title: Pseudolymphoma of the lung: a rare cause of a solitary nodule. A case report and review of the literature.
abstract: Pulmonary pseudolymphoma is a rare lesion; only 30 cases have been previously reported. It presents as a solitary nodule which clinically and roentgenographically can resemble bronchogenic carcinoma. A further case is reported in which preoperative needle aspiration cytology played a role in diagnosis. Although the lesion was originally believed to be benign, a review of the literature has revealed the apparent subsequent development of lymphoma in four cases. The significance of this is discussed, and the need for prolonged follow-up is emphasized, since the prognosis of untreated pseudolymphoma is unknown.
mesh_terms: D001707:Biopsy, Needle; D018288:Carcinoma, Small Cell / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D008223:Lymphoma / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D011379:Prognosis