Maltoma is positive for-: (A) CD 3, (B) CD 10, (C) CD 23, (D) CD 5
Answer is C. Its an extra nodal marginal zone B cell lymphoma of MALT type.It is characterised by diffuse infilteration by monoclonal small B lymphocytes. CD 23 is a B cell marker.But its negetive for CD5. Reference : Harsh Mohan textbook of pathology, 7th edition.Pg no.356,357