Ethmoidal polypi.
Kershaw
S
S
Hood
C
C
D005005:Ethmoid Sinus / Q000473:pathology*; D006801:Humans; D008297:Male; D008488:Medical Illustration; D010255:Paranasal Sinus Neoplasms / Q000473:pathology*; D011127:Polyps / Q000473:pathology*