Midline granuloma syndrome

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Abstract
Thirteen patients with the clinical features of the midline granuloma syndrome are reported. Seven of the patients were determined to have Wegener's granulomatosis and had segmental necrotizing glomerulonephritis in their renal biopsies. Eighteen upper aerodigestive trace mucosal biopsies were available for review from the seven patients, and nine of these biopsies had a granulomatous angiodestructive inflammatory cell infiltrate considered “diagnostic” of Wegener's granulomatosis. The remaining nine biopsies lacked the specific histologic features of Wegener's granulomatosis but were considered consistent with mucosal involvement by the disease. Five of the remaining six patients had upper aerodigestive tract biopsies that were characterized by lymphocytic infiltrates. Three of the five patients had appreciable numbers of “atypical” cells in their biopsies and presented with radiologic evidence of lung involvement. It is our impression that patients with “significant cellular atypia” in their lymphocytic infiltrates have a disease indistinguishable from lymphomatoid granulomatosis, and these patients have a high propensity for either the presence or development of systematic disease that may require chemotherapy. Two patients had lymphocytic infiltrates with only minor degrees of cytologic atypia and no evidence of multisystem disease, and both of these patients responded to local radiation therapy. The remaining patient had a nonspecific histologic pattern in her numerous biopsies and was diagnosed as idiopathic midline destructive disease. She also had an adequate response to radiation therapy.

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