Rare benign tumors: laryngeal and hypopharyngeal lipomata.

Lipomata of the larynx and the hypopharynx are very rare benign lesions; as they look macroscopically like retention cysts, their diagnosis is usually made after surgery. Sometimes, lipomata of the hypopharynx become very large and life-threatening. Plain fluoroscopy and fluoroscopy aided with barium often fail to depict the lesion if it is localized subepiglottically; standard barium swallow examination and computed tomography allow an accurate diagnosis to be made in many cases, although magnetic resonance imaging is still more accurate and allows not only a more specific diagnosis of the lesion, but also a better depiction of the origin of the frequently pedunculated tumor and its extension into the parapharyngeal space. This paper adds 6 cases of hypopharyngeal and 1 case of laryngeal lipoma to the literature and discusses modern diagnostic and therapeutic strategies.