RT Journal Article SR Electronic T1 Cutaneous T-cell immunoblastic sarcoma JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 167 OP 171 VO 50 IS 2 A1 Jaye E. Benjamin A1 Wilma F. Bergfeld A1 Raymond R. Tubbs A1 James T. McMahon YR 1983 UL http://www.ccjm.org/content/50/2/167.abstract AB We describe a rare malignant neoplasm, cutaneous T-cell immunoblastic sarcoma (IBS-T). Clinical examination revealed multiple 3-6 mm salmon-pink papules. On biopsy, these papules contained perivascular dermal infiltrates with atypical mononuclear cells, characterized by immunohistochemistry and electron microscopy as T lymphocytes with phenotype T3+, T11+, Ia+ and B1-, κ-, λ-, which exhibited focal epidermotropism.