A. Masunaga et al., A CASE OF ENCAPSULATED NONINVASIVE THYMOMA (STAGE-I) WITH MYASTHENIA-GRAVIS SHOWING METASTASIS AFTER A 2-YEAR DORMANCY, SURGERY TODAY-THE JAPANESE JOURNAL OF SURGERY, 25(4), 1995, pp. 369-372
We herein describe a case of thymoma in which metastasis to the left l
ower visceral and parietal pleura was noticed after a 2-year dormancy.
A closer examination revealed no evidence that the metastatic tumors
were of lymph node origin. The initial thymoma was well encapsulated,
and thus it was thought that the development of metastasis might have
reflected a sudden rapid growth of the thymoma cells after a 2-year pe
riod of inactivity.