title: Extralobar pulmonary sequestration presenting as a mediastinal malignancy.
abstract: Pulmonary sequestration is an uncommon congenital anomaly usually diagnosed in childhood. It frequently presents as a lower lobe mass with symptoms from vascular shunting, anatomic impingements, or associated anatomic defects. This case report describes an adult with asymptomatic extralobar sequestration involving the mediastinum and left upper lobe. The unusual location and radiographic appearance, suggestive of malignancy, led to prompt surgical exploration. We review the literature on this topic, focusing on anatomic variability and difficulties with preoperative diagnosis.
authors.affiliation: Medical Service, Portland Veterans Affairs Medical Center, Oregon 97207, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Sippel
authors.forename: P S
authors.initials: PS
authors.lastname: Ravichandran
authors.forename: R
authors.initials: R
authors.lastname: Antonovic
authors.forename: W E
authors.initials: WE
authors.lastname: Holden
mesh_terms: D000328:Adult; D001998:Bronchopulmonary Sequestration / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed