Abstract
We treated a 47-year-old male with hemangioma of the hypopharynx.
He visited our hospital with a complaint of dysphagia and laryngeal discomfort which had persisted for 3 months. Fiberscopic examination showed a dark-red mass on the right piriform sinus. However, the vocal cord moved normally and there was no mass in the neck. Esophagraphy and MRI revealed a tumor with a clear margin in the right piriform sinus. Dynamic CT was performed to evaluate tumor vascularity. The time-concentration curve demonstrated almost the same vascularity as the opposite hypopharyngeal mucosa. The patient underwent lateral pharyngotomy. The tumor arose from the anterior hypopharyngeal wall, but there was no feeding vessel. It did not bleed easily, and its vascularity conformed with that seen on dynamic CT. The tumor was totally removed, histological examination showed hemangioma.
We conclude that dynamic CT is useful for evaluating the vascularity of hypopharyngeal hemangioma.
