... in increased activation of the mammalian target of the rapamycin ( mTOR ) signaling pathway. Case Presentation: A 52-year-old female patient experienced dyspnea and abdominal pain, leading to the discovery of a retroperitoneal tumor confirmed by tomography. She was initially diagnosed with a retroperitoneal...

... adrenalectomy. [email protected] 11 03 2020 14 03 2020 2 7 2020 This is the first report of a retroperitoneal tumor detected along with a primary hyperaldosteronism adrenal tumor. Due to the low incidence of such tumors and the fact that preoperative CT did not detect...

... revealed that the retroperitoneal tumor may be a malignant disease. However, the pathological diagnosis after laparoscopic resection was retroperitoneal Castleman’s disease, hyaline vascular type. [email protected] 5 03 2020 5 03 2020 30 4 2020 © 2020 The Author(s). Published...

... in the chest, head, and neck. A 71-year-old man was referred to our hospital due to a retroperitoneal tumor in the para-aortic area by computed tomography (CT). Positron emission tomography-CT revealed an uptake in this tumor, suggesting malignant diseases. Laparoscopic tumorectomy was performed...

... retroperitoneal tumor. Contrast CT showed a tumor mass measuring 33 × 26 mm in size with poor contrast enhancement. Because we were unable to rule out tumor malignancy, we planned an operation. The tumor was easily separated and removed without nephrectomy. Histological study revealed a schwannoma. It is rare...

...Yoko Maeda; Takashi Kawahara; Mikiko Tanabe; Yohei Kumano; Mari Ohtaka; Takuya Kondo; Taku Mochizuki; Yusuke Hattori; Jun-ichi Teranishi; Yasuhide Miyoshi; Yasushi Yumura; Yoshiaki Inayama; Masahiro Yao; Hiroji Uemura Introduction: Retroperitoneal tumor is often seen in urology clinical practice...