Antrochoanal Polyp

  • Etiology: sinonasal inflammatory polyp
  • Imaging: cucumber in throat
  • DDX: inverted papilloma

Radiology Cases of Antrochoanal Polyp

MRI of antrochoanal polyp
Axial (left), coronal (middle), and sagittal T1 MRI with contrast of the paranasal sinuses show a left-sided polyp extending from the left maxillary sinus (center), to the nasal cavity (left), to the nasopharynx and ultimately to the oropharynx and abutting the epiglottis (right).