Scintiscanning demonstration of thymoma: Comparative study on scintiscans usingTl,Ga andSe.

Autor: Yuzuriha, Hideki, Morimoto, Masami, Inokawa, Koichi, Hikita, Hitoshi, Iida, Futoshi, Nakanishi, Fumiko, Sone, Shunsuke
Zdroj: Japanese Journal of Surgery; Jul1986, Vol. 16 Issue 4, p250-256, 7p
Abstrakt: Thymus scintigraphy was performed usingTl-chloride,-Ga-citrate andSe-selenomethionine on 30 thymoma patients with or without myasthenia gravis. Mass negativity was observed in 6 out of 17 (35.3 per cent) and 3 out of 13 cases (23.1 per cent), respectively. A rate of 70 per cent (21 cases out of 30) of mass positivity was observed by thymus scan usingTl. With regard to the relation between thymus scan and cell type,Tl-scan exhibited a high rate of mass positivity, regardless of the cell type while theSescan showed a trend toward mass positivity in epithelial cell predominant cases. WithTl, mass positivity was observed when the CPM/g ratio for tumors and blood exceeded 3.0. This trend can serve as an index for the suitability of supplementary chemo- and radiotherapies, as well as for prognosis in cases of relapse, and in those for whom excision was not complete. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index