title: Firm flank mass decreasing in size after pregnancy.
authors.affiliation: Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland.
authors.forename: Mostafa
authors.initials: M
authors.lastname: El Dafrawy
authors.affiliation: Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland.
authors.forename: Alex
authors.initials: A
authors.lastname: Baras
authors.affiliation: Department of Surgery, Johns Hopkins Hospital, Baltimore, Maryland3Department of Oncology, Johns Hopkins Hospital, Baltimore, Maryland.
authors.forename: Nita
authors.initials: N
authors.lastname: Ahuja
mesh_terms: D000058:Accidental Falls; D000328:Adult; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D005208:Fasciitis / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D018084:Ultrasonography, Interventional