Incrustation and uptake of skeletal imaging agent in transitional cell carcinoma.
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.
Taniguchi
M
M
Department of Radiology, Kanazawa Medical University Hospital, Kahoku-gun, Japan.
Tatsuta
N
N
Yokota
H
H
Ouguchi
M
M
Higashi
K
K
Okimura
T
T
Yamamoto
I
I
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*
D019275:Radiopharmaceuticals; C024226:technetium Tc 99m hydroxymethylene diphosphonate; D013669:Technetium Tc 99m Medronate