Which parotid tumor spreads along nerve sheath ?
Adenoid cystic carcinoma has got high affinity for perineural spread(both axially and circumferentially;antegrade and retrograde fashion) along mandibular and maxillary divisions of trigeminal (common) and facial nerve .It infiltrates nerve more proximally for long distance. Tumor may reach Gasserian trigeminal ganglion ,pterygopalatine ganglion and cavernous sinus SRB,5th,417 .
Pleomorphic adenoma
Mucoepidermoid carcinoma
Adenoid cystic carcinoma
Wahin's tumor
Head and neck