The most common etiologic agent for reactive lymphocytosis is:

Atypical lymphocytes in reactive lymphocytosis are a proliferation of which type of cell?

All of the following are conditions associated with an increased risk of developing non-Hodgkin’s lymphoma except:

What definitive factor differentiates prolymphocytic leukemia (PL) from CLL?

Extramedullary infiltration of plasmacytoid lymphs in Waldenström’s macroglobulinemia occurs in the __________.

The leukemia phase of cutaneous T-cell lymphoma, mycosis fungoides, is called __________.

Which of the following are T-cell disorders?

Which classification system is most often used by clinicians in the characterization of non-Hodgkin’s lymphoma?

Which type of malignant cell infiltrates the dermis and epidermis in Sézary syndrome and mycosis fungoides?

Nonmetabolized products of mucopolysaccharides may be detected in the __________ of patients with mucopolysaccharidoses (MPS).