Results 241 to 250 of about 38,950 (296)

Imaging of primary retroperitoneal neoplasms.

Annali italiani di chirurgia, 2022
Retroperitoneal soft tissue tumors are frequently incidental findings on imaging tests as Computed tomography (CT) or Magnetic Resonance Imaging (MRI). Retroperitoneal soft tissue tumors are rare and therefore not common in daily radiological practice. Clinician and radiologist'skills to set retroperitoneal soft tissue tumors at presentation is crucial
Casciani E, Polettini E, Sollaku S, Masselli G, Lanciotti S, De Angelis C, Gualdi G   +6 more
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Retroperitoneal fibrosis secondary to metastatic neoplasm

Urology, 1977
Retroperitoneal fibrosis may occur secondary to metastatic neoplasm and may simulate the features of the idiopathic variety. A case of retroperitoneal fibrosis due to gastric carcinoma is presented and the historical, physical, cystoscopic, urographic, operative, and pathologic similarities to the idiopathic form discussed.
S M, Usher, H, Brendler, V A, Ciavarra
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CT Characteristics of Primary Retroperitoneal Neoplasms

Critical Reviews in Computed Tomography, 2004
Primary retroperitoneal neoplasms account for only 0.1-0.2% of all malignancies. Retroperitoneal neoplasms are most commonly mesodermal, neurogenic or lymphatic in origin, with lymphoma, liposarcoma, leiomyosarcoma and malignant fibrous histiocytoma the vast majority of malignant primary retroperitoneal tumors.
Amy, Neville, Brian R, Herts
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Radiologic-Pathologic Correlation of Primary Retroperitoneal Neoplasms

RadioGraphics, 2020
An earlier incorrect version of this article appeared in print. The online version is correct.
Khalid Al-Dasuqi, Lina Irshaid, Mahan Mathur   +2 more
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Retroperitoneal germ cell neoplasm: MR and CT

Magnetic Resonance Imaging, 1992
A case of germ cell neoplasm in an undescended retroperitoneal testicle is reported. CT revealed a large mass most consistent with a chronic hematoma. MRI demonstrated findings typical for neoplasm, and this was confirmed on biopsy.
W M, Williams, P A, Kosovsky, R B, Rafal, J A, Markisz   +3 more
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Rare Primary Retroperitoneal Neoplasms.

The Israel Medical Association journal : IMAJ, 2020
Primary retroperitoneal neoplasms (PRN) arise from diverse retroperitoneal tissues. Soft tissue sarcomas (STS) comprise the majority and are well studied. Other non-sarcomatous PRN are very rare and less familiar.To evaluate the clinicopathologic and radiologic features of non-sarcomatous PRN, as well as the outcome of complete tumor resection (TR ...
Danit, Dayan, Subhi, Abu-Abeid, Joseph, Kuriansky, Guy, Lahat, Boaz, Sagie   +4 more
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Adrenal Myelolipoma Simulating a Retroperitoneal Malignant Neoplasm

Journal of Urology, 1981
We describe a case of a large myelolipoma (15 by 12 cm. maximum diameter) that was removed surgically and resembled clinically and semeiologically a malignant retroperitoneal tumor. The patient also had chronic pancreatitis and cholelithiasis. Experimental findings, as well as the frequent association of myelolipomas (usually small) with several ...
J, Fernandez-Sanz, H, Galera, A, Garcia-Donas, R, Gonzalez-Campora, R, Llamas, A, Matilla   +5 more
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Castleman disease mimicking an aggressive retroperitoneal neoplasm

Abdominal Radiology, 1994
A case of Castleman disease of the retroperitoneum in a 26-year-old woman is presented. Sonography, computed tomography, and magnetic resonance imaging demonstrated a large retroperitoneal mass with somewhat heterogeneous imaging characteristics. Although a definitive preoperative diagnosis was not possible, magnetic resonance imaging was useful in ...
W K, Johnson, P R, Ros, C, Powers, C, Stoupis, K H, Segel   +4 more
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CT characteristics of primary retroperitoneal neoplasms in children

European Journal of Radiology, 2010
Primary retroperitoneal neoplasms are uncommon in children. Retroperitoneal neoplasms are either mesodermal, neurogenic, germ cell ectodermal or lymphatic in origin. In general, primary retroperitoneal neoplasms in children have different spectrum and prevalence compared to those in adults.
Yufeng, Xu, Jichen, Wang, Yun, Peng, Jinjin, Zeng   +3 more
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Primary Retroperitoneal Mucinous Cystic Neoplasm

American Journal of Clinical Oncology, 2016
Introduction Primary retroperitoneal mucinous cystic neoplasm (PRMCN) is a rare retroperitoneal tumor with female predilection. It is classified into 3 types: benign mucinous cystadenoma (MCA), borderline mucinous cystadenoma (MCAb), malignant mucinous cystadenocarcinoma (MCAc).
Danit, Dayan, Subhi, Abu-Abeid, Joseph M, Klausner, Boaz, Sagie   +3 more
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