Sellar and suprasellar granular cell tumor of the neurohypophysis: A rare case report and review of the literature

2017 ◽  
Vol 38 (3) ◽  
pp. 293-299 ◽  
Author(s):  
Biying Jiang ◽  
Xiuying Shi ◽  
Chuifeng Fan
Author(s):  
Sudeshna Bagchi ◽  
Sanchita Kundu ◽  
Arunit Chatterjee ◽  
RudraPrasad Chatterjee

2018 ◽  
Vol 45 (3) ◽  
pp. 143
Author(s):  
AjayKumar Guntaka ◽  
Kalyan Koti ◽  
BSR Prasad Babu ◽  
AnilKumar Mutyala ◽  
Sindhuri Avuthu

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Ramin Niknam ◽  
Kamran Bagheri Lankarani ◽  
Bita Geramizadeh

Gastrointestinal granular cell tumors are uncommon. The most common site of gastrointestinal granular cell tumor (GCT) is esophagus. We report a case of esophageal GCT incidentally diagnosed by endoscopy. The lesion was evaluated by endoscopic ultrasonography and resected using the endoscopic technique without complication.


2022 ◽  
Vol 17 (1) ◽  
Author(s):  
Vladimír Šámal ◽  
Tomáš Jirásek ◽  
Vít Paldus ◽  
Igor Richter ◽  
Ondřej Hes

Abstract Background Yolk sac tumor (YST) is a germ cell tumor. It is primarily located in the gonads but can also occur extragonadally (extragonadal yolk sac tumor - EGYST), most commonly in the pelvis, retroperitoneum or mediastinum. Only a few YSTs of the urachus have been described. Case report We present a rare case report of a 37-year-old male with episodes of macroscopic hematuria. The histological specimen obtained by transurethral resection showed a solid, and in some parts papillary infiltrative, high-grade tumor with numerous areas of marked nuclear atypia and clear invasion between the detrusor bundles. Glandular pattern has been observed in only minority of the tumor. Immunohistochemistry showed significant positivity for GPC3, SALL4 and cytokeratins AE1/AE3, while KRT7 and GATA3 were negative. We concluded that the biopsy findings were consistent with urothelial carcinoma with infrequent YST differentiation. In definitive surgical specimens we found a malignant epithelial, glandular and cystically arranged tumor of germinal appearance arising from urachus. The surrounding urothelium was free of invasive or in situ tumor changes. We reclassified the tumor as a urachal YST. Conclusion EGYST was suspected because glandular and hepatoid structures were found, but the presence of these structures should be verified by immunohistochemistry.


Sign in / Sign up

Export Citation Format

Share Document