Scintigraphic evaluation of two cases with alveolar soft part sarcoma.

Two cases of alveolar soft part sarcoma were examined with gallium-67 citrate (67Ga), technetium-99m-methylenediphosphate (99mTc-MDP) and technetium-99m(V)-dimercaptosuccinic acid (Tc(V)-DMS) to compare the sensitivity of these three radiopharmaceuticals. All scintigrams were positive with primary tumor, and images with Tc(V)-DMS were the best. Skull metastasis could be also detected by all agents, but scintigrams with lung metastases were negative. In scintigraphic evaluation of alveolar soft part sarcoma, Tc(V)-DMS may be a better agent than 67Ga or 99mTc-MDP.