Hepatosplenic T-Cell lymphoma (HSTCL) is a rare form of extra-nodal post-thymic T-cell non-Hodgkin's lymphoma that primarily involves liver and spleen with B symptoms, with a characteristic absence of lymphadenopathy. We report such an entity in a 65-year-old man who was diagnosed to have multiple myeloma and treated for the same for two years. A clinical diagnosis of secondary myelofibrosis was suspected and was investigated, when he developed pancytopenia and massive hepatosplenomegaly at one of his follow-up visits. The patient underwent therapeutic splenectomy with a simultaneous wedge biopsy of the liver and with their corresponding histopathological and immunohistochemical features, the diagnosis of HSTCL was clinched.