Abstract:
:Extragastrointestinal stromal tumors (EGISTs) are relatively rare soft tissue neoplasms arising from the extra gastrointestinal tract. The current study presents a case of primary EGIST of the prostate observed in a 55-year-old male. Imaging studies showed a 10×10.5×9.5-cm prostate mass. On histological observation, the mass was separated from the rectum serosa and exhibited a high mitotic count (8/50 high-power fields). The results of immunohistochemical staining showed positive immunoreactivity for cluster of differentiation (CD)117 (c-kit), CD34 and DOG1 in the tumor. On mutation analysis, loss of heterozygosity of the c-kit gene was observed in the prostatic EGIST; however, the platelet-derived growth factor receptor-α (PDGFRA) gene was considered to be normal. Therefore, as EGIST of the prostate is rare, there is a requirement for the confirmation of the diagnosis to be based on immunohistochemistry and mutation analysis (of c-kit and PDGFRA).
journal_name
Oncol Lettjournal_title
Oncology lettersauthors
Liu S,Yu Q,Han W,Qi L,Zu X,Zeng F,Xie Y,Liu Jdoi
10.3892/ol.2014.1968subject
Has Abstractpub_date
2014-06-01 00:00:00pages
1925-1929issue
6eissn
1792-1074issn
1792-1082pii
ol-07-06-1925journal_volume
7pub_type
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