Peripheral T-cell Lymphoma-Unspecified (PTCL-U) Presenting with Hypereosinophilic Syndrome and Pleural Effusions

Abstract

Hypereosinophilic syndrome (HES) is a clinical disorder characterized by persistent eosinophilia and systemic involvement, in which a specific causative factor for the eosinophilia cannot be verified during a certain period of time. There have been only a few reported cases of this syndrome associated with malignant lymphoma. We report a case of peripheral T-cell lymphoma-unspecified with hypereosinophilic syndrome. The patient was a 42-year-old woman with an uncontrolled fever and a sore throat. Eosinophilia was observed on the peripheral blood smear. We confirmed the diagnosis by bone marrow and liver biopsies:. A bone marrow aspiration demonstrated markedly increased eosinophils (24.8%), and a liver biopsy demonstrated infiltration by scattered eosinophils and atypical lymphoid cells, which were confirmed to be T-cell lymphoma cells. This case was a distinctive presentation of peripheral T-cell lymphoma with hypereosinophilic syndrome, probably due to a paraneoplastic condition.

Eosinophilic Pleural Effusion: A Rare Manifestation of Hypereosinophilic Syndrome

“…However, our patient had a normal trans-thoracic echocardiography and beta natriuretic peptide. In addition, the pleural effusion of the three previously reported patients resolved rapidly with clinical improvement, using treatment recommendations for HES of normalizing the peripheral eosinophilia [ 5 – 7 ]. Despite rapid reduction of the peripheral eosinophilia in our patient, the eosinophilic pleural effusion continued to accumulate for months questioning this therapeutic recommendation.…”