The mature histiocytes present in eosinophilic granuloma, Hand–Schüller–Christian disease, and Letterer–Siwe disease are called __________.

Which stain is used to aid in confirmation of Alder–Reilly bodies?

Serum protein electrophoresis (SPEP) demonstrates the absence of a gamma peak. This finding is consistent with which plasma cell disorder?

A type III sideroblast in dyserythropoiesis is demonstrated by:

A lymphoma expressing a monoclonal B-cell phenotype with coexpression of CD10 and rearrangement of the bcl-2 gene is most likely derived from:

Macroglobulinemia refers to the overproduction of monoclonal __________.

Mucosa-associated lymphoid tissue (MALT) lymphomas are characterized by all of the following except:

Which multiple myeloma manifestation describes the formation of abnormal proteins in organ systems due to deposition of immunoglobulin light chains leading to kidney and renal dysfunction?

Immune dysfunction within proliferating B cells of CLL is indicated by:

__________ light chains are most commonly found in patients with myeloma-related amyloidosis.