Antral sign is seen in: (A) Juvenile angiofibroma, (B) Otosclerosis, (C) CSOM, (D) Sinusitis
Answer is A. Anterior bowing of the posterior wall of maxillary sinus often called antral sign or Holman-Miller sign, which is pathognomic of angiofibroma. (Ref: Diseases of ear, nose and throat, PL Dhingra, 7th edition, page 281)