首先,谢谢九等生网友!
他说的方法非常好!!
Immature teratomas have been traditionally graded from 1 to 3 based on the amount of immature, almost always neural tissue (112). Grade 1 tumors have rare foci of embryonal neural tissue occupying less than 1 low-power (×40) field (lpf) in any slide, grade 2 tumors contain moderate quantities of embryonal neural tissue, occupying more than 1 but fewer than 4 lpfs in any slide, grade 3 tumors contain large quantities of embryonal neural tissue occupying 4 or more lpfs in any slide.
Sternberg Diagnostic Surgical Pathology, 4th Edition
但是,“fewer than 4 lpfs in any slide”与“occupying 4 or more lpfs in any slide. ”似乎是矛盾的。前者是全否定,后者是全肯定,那么部分肯定与部分否定的情况如何呢?对了,那一定是归为Grade 2~3了。
首先,谢谢九等生网友!
他说的方法非常好!!
Immature teratomas have been traditionally graded from 1 to 3 based on the amount of immature, almost always neural tissue (112). Grade 1 tumors have rare foci of embryonal neural tissue occupying less than 1 low-power (×40) field (lpf) in any slide, grade 2 tumors contain moderate quantities of embryonal neural tissue, occupying more than 1 but fewer than 4 lpfs in any slide, grade 3 tumors contain large quantities of embryonal neural tissue occupying 4 or more lpfs in any slide.
Sternberg Diagnostic Surgical Pathology, 4th Edition
但是,“fewer than 4 lpfs in any slide”与“occupying 4 or more lpfs in any slide. ”似乎是矛盾的。前者是全否定,后者是全肯定,那么部分肯定与部分否定的情况如何呢?对了,那一定是归为Grade 2~3了。