Table 2: Immunohistochemical and polymerase chain reaction (PCR) findings*.

Case numberCD45CD20CD45ROCD5CD10CD43K & LPCR

1++INDND IMonoclonal
2++LLCRMonoclonal
3++KLCR I
4++F+K:CRMonoclonal

Plus sign indicates positive reaction; I: inconclusive; minus sign: negative reaction; ND: not done; F1: focally positive; LLCR: l-light chain restriction; and KLCR: k-light chain restriction.
Reproduced from [4] with permission of the Editor-in-Chief of Archives of Pathology and Laboratory Medicine on behalf of the editorial team of the journal and the American Association of Pathology.