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Neck contrast computed tomography at admission of a 40-year-old woman with rapid airway stenosis due to ruptured occipital artery. Red circle denotes active bleeding of the left occipital artery aneurysm in the (A) transverse view, (B) coronal view, and (C) 3D view. (D) After the first embolization, the aneurysm was not contrasted (arrow). (E) Second embolization. The microcatheter could not be guided to the peripheral occipital artery and a branch from the vertebral artery was coil embolized at the bifurcation (arrowhead).
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There was a 1 cm-long aneurysm in the left occipital artery, with extravascular leakage around the aneurysm (Fig. 1A-C). After embolization, we confirmed that the aneurysm was not contrasted and the procedure was completed (Fig. 1D). As the microcatheter could not be guided to the peripheral occipital artery, the branch from the vertebral artery was embolized with a coil at the bifurcation (Fig. 1E).
Pathology results of a 40-year-old woman with ruptured occipital artery suggested a neurofibroma diffuse type. (A) Hematoxylin-eosin staining; magnification, x40. (B) S-100 immunostaining; magnification, x200.
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The extraction sites were then examined pathologically, and the pathology results showed that it corresponded to a diffuse type of neurofibroma (Fig. 2).