Assertion: oropharynx's base | /r/CapableOf | lack fat planes
Facets:
Source sentences:
text: The detection of SCCs in this subsite is often challenging because the base of the tongue consists of dense musculature and lacks the fat planes that provide a contrasting background to SCCs in other subsites.
text: The detection of SCCs in this subsite is often challenging because the base of the tongue consists of dense musculature and lacks the fat planes that provide a contrasting background to SCCs in other subsites.