99mTc-methylene diphosphonate uptake by ossifications and calcifications of non-osseous metastatic tumors.
Two cases of extra-osseous uptake of 99mTc-methylene diphosphonate (MDP) by non-osseous metastatic tumors are reported. One was a metastasis with ossification in the abdominal wall from carcinoma of the sigmoid colon and the other was a metastasis with calcification from an ovarian carcinoma. The mechanism of extra-osseous uptake of 99mTc-MDP is discussed. Bone scintigraphy can be a potential means to assess tumor spread with ossifications and calcifications.
D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D002288:Adenocarcinoma, Mucinous / Q000000981:diagnostic imaging / Q000556:secondary*; D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging; D002114:Calcinosis / Q000000981:diagnostic imaging*; D003536:Cystadenocarcinoma / Q000000981:diagnostic imaging / Q000556:secondary*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010051:Ovarian Neoplasms; D011877:Radionuclide Imaging; D012811:Sigmoid Neoplasms; D013669:Technetium Tc 99m Medronate
D013669:Technetium Tc 99m Medronate