INTERPRETATION OF SCINTIGRAPHY OF PAPILLARY CYSTADENOMA LYMPHOMATOSUM(WARTHINS TUMOR) ON THE BASIS OF HISTOPATHOLOGIC FINDINGS

Objectives. The accumulation of Tc-99m-pertechnetate in Warthin's tumo r was estimated scintigraphically and histopathologically to determine the role of the epithelial component in scintigraphy. Study design. S ix cases underwent histopathologic examination and scintigraphic evalu ation with Tc-99m-pertechnetate. Histopathologically the tumors were c lassified into types according to the epithelial component and cystic space and compared with scintigraphic results evaluated by dynamic rad ioactive index and wash-out image. Results. Histopathologic and scinti graphic observations showed an adequate correlation. Cases with a larg e epithelial component and poor cystic space showed a large radioactiv e index of dynamic scintigraphy and hot accumulation of wash-out image . Conclusion. The scintigraphic results were chiefly due to the epithe lial component, but the influence oi the cystic space could not be dis regarded.