Bremsstrahlung imaging after 32P treatment for residual suprasellar cyst

A patient with residual suprasellar cystic neoplasm was treated by direct instillation of the 32P colloid. The incidental bremsstrahlung images on a conventional gamma camera helped to localize the pharmaceutical within and outside of the lesion. Advantages of bremsstrahlung imaging and the dosimetry results of phantom studies carried out are described.