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Results for “Retroperitoneal Neoplasms”

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At least 541 records · Page 30Linked to original sources
PubMed1988

MR imaging strategies in primary and metastatic malignancy.

This article gives the rationale of the indications for the use of MRI in the evaluation of primary and metastatic malignancies of the neck, chest, abdomen, male and female pelvis, and musculoskeletal system. The imaging protocols for each of these areas is also included.

Abdominal Neoplasms↗
PubMed1987

Mesenchymal neoplasms associated with type D retroviruses in macaques.

The type D subfamily of retroviruses contains five distinct viruses which are found in New and Old World monkeys. The retroviruses found in Old World macaque (genus Macaca) monkeys are exogenous to the species and upon injection induce a fatal simian acquired immune deficiency syndrome (SAIDS). Two serotypes of type D virus, SAIDS retrovirus types 1 and 2 (SRV-1 and SRV-2), are found in captive macaques in primate centres in the United States. In addition to SAIDS, two neoplasms, retroperitoneal fibromatosis (RF) and subcutaneous fibrosarcomas (SF), have been found in macaques with type D retrovirus-induced SAIDS. Only SRV-2 is found in association with RF, and only about 35% of SRV-2-infected macaques develop RF. SF is found in association with both serotypes, but less than 5% of infected monkeys develop SF. The RF in macaques is potentially a model for human disease since the lesions in macaques are similar to the idiopathic RF described in humans. Thus far, RF has not been found in species other than macaque or man. The complete sequence of three type D retroviruses is known. Importantly, no oncogenes are present in the viral genome. Therefore, the mechanisms for tumour induction which involve immunosuppressive or genetic properties of the virus that are distinct from classic oncogenes must be considered.

Animals↗
PubMed1986

[Pseudotumoral retroperitoneal tuberculosis. Apropos of a case].

A case is reported of pseudotumoral retroperitoneal tuberculosis with invasion of left supraclavicular glands. Relative diagnostic efficacy of ultrasound and CT scan imaging is discussed as well as the differential diagnosis of this exceptional lesion. Exploratory procedures suggested with this type of picture are ultrasonography. CT scanning and possibly guided needle puncture biopsy to avoid surgical exploration. The value of the scanner for follow up review of results of antituberculosis treatment is emphasized.

Antitubercular Agents↗
PubMed1987

Massive retrogastric bleeding caused by neurofibroma. Case report.

A case of massive retrogastric bleeding from a neurofibroma arising from the gastric wall is described. The tumour was removed without opening the gastric mucosa. The possibility of neurofibroma should be borne in mind when there is unexplained bleeding from the digestive tract or the intraperitoneal or retroperitoneal space, particularly in patients with von Recklinghausen's disease.

Aged↗
PubMed1987

[Possibilities of CT typing of liposarcomas].

Twenty-nine cases of liposarcomas were examined by CT; in 60% of them the CT finding was that of an ill defined, often large mass with content uniformly dishomogeneous and CT numbers ranging from -40 to +28 H.U. Diagnosis of liposarcoma is often possible when this finding is recognized in a mass of the thigh or retroperitoneum where these tumors frequently arise. Authors report differential diagnosis between liposarcomas and other lipomatous tumors such as angiomyolipoma of the kidney (when it is large and only attached to the kidney by an inconspicuous pedicle) and intramuscular lipomas (50% of them are located in the thigh).

Diagnosis, Differential↗
PubMed1986

Primary retroperitoneal tumours and cysts.

The authors give a summarizing report on retroperitoneal tumours and cysts. They review the origin and classification of tumours and cysts, their diagnostic and differential diagnostic possibilities as well as the therapeutic measures. Finally, their own 3 cases are reported.

Adult↗