title: Fine needle aspiration cytologic findings and differential diagnosis of solitary pseudorheumatoid nodule.
abstract: The cytologic findings in fine needle aspirates of two solitary pseudorheumatoid nodules are presented. The main characteristic of the smears was a necrotic granular and filamentous background accompanied by a granulomatous inflammatory infiltrate. The differential diagnosis is analyzed. The results in these cases indicate that the diagnosis of a solitary pseudorheumatoid nodule may be made by fine needle aspiration cytology after a critical evaluation of the cytologic and clinical data and with the help of special stains and microbial culture.
authors.affiliation: Department of Surgical Pathology, First of October Hospital, Madrid, Spain.
authors.forename: T
authors.initials: T
authors.lastname: Zamora
authors.forename: J
authors.initials: J
authors.lastname: Vargas
authors.forename: P
authors.initials: P
authors.lastname: de Agustín
authors.forename: C
authors.initials: C
authors.lastname: Ballestín
authors.forename: A
authors.initials: A
authors.lastname: Pérez-Barrios
mesh_terms: D001172:Arthritis, Rheumatoid / Q000175:diagnosis / Q000473:pathology; D001707:Biopsy, Needle; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D012218:Rheumatoid Nodule / Q000175:diagnosis* / Q000473:pathology