title: Fine-needle aspiration biopsy diagnosis of intrathoracic extramedullary hematopoiesis presenting as a posterior mediastinal tumor in a patient with sickle-cell disease: Case report.
abstract: Extramedullary hematopoiesis (EMH) is a rare cause of an intrathoracic mass. Fine-needle aspiration biopsy (FNAB) has been only occasionally documented as a useful tool in diagnosing EMH tumor. We report a case of posterior mediastinal extramedullary hematopoietic mass in an 80-yr-old man with sickle-cell anemia. The mass was revealed incidentally on chest X-ray. The definitive diagnosis of this mass lesion was achieved by FNAB. The cytologic smears showed hematopoietic elements with erythroid hyperplasia. A correct cytologic diagnosis can thus help to avoid unnecessary surgical intervention, particularly in an asymptomatic patient.
authors.affiliation: Department of Pathology, King Fahad Hospital, Hofuf, Al-Hassa, Saudi Arabia. ymarz@hotmail.com
authors.forename: Yusef M
authors.initials: YM
authors.lastname: Al-Marzooq
authors.forename: Ahmed T
authors.initials: AT
authors.lastname: Al-Bahrani
authors.forename: Rajan
authors.initials: R
authors.lastname: Chopra
authors.forename: Mohmmed I
authors.initials: MI
authors.lastname: Al-Momatten
mesh_terms: D000368:Aged; D044963:Biopsy, Fine-Needle; D003937:Diagnosis, Differential; D006411:Hematopoiesis, Extramedullary; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000473:pathology*; D035423:Thoracic Cavity / Q000473:pathology*