Which of the following statement is true in cytochemistry of ALL
Solution:

In L1 and L2 sub types of ALL ( B cell - ALL) PAS positive Blocker are seen in Lymphoblasts on clear Cytoplasmic background.
In T Cell - ALL and in L3 Sub type of ALL. PAS reaction is negative.
PAS positive (Block positivity)
Myeloperoxidare positive
Sudon Black B positive
Non specific estesare positive