title: A large intrascrotal calculus.
abstract: A large stone with 8.7 cm multiply 7.2 cm multiply 6.5 cm in size and 420 g in weight dropped down spontaneously from a 93-year-old man's scrotum, who had suffered from left intrascrotal mass and pain for more than 20 years. The component of the stone was magnesium ammonium phosphate. To the best of our knowledge, it is the largest intrascrotal calculus reported in the world. We hereby present the case and discuss the diagnosis and etiology of scrotal calculi.
authors.affiliation: Department of Urology, Sir Run Run Shaw Hospital, College of Medical Sciences, Zhejiang University, Hangzhou 310016, China. lgh_002@163.com
authors.forename: Gong-Hui
authors.initials: GH
authors.lastname: Li
authors.forename: Xin-De
authors.initials: XD
authors.lastname: Li
authors.forename: Sheng
authors.initials: S
authors.lastname: Cheng
authors.forename: Zhao-Dian
authors.initials: ZD
authors.lastname: Chen
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002137:Calculi / Q000737:chemistry / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D017616:Magnesium Compounds / Q000032:analysis; D008297:Male; D052801:Male Urogenital Diseases / Q000175:diagnosis / Q000209:etiology; D010710:Phosphates / Q000032:analysis; D012611:Scrotum / Q000473:pathology*; D000069877:Struvite
chemical_list: D017616:Magnesium Compounds; D010710:Phosphates; D000069877:Struvite