Results 41 to 50 of about 38,950 (296)

Retroperitoneal perivascular epithelioid cell tumor in a 47-years old woman

open access: yesMedicina Clínica Práctica, 2023
Perivascular epithelioid cell tumors (PEComa) are rare neoplasms defined as mesenchymal tumors with distinctive histology and immunohistochemistry. They tend to occur in middle-aged patients and mostly in women. The tumours cells show an association with
Minguez Ojeda César   +6 more
doaj   +1 more source

Reversibility of lymphomas and lymphoproliferative lesions developing under cyclosporin-steroid therapy [PDF]

open access: yes, 1984
Post-transplant lymphomas or other lymphoproliferative lesions, which were usually associated with Epstein-Barr virus infections, developed in 8, 4, 3, and 2 recipients, respectively, of cadaveric kidney, liver, heart, and heart-lung homografts ...
Atchison, RW   +12 more
core   +1 more source

Primary retroperitoneal mucinous cystadenocarcinoma with transition from the mesothelium

open access: yesIJU Case Reports, 2020
Introduction Mucinous cystic neoplasms are uncommon among the tumors that develop in the retroperitoneum. We report a case of primary retroperitoneal mucinous cystadenocarcinoma with pathological considerations.
Ikko Tomisaki   +5 more
doaj   +1 more source

Rare complication of chemotherapy in testicular cancer [PDF]

open access: yes, 2009
Testicular neoplasms metastasizing to the retroperitoneum rarely involve the upper gastrointestinal tract. We describe an unusual case of contained small bowel perforation as a complication of chemotherapy treatment of metastatic non seminomatous germ ...
Goad Abdel Helmy Ehab
core   +1 more source

Fetus in fetu with skeletal dysplasia and hyperparathyroidism

open access: yesJournal of Pediatric Surgery Case Reports, 2019
Fetus-in-fetu (FIF) is a rare condition in which malformed parasitic twin grows inside the body of its twin and usually presents as abdominal mass. We are reporting a case of neonate who presented with abdominal mass; FIF was suggestive after further ...
Saad H. Aldosari   +4 more
doaj   +1 more source

Giant Retroperitoneal Liposarcoma: A Case Report

open access: yesCase Reports in Oncological Medicine, 2012
Soft tissue sarcomas represent less than 1% of all human neoplasms. One-third of malignant tumors that arise in the retroperitoneum are sarcomas and liposarcoma is the most common retroperitoneal sarcoma.
Chavan Shahaji   +3 more
doaj   +1 more source

Retroperitoneal nonfunctional extraadrenal paraganglioma: A diagnostic challenge

open access: yesSaudi Journal for Health Sciences, 2021
Retroperitoneal nonfunctional extraadrenal paragangliomas are uncommon neoplasms arising from the aorticosympathetic chain of paraganglia. Biopsy of these tumors shows diverse cytomorphological features which can pose a significant diagnostic challenge ...
Purwa Patil   +3 more
doaj   +1 more source

A rare case of retroperitoneal malignant triton tumor invading renal vein and small intestine [PDF]

open access: yes, 2013
Introduction. Malignant Triton tumor is a very rare malignant peripheral nerve sheath tumor with rhabdomyosarcomatous differentiation. Most of those tumors occur in patients with von Recklinghausen’s disease or as a late complication of irradiation ...
Kostov Miloš   +5 more
core   +1 more source

Revising Fascial Anatomy With a Focus on the Fusion Fascia in Mesenteric Gastrointestinal Cancer Surgery

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
This review critically reassesses our prior hypothesis and proposes a revised anatomical model of the fusion fascia that is broadly applicable to GI cancer surgeries grounded in the principles of mesenteric resection. Our synthesis suggests that the fusion fascia is neither a dense connective tissue membrane nor a remnant of mesothelial fusion, but ...
Hisashi Shinohara   +9 more
wiley   +1 more source

Giant Primary Retroperitoneal Teratoma in an Adult: A Case Report

open access: yesCase Reports in Medicine, 2010
Teratomas are bizarre neoplasms derived from embryonic tissues that are typically found only in the gonadal and sacrococcygeal regions of adults. Retroperitoneal teratomas are rare and present challenging management options.
Poonam Mathur   +2 more
doaj   +1 more source

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