Over 80 of all lymphomas arise in __________.
A. T cells
B. Reed-Sternberg cells
C. B cells
D. NK cells
Question 2
Which of the following skin tumors is/are NOT malignant?
A. Teratoma
B. Melanoma
C. Keratoses
D. Basal cell carcinoma
E. A and C
F. B and DG. All skin tumors may be malignant