JOURNAL OF SHANDONG UNIVERSITY (OTOLARYNGOLOGY AND OPHTHALMOLOGY) ›› 2018, Vol. 32 ›› Issue (3): 31-36.doi: 10.6040/j.issn.1673-3770.1.2018.005

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Frontal recess classification and analysis of the frontal sinus passageway in 100 Chinese cadaver heads

WU Yanqiao1, ZHENG Weiming2, LI Jiusheng3   

  1. Department of Otolaryngology Head and Neck Surgery, Bethune International Peace Hospital, Shijiazhuang 050000, Hebei, China;
  • Received:2018-02-24 Online:2018-05-20 Published:2018-05-20

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Abstract: Objective To classify types of frontal recesses using Chinese cadaver heads, in order to simplify frontal recess classification and to allow easier and safer construction of the frontal sinus passageway for frontostomy. Methods A total of 100 Chinese cadaver heads underwent sliced sinus computed tomography scans. Data describing the frontal recess were summarized based on the International Frontal Sinus Anatomy Classification system. The frontal sinus passageway was analyzed and verified via cadaver dissection. Results The frontal sinus in Chinese cadaver heads exhibits very large variation in its composition. Cells were present in scans as follows: agger nasi cells in 95%; supra agger nasi cells in 26% of T1 scans, 6% of T2 scans; supra agger frontal cells in 19%; supra bulla cells in 53.5%; supra bulla frontal cells in 22%; and frontal septal cells in 23.5%. Agger nasi, supra agger, and supra agger frontal cells belong to the anterior frontal recess group; frontal septal cells belong to the medial frontal recess; supra bulla and supra bulla frontal cells belong to the posterior group. We classified the frontal sinus passageway into 10 types(in descending frequency): anterior medial(right side, 34 cases; left side, 35 cases); anterior(right side, 18 cases; left side, 17 cases); medial(right side, 14 cases; left side, 13 cases); anterior lateral(right side, 10 cases; left side, 10 cases); posterior(right side, 6 cases; left side, 7 cases); lateral(right side, 6 cases; left side, 5 cases); direct(right side, 3 cases; left side, 5 cases); posterior medial(right side, 3 cases; left side, 4 cases); slit(right side, 2 cases; left side, 0 cases); and posterior lateral(1 case for both sides). Conclusion Use of the International Frontal Sinus Anatomy Classification and the three-dimensional frontal sinus passageway methods may help rhinologists easily construct frontal sinus passageways and safely perform frontostomy.

Key words: Frontal sinus, Frontal recess, Frontal sinus passway, Three-dimensional computed tomographic imaging

CLC Number: 

  • R765.4
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