title: Incrustation and uptake of skeletal imaging agent in transitional cell carcinoma.
abstract: We present a case of transitional cell carcinoma of the bladder visualized by 99mTc-HMDP bone scintigraphy and suggest possible uptake mechanisms. Pelvic CT demonstrated a sessile bladder tumor with punctate and curvilinear calcifications on the surface areas (incrustation). Technetium-99m-HMDP bone scintigraphy demonstrated intense uptake corresponding to the site of the bladder tumor. Chemisorption of urinary 99mTc-HMDP, rather than of blood-born 99mTc-HMDP, may have occurred at the tumor surface.
authors.affiliation: Department of Radiology, Kanazawa Medical University Hospital, Kahoku-gun, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Taniguchi
authors.forename: N
authors.initials: N
authors.lastname: Tatsuta
authors.forename: H
authors.initials: H
authors.lastname: Yokota
authors.forename: M
authors.initials: M
authors.lastname: Ouguchi
authors.forename: K
authors.initials: K
authors.lastname: Higashi
authors.forename: T
authors.initials: T
authors.lastname: Okimura
authors.forename: I
authors.initials: I
authors.lastname: Yamamoto
mesh_terms: D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary; D002114:Calcinosis / Q000000981:diagnostic imaging*; D002295:Carcinoma, Transitional Cell / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013669:Technetium Tc 99m Medronate / Q000031:analogs & derivatives; D001749:Urinary Bladder Neoplasms / Q000000981:diagnostic imaging*
chemical_list: D019275:Radiopharmaceuticals; C024226:technetium Tc 99m hydroxymethylene diphosphonate; D013669:Technetium Tc 99m Medronate