Cohen, AaronSteele, Graeme2016-10-112016Cohen, Aaron J., and Graeme S. Steele. 2016. “A Mammary-type Myofibroblastoma of the Prostate: A Case Report.” Urology Case Reports 8 (1): 44-46. doi:10.1016/j.eucr.2016.06.005. http://dx.doi.org/10.1016/j.eucr.2016.06.005.2214-4420http://nrs.harvard.edu/urn-3:HUL.InstRepos:29002444We report the case of a 51-year-old gentleman presenting with obstructive and irritative urinary symptoms, found to have a large prostate mass on imaging. A radical prostatectomy was performed and pathological diagnosis revealed a 12 cm mammary-type myofibroblastoma replacing the entire prostate. Mammary-type myofibroblastoma is a rare lesion outside of the breast, and is considered benign. This is the first reported case of a mammary-type myofibroblastoma occurring in the prostate.en-USMammary-type myofibroblastomaUrinary retentionProstate massJournal Article2016-10-1110.1016/j.eucr.2016.06.005