Radiographic findings of immunoblastic lymphadenopathy and related immunoblastic proliferations

Abstract

Immunoblastic lymphadenopathy is a recently recognized disorder of unknown etiology accompanied by clinical manifestations similar to lymphoma. Radiographic examinations of nine patients revealed multisystemic involvement and findings similar to those of lymphomatous processes. The diagnosis of immunoblastic lymphadenopathy should be considered when lung involvement accompanies mediastinal adenopathy and when the anterior mediastinal nodes are spared. One of the patients developed allergic pneumonitis which is interesting in light of recognition of immunoblastic lymphadenopathy as a hyperimmune phenomenon.