdomyosarcoma), squamous cell carcinoma was the most common (12/20). Metastasis occurred in 6 of the 20 dogs. Because of metastasis to regional lymph nodes and diffuse extent of the tumor in the urethra in many of the dogs, a caudal abdominal approach for surgical excision is recommended if treatment is attempted.
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PMID:Primary urethral tumors in dogs. 64 87

The case of a 47-years-old woman with malignant hemangioendothelioma growing from the wall of the right main bronchus is reported. Due to its endobronchial growth, the tumor had led to early obliteration of the bronchus with atelectasis of the right lung, perforated the bronchial wall and had grown up in the mediastinum to the size of 8,5 X 7 X 5 cm bounded by a wall of fibrous tissue. The development of the disease had required about 3 month only on the whole. Exstirpation of the tumour had not been advisable owing to its unfavourable location. In spite of the considerable size of the tumour, no metastases have been founded in the autopsy.
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PMID:[Development of the disease and autopsy findings in a case of malignant hemangioendothelioma of the right main bronchus (author's transl)]. 65 35


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