Pityriasis lichenoides in a girl with the granulomatous form of common variable immunodeficiency.

Pityriasis lichenoides (PL) is a cutaneous disease of unknown origin. In our 8-year-old female patient with the granulomatous form of common variable immunodeficiency (CVID), PL occurred together with massive splenomegaly and intra-abdominal lymphadenopathy. Prednisone was efficient for treatment of her splenomegaly and autoimmune cytopenias. However, PL was resistant to both topical and systemic steroid treatment. Healing of PL was achieved with the use of a super-potent topical steroid, clobetasol propionate. A defect of T-cell function in CVID may contribute to development of PL. In the granulomatous form of CVID, sarcoid-like granulomas are the most commonly reported cutaneous lesions. PL has not been previously reported.