Parapharyngeal space has the shape of a reversed pyramid with the base at the cranial surface delimited by temporal and sphenoid bone and and the top pointing to the large horn of the hyoid bone.[1] Styloid diaphragm divides the parapharyngeal space into two regions with different anatomy and constituents: prestyloid space, anterior, conta-ining the deep lobe of the parotid gland, internal maxillary artery, inferior alveolar nerve, lingual, auriculo-temporal, and retrostyloid space, posterior, neurovascular, that contains the internal carotid artery, internal jugular vein, cranial nerves glossopharyngeal, vagus, accessory, hypoglossal and cervical sympathetic chain. [2]
Tumors arising in parapharyngeal space are rare, representing less than 1% of all head and neck malignancies. Any of the structures contained in this space can be a starting point for developing a tumor masses at this level. Most of these tumors are benign, approximately 20% are malignant. [1] The most common tumors of the salivary gland tissue derived from space and are epithelial in nature. Others are likely neurogenic, vascular, lymphatic, etc. [3]

Laryngeal tumors are often discovered in advanced stages because the patients do not pay attention to early symptoms. Sometimes small tumors are difficult to see even if the surgeon performs a fiber optic exam that uses conventional white light. In the last years some technologies started to be used in order to help the surgeon to perform an early detection or to follow up de patient with laryngeal malignancies (1). Early detection of laryngeal neoplasm is one of the most important factors for the success of the treatment. Visualizing abnormal modification at the follow up exam for patient with laryngeal cancer will help the surgeon to initiate the treatment for the recurrence. Some of technologies such as autofluorescence or video contact endoscopy started to be used for early detection of laryngeal malignancies (2,3).