case_images: PMC2782168_01
case_images: PA chest roentgenogram shows well-defined, paratracheal mass of about 7 cm in the upper zone of the right hemithorax.
case_images: jkms-20-674-g001.jpg
case_images: PMC2782168_01_jkms-20-674-g001.jpg
case_images: F1
case_images: Chest radiograph (CXR) demonstrated a superior mediastinal mass (Fig. 1).
case_images: Contrast enhanced computed tomography (CT) demonstrates a 7 cm sized proximal right subclavian artery aneurysm and intraluminal yin-yang appearance due to thrombus.
case_images: jkms-20-674-g002.jpg
case_images: PMC2782168_01_jkms-20-674-g002.jpg
case_images: F2
case_images: Computed tomography (CT) and magnetic resonance imaging (MRI) demonstrated a 7 cm sized proximal right subclavian artery aneurysm (Fig. 2, 3).
case_images: Reconstructed three-dimensional magnetic resonance imaging (MRI) demonstrated positional relationships between right subclavian artery aneurysm and surrounding vessel.
case_images: jkms-20-674-g003.jpg
case_images: PMC2782168_01_jkms-20-674-g003.jpg
case_images: F3
case_images: Computed tomography (CT) and magnetic resonance imaging (MRI) demonstrated a 7 cm sized proximal right subclavian artery aneurysm (Fig. 2, 3).
case_images: Preoperative digital subtraction angiography of mass revealing an saccular aneurysm of right subclavian artery with afferent and efferent loop and intraluminal filling defects.
case_images: jkms-20-674-g004.jpg
case_images: PMC2782168_01_jkms-20-674-g004.jpg
case_images: F4
case_images: Thoracic and subclavian aortography revealed a tortuous right subclavian arterial anatomy with a saccular aneurysm beginning near the subclavian origin (Fig. 4).
case_images: (A) Microscopically, atheromatous plaque contains amorphous pink material with slit-like "cholesterol clefts" of lipid material and calcification. There is recent hemorrhage on right side (H&E stain, x20). (B) At higher magnification, many foam cells and a cholesterol cleft are seen (H&E stain, x200).
case_images: jkms-20-674-g005.jpg
case_images: PMC2782168_01_jkms-20-674-g005.jpg
case_images: F5
case_images: Pathology was consistent with an atherosclerotic aneurysm filled with thrombus (Fig. 5).