Skin is commonly affected by graft versus host disease (GVHD), a complication of bone marrow transplantation (BMT). One-third of hematopoietic cell transplantation recipients develop acute eruption classically described as folliculocentric, maculopapular, or morbilliform, in contrast to the more common chronic presentations of sclerotic, poikilodermic, or lichenoid dermatitides. With the wider use of non-myeloablative (reduced-intensity) transplant therapy, various atypical presentations can occur, representing a diagnostic challenge.
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