[Internal carotid artery parallel to the skull base].

∗ Corresponding author. E-mail address: [email protected] (A. Coca-Pelaz). sulcus. Biopsy of the lesion led to the diagnosis of squamous cell carcinoma. A computed tomography (CT) scan of the lesion showed no pathological adenopathies and, as an incidental finding, confirmed the presence of the left internal carotid artery in an anomalous position, submucosa at the level of the cavum, medial to the Eustachian tube (Figs. 1 and 2) and with a parallel trajectory to the base of the skull until its entry through the carotid foramen (Fig. 3A and B). The patient underwent surgery for his injury, with