Department of Otolaryngology-Skull Base Surgery, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, 410008, Hunan, People's Republic of China.
Department of Rehabilitation, Brain Hospital of Hunan Province, Hunan University of Chinese Medicine, Changsha, Hunan, People's Republic of China.
Eur Arch Otorhinolaryngol. 2021 Sep;278(9):3315-3323. doi: 10.1007/s00405-020-06577-5. Epub 2021 Jan 3.
To investigate the anatomical features of frontal recess (FR) drainage, and the classification of FR cells and frontal sinus (FS).
Fifty sides from 30 adult cadaver heads were examined. FR cells and FS along the drainage pathways were dissected under 0° and 70° endoscopic views using unique connecting structures between the uncinate process and the ethmoid bulla as landmarks.
Connecting plates between the uncinate process and the ethmoid bulla were discovered and termed medial suprainfundibular plate (MSIP), which were observed on each cadaver head, and lateral suprainfundibular plate (LSIP) on 92% (46/50) sides. Separated by MSIP, two drainage pathways were identified and named medial pathways of the FR (MPFR) medial to the MSIP and the lateral pathways of the FR (LPFR) in the lateral side. Different drainage pathways of the FS were confirmed, in which drained into the MPFR in 37 and into the LPFR in 13 of the cadaver sides.
MSIP is the critical landmark for the recognition of MPFR, LPFR, and the classification of FR cells. The FR resection along LPFR and MPFR facilitated excellent exposure of FS.
研究额窦（FS）引流额隐窝（FR）的解剖学特征，以及 FR 细胞和 FS 的分类。
对 30 具成人尸头的 50 侧进行了研究。在 0°和 70°内窥镜视野下，使用钩突和筛泡之间的独特连接结构作为标志，解剖 FR 细胞和 FS 沿引流途径的结构。
发现了钩突和筛泡之间的连接板，并将其命名为内侧额上板（MSIP），在每个尸头都观察到了该板，而在 92%（46/50）侧观察到了外侧额上板（LSIP）。MSIP 将 FR 的两条引流途径分开，分别命名为 MSIP 内侧的 FR 内侧引流途径（MPFR）和外侧的 FR 外侧引流途径（LPFR）。证实了不同的 FS 引流途径，其中 37 侧流入 MPFR，13 侧流入 LPFR。
MSIP 是识别 MPFR、LPFR 和 FR 细胞分类的关键标志。沿着 LPFR 和 MPFR 切除 FR 可充分暴露 FS。
