Xray showing air column between soft tissue mass and posterior wall of nasopharynx is suggestive of -: (A) Ethmoidal polyp, (B) Antrochoanal polyp, (C) Nasalmyiasis, (D) None of the above
Answer is B. Ans. is 'b' i.e., Antrochoanal polyp o On xray.antrochoanal polyp appears as a soft tissue density and shows a column of air between the soft tissue mass and posterior wall of nasopharynx.