232-233 / 2351
OROPHARYNX: SUBSITES
Rare
Tend to remain
asymptomatic
(pain, bleeding and dysphagia) until
they gain considerable bulk, often diagnosed at late stages (75%)
POSTERIOR PHARYNGEAL WALL
Pathways of spreading
Retropharyngeal and prevertebral spaces
Lateral extension is uncommon
Bilateral N involvement
(lymphatic spread is found in
about 25% of T1 and in 75% or more of T4)
mercoledì 29 giugno 16