Solitary aneurysm of the innominate vein.
Two cases of isolated saccular aneurysms of the innominate vein are presented that appeared as mediastinal masses. Contrast-enhanced computed tomography (CT) allowed for accurate diagnosis in one patient, while the second patient had atypical CT findings that led to thoracotomy for proper diagnosis. A diagnosis of innominate vein aneurysm should be considered when a uniform attenuation mediastinal mass is seen on CT so that unnecessary biopsy and surgery can be avoided.
Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
M
M
Haniuda
H
H
Numanami
A
A
Makiuchi
T
T
Yamanda
Y
Y
Imai
S
S
Sone
D000328:Adult; D000783:Aneurysm / Q000000981:diagnostic imaging*; D016121:Brachiocephalic Veins / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008477:Mediastinal Diseases / Q000000981:diagnostic imaging*; D008875:Middle Aged; D014057:Tomography, X-Ray Computed