title: [A case of transitional cell carcinoma and milk of calcium in a pyelocalyceal diverticulum].
abstract: A 66-year-old man presented with right flank pain and macroscopic hematuria. Abdominal radiographs and computed tomography revealed a right pyelocalyceal diverticulum with milk of calcium and a soft tissue mass inside it. Other examinations, including positive urine cytology and negative random bladder biopsies, suggested a malignant tumor of the pyelocalyceal diverticulum. The patient underwent right nephroureterectomy. Histopathological examination revealed grade 3 transitional cell carcinoma. This is the first case of transitional cell carcinoma and milk of calcium coexisting in the same pyelocalyceal diverticulum.
authors.affiliation: Department of Urology, Toyooka Hospital.
authors.forename: K
authors.initials: K
authors.lastname: Yoshimura
authors.forename: H
authors.initials: H
authors.lastname: Yoshida
authors.forename: N
authors.initials: N
authors.lastname: Kawase
authors.forename: Y
authors.initials: Y
authors.lastname: Taki
mesh_terms: D000368:Aged; D002129:Calcium Oxalate / Q000032:analysis; D002130:Calcium Phosphates / Q000032:analysis; D002295:Carcinoma, Transitional Cell / Q000150:complications*; D004240:Diverticulum / Q000150:complications*; D006801:Humans; D007669:Kidney Calculi / Q000737:chemistry / Q000150:complications*; D007674:Kidney Diseases / Q000150:complications*; D007680:Kidney Neoplasms / Q000150:complications*; D007682:Kidney Pelvis; D008297:Male
chemical_list: D002130:Calcium Phosphates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; D002129:Calcium Oxalate; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; C485829:calcium phosphate, dibasic, anhydrous