title: Malakoplakia of the prostate on needle core biopsy: a case report and review of the literature.
abstract: Malakoplakia is a rare inflammatory disorder that results from an infectious process and that may be associated with immunosuppression. It most often occurs in the genitourinary tract; however, isolated cases have been reported in many other organs, including colon, stomach, lung, liver, bone, uterus, and skin. In the bladder, which is the most common site of involvement, it may be mistaken for malignancy on cystoscopic examination or computerized topography scan. Gram-negative bacteria such as Escherichia coli and Klebsiella pneumonia are often isolated from malakoplakia lesions, although other less common bacteria such as Rhodococcus equi may also be found. This is a case report of prostatic malakoplakia diagnosed on needle core biopsy from a patient suspected to harbor a malignancy.
authors.affiliation: Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, New York 14642, USA.
authors.forename: David
authors.initials: D
authors.lastname: Wagner
authors.forename: Jean
authors.initials: J
authors.lastname: Joseph
authors.forename: Jiaoti
authors.initials: J
authors.lastname: Huang
authors.forename: Haodong
authors.initials: H
authors.lastname: Xu
mesh_terms: D000368:Aged; D044963:Biopsy, Fine-Needle; D003924:Diabetes Mellitus, Type 2 / Q000150:complications; D003937:Diagnosis, Differential; D005756:Gastritis / Q000150:complications / Q000382:microbiology; D006801:Humans; D006937:Hypercholesterolemia / Q000150:complications; D006973:Hypertension / Q000150:complications; D002479:Inclusion Bodies / Q000473:pathology*; D007249:Inflammation / Q000473:pathology; D008287:Malacoplakia / Q000473:pathology* / Q000601:surgery; D008297:Male; D011467:Prostate / Q000473:pathology* / Q000601:surgery; D011471:Prostatic Neoplasms / Q000473:pathology; D011704:Pyelonephritis / Q000150:complications