X-ray showing air column between soft tissue mass and posterior wall of the nasopharynx is suggestive of
In case of antrochoanal polyps, X-ray of paranasal air sinuses may show opacity of the involved antrum. X-ray (lateral view) of soft tissue nasopharynx, reveals a globular swelling in the postnasal space.
It is differentiated from angiofibroma by the presence of a column of air behind the polyp.
Ethmoidal polyp
Antrochoanal polyp
Nasal myiasis
None of the above