Figure 11c. Figures 11, 12. (11) Second branchial cleft cyst in an 11-year-old boy with a mass in the right side of the neck and a history of recurrent inflammation. (a) Axial gadolinium-enhanced T1-weighted MR image shows a hypointense mass in the right side of the neck in the classic location for a second branchial cleft cyst. Irregular inner border of the mass suggests an associated inflammatory process. (b) Coronal T1-weighted MR image shows the mass at the inferior margin of the right parotid gland and lateral to carotid vessels. (c) Photograph of the resected specimen shows the thick capsule of the cystic lesion filled with keratinaceous debris. (12) Second branchial cleft cyst in a 29-year-old woman with a 1-month history of dysphagia, otalgia of the right ear, and swelling of the right side of the neck. Contrast-enhanced CT scan shows a well-defined, right-sided neck mass (m) deep to the carotid space and with medial extension toward the oropharynx.