[Parapharyngeal space tumors. Presentation of three cases and literature review].

Tumors originating in the parapharyngeal space are rare. Eighty percent of the parapharyngeal space neoplasms are benign, and 20% are malignant. The most frequent tumours of this localization are those of salivary origin followed by neurogenic tumor and in third place the paragangliomas. This paper presents three representative cases of parapharyngeal space neoplasms. The literature is reviewed.