%0 Journal Article %T Solitary Fibrous Tumor of the Prostate: A Diagnostic Challenge: A Case Report %J Iranian Journal of Pathology %I Farname Inc in collaboration with Iranian Society of Pathology %Z 1735-5303 %A Nishith, Nilay %A Gupta, Monika %A Kaushik, Nidhi %A Sen, Rajeev %D 2020 %\ 01/01/2020 %V 15 %N 1 %P 41-44 %! Solitary Fibrous Tumor of the Prostate: A Diagnostic Challenge: A Case Report %K Diagnosis %K Immunohistochemistry %K Prognosis %K Prostate %K Solitary Fibrous Tumor %R 10.30699/ijp.2019.104669.2069 %X Solitary fibrous tumor (SFT) of prostate is an unusual type of mesenchymal neoplasm that can elicit a benign or malignant phenotype. It represents a diagnostic challenge as it can simulate poorly differentiated adenocarcinoma and various mesenchymal neoplasms of prostate. We report a case of prostate SFT in a 54-year-old patient, which was clinically misdiagnosed as nodular hyperplasia of prostate with cystitis. However, on follow-up, he was not relieved by the designated treatment. Furthermore, he complained of exacerbation of symptoms and consequently, had to undergo open prostatectomy. Based on histopathological and immunohistochemical (IHC) assessment, a diagnosis of SFT of the prostate was rendered. Additionally, we have discussed the histological mimics of SFT and the diagnostic and prognostic importance of IHC while evaluating such lesions. %U https://ijp.iranpath.org/article_37621_a676736c019982a4cd4d9de85d9dacad.pdf