title: Unlikely culprit: congenital middle aortic syndrome diagnosed in the sixth decade of life.
abstract: A 58-year-old woman was admitted with acute heart failure. She had a long history of resistant hypertension, with an unremarkable work up for secondary causes in the past. Her brachial blood pressure was 210/70 mm Hg, with ankle blood pressure of 100/70 mm Hg. CT angiogram revealed marked narrowing of the descending thoracic aorta between the left subclavian artery and the diaphragm, consistent with middle aortic syndrome (MAS). She was initially managed with diuretics and antihypertensives. Subsequently thoracotomy revealed a severely hypoplastic segment of the descending aorta. The diseased segment was resected and aortic reconstruction performed. Histopathology showed fragmentation of the medial elastic fibres and fibrosis of the medial and intimal layers. These findings along with gross aortic hypoplasia and absence of features of Takayasu's arteritis, suggest that our patient had congenital MAS. The patient has done well since her surgery. We believe this is the first case of congenital MAS reported in the sixth decade of life.
authors.affiliation: Department of Medicine, John H Stroger Hospital of Cook County, Chicago, Illinois, USA.
authors.forename: Muhammad Sajawal
authors.identifier: http://orcid.org/0000-0002-9343-1074
authors.initials: MS
authors.lastname: Ali
authors.affiliation: Department of Medicine, University of Illinois at Chicago College of Medicine, Chicago, Illinois, USA.
authors.forename: Stefan
authors.initials: S
authors.lastname: Tchernodrinski
authors.affiliation: Department of Medicine, John H Stroger Hospital of Cook County, Chicago, Illinois, USA.
authors.forename: Divyanshu
authors.initials: D
authors.lastname: Mohananey
authors.affiliation: CMH Lahore Medical and Dental College, Lahore, Pakistan.
authors.forename: Ahya Sajawal
authors.initials: AS
authors.lastname: Ali
mesh_terms: D000208:Acute Disease; D001013:Aorta, Thoracic / Q000000981:diagnostic imaging*; D001018:Aortic Diseases / Q000151:congenital* / Q000000981:diagnostic imaging; D021921:Aortic Stenosis, Supravalvular / Q000000981:diagnostic imaging; D057210:Delayed Diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006333:Heart Failure / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D013348:Subclavian Artery / Q000000981:diagnostic imaging; D013577:Syndrome