The Experts below are selected from a list of 297 Experts worldwide ranked by ideXlab platform
Oluwole Fadare - One of the best experts on this subject based on the ideXlab platform.
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perivascular epithelioid cell tumor pecoma of the uterus an outcome based clinicopathologic analysis of 41 reported cases
Advances in Anatomic Pathology, 2008Co-Authors: Oluwole FadareAbstract:The uterus and Retroperitoneum have emerged as the most frequently reported anatomic sites of origin of perivascular epithelioid cell tumors (PEComas), a poorly defined neoplasm that is characterized by varying amounts of spindle and epithelioid cells with clear to eosinophilic cytoplasm that displa
Haruki Fuse - One of the best experts on this subject based on the ideXlab platform.
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a malignant solitary fibrous tumor in the Retroperitoneum
International Journal of Clinical Oncology, 2008Co-Authors: Mamoru Fukuda, Yoshiaki Imamura, Haruki FuseAbstract:Solitary fibrous tumor in the Retroperitoneum is rare. We report a case of a malignant solitary fibrous tumor in the Retroperitoneum, with a lymph node metastasis, in a 48-year-old-woman. Computed tomography and magnetic resonance imaging indicated a mass in the retroperitoneal space beside the left kidney, with a swollen paraaortic lymph node. Surgical findings revealed a circumscribed tumor in the Retroperitoneum. A pathohistological examination revealed two separate components: a benign hypocellular area rich in collagen fibers and a malignant hypercellular area with nuclear atypia. The histological finding for the lymph node was the same as that in the hypercellular area. Because of these findings, the mass was diagnosed as malignant solitary fibrous tumor. Only surgical treatment was performed, and the patient is alive without recurrence 2.5 years after the surgery. Immunohistochemical staining for p53 was positive in the malignant component but negative in the benign area, indicating that the expression of p53 may play a critical role in the malignant transformation of solitary fibrous tumor.
Andrew J Leroy - One of the best experts on this subject based on the ideXlab platform.
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imaging evaluation of amyloidosis of the urinary tract and Retroperitoneum
Radiographics, 2011Co-Authors: Akira Kawashima, Wade G Alleman, Naoki Takahashi, Bernard F King, Andrew J LeroyAbstract:Classification of clinical amyloidosis and the spectrum of clinical and imaging findings of loalized and systemic amyloidosis involving the urinary tract and Retroperitoneum are described, with representative cases and specific imaging characteristics that, in the appropriate clinical context, may be indicative of the condition.
George J Bosl - One of the best experts on this subject based on the ideXlab platform.
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incidence and clinical outcome of patients with teratoma in the Retroperitoneum following primary retroperitoneal lymph node dissection for clinical stages i and iia nonseminomatous germ cell tumors
The Journal of Urology, 2003Co-Authors: Joel Sheinfeld, Robert J Motzer, Farhang Rabbani, James M Mckiernan, Dean F Bajorin, George J BoslAbstract:ABSTRACTPurpose: We determined the incidence and clinical outcome of patients with clinical stages I and IIA nonseminomatous germ cell tumors (NSGCT), and teratoma in the Retroperitoneum following primary retroperitoneal lymph node dissection (RPLND).Materials and Methods: Between January 1989 and February 1998, 294 patients with clinical stages I (209) and IIA (85) underwent primary RPLND at our institution. The primary tumor had teratomatous elements in 179 (61%) cases. Median followup was 27.8 months.Results: The overall incidence of teratoma in the Retroperitoneum was 9% (25 of 294), and 21% (25 of 118) in patients with pathological stage II disease. The incidence of teratoma in the Retroperitoneum increased from 3% (6 of 209) in clinical stage I to 22% (19 of 85, chi-square test p <0.0001) in clinical stage IIA. The incidence of teratoma in patients with pN1/N2/N3 disease increased from 9% (6 of 64) in clinical stage I to 35% (19 of 54) in clinical stage IIA (chi-square test p = 0.0006). All 25 patie...
Mamoru Fukuda - One of the best experts on this subject based on the ideXlab platform.
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a malignant solitary fibrous tumor in the Retroperitoneum
International Journal of Clinical Oncology, 2008Co-Authors: Mamoru Fukuda, Yoshiaki Imamura, Haruki FuseAbstract:Solitary fibrous tumor in the Retroperitoneum is rare. We report a case of a malignant solitary fibrous tumor in the Retroperitoneum, with a lymph node metastasis, in a 48-year-old-woman. Computed tomography and magnetic resonance imaging indicated a mass in the retroperitoneal space beside the left kidney, with a swollen paraaortic lymph node. Surgical findings revealed a circumscribed tumor in the Retroperitoneum. A pathohistological examination revealed two separate components: a benign hypocellular area rich in collagen fibers and a malignant hypercellular area with nuclear atypia. The histological finding for the lymph node was the same as that in the hypercellular area. Because of these findings, the mass was diagnosed as malignant solitary fibrous tumor. Only surgical treatment was performed, and the patient is alive without recurrence 2.5 years after the surgery. Immunohistochemical staining for p53 was positive in the malignant component but negative in the benign area, indicating that the expression of p53 may play a critical role in the malignant transformation of solitary fibrous tumor.