J Cutan Pathol 2016 Dec 9;43(12):1102-1111. Epub 2016 Sep 9.
Department of Dermatology, College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan.
Background: Hydroa vacciniforme (HV) is associated with Epstein-Barr virus (EBV) infection and a risk of transformation to lymphoma.
Methods: We retrospectively analyzed six HV cases for EBV association and transformation to HV-like T-cell lymphoma. Clinicopathologic features were reviewed and cases were assessed for EBV-encoded RNA (EBER) by in situ hybridization, double staining with immunohistochemistry and EBER and for T-cell clonality.
Results: The male-to-female ratio was 5:1, with a median age at diagnosis of 18.5 years. All patients initially had recurrent vesicles, necrotic ulcers or scars on sun-exposed areas. Symptoms were present before diagnosis between 2 weeks to 10 years. The mean follow-up time was 106.3 months. Four patients (67%) were EBV-positive. All four EBV-positive and one EBV-negative patients had relapsing clinical course. Double staining proved EBV infection in T-cells. Moreover, one EBV-positive patient developed HV-like T-cell lymphoma with hemophagocytosis after 209 months of recurrent papulovesicular eruptions and eventually died. T-cell clonality was successfully performed in four HV patients and all showed polyclonal results; the transformed HV-like T-cell lymphoma was monoclonal.
Conclusions: In EBV endemic areas, HV is frequently (67%) associated with EBV infection, but transformation to HV-like T-cell lymphoma seems to be uncommon (17%) and bear a dismal outcome.
Morphology, immunophenotype, and distribution of latently and/or productively Epstein-Barr virus-infected cells in acute infectious mononucleosis: implications for the interindividual infection route of Epstein-Barr virus Anagnostopoulos et al. Blood 1995