Cutaneous lesions of lymphomatoid granulomatosis.

Lymphomatoid granulomatosis is a rare multisystem disease involving the lungs, skin, and nervous system. The cutaneous disease may be the presenting complaint. A case with nodular and annular infiltrated lesions is reported to encourage the inclusion of lymphomatoid granulomatosis in the differential diagnosis of similar lesions. Prompt diagnosis and early long-term treatment with cyclophosphamide and prednisone can lead to prolonged remissions of this disease. If relapse occurs, prompt treatment with the same regimen may again induce a remission.