Hairy Cell Leukemia

Question 1

What is a characteristic feature of Hairy Cell Leukemia?

Answer 1

Cytoplasmic projections that stain positive for tartrate-resistant acid phosphatase (TRAP)

TRAP positivity is a key diagnostic marker for Hairy Cell Leukemia.

Question 2

How do WBC counts in Hairy Cell Leukemia typically present?

Answer 2

Low WBC counts, which is unusual for leukemia

This contrasts with the typical presentation of leukemia, where elevated WBC counts are expected.

Question 3

True or False: Hairy Cell Leukemia is characterized by high WBC counts.

Answer 3

False

Hairy Cell Leukemia is characterized by low WBC counts.

Question 4

Fill in the blank: Hairy Cell Leukemia is characterized by cytoplasmic projections that stain positive for _______.

Answer 4

tartrate-resistant acid phosphatase (TRAP)

TRAP positivity aids in the diagnosis of Hairy Cell Leukemia.