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除了南非和某些局部地区、上颌窦-筛窦复合癌是一种少见的肿瘤。本病症状出现较晚,病变部位深邃,肉眼不易窥见,因而诊断往往被延误,乃致医生们面对的常是肿瘤晚期。肿瘤大多为鳞癌,发源于上颌窦内,由于筛窦侧壁和上颌窦腔之间的关系密切,特别是广泛的肿瘤很难确定起源部位。本病诊断靠仔细的临床资料和组织学检查,CT扫描可以更好地揭示病损部位,特别是扩展到软组织和骨质的破坏。肿瘤多可扩散到眶顶、筛板和后筛窦翼状区或鼻咽部。淋巴结转移者不到5%。据作者4,163例病人的经验,无1例生存超过1年。预后根据扩散的方向而不同,除了早期发现之外,预后不良。对于复合癌,现在多数肿瘤学家均采用手术和放疗法治疗,5年生存率从25%～45%不等。
In addition to South Africa and certain local areas, maxillary sinus-ethmoid sinus complex cancer is a rare tumor. The symptoms of this disease appear later, the lesions are deep, and the naked eye is not easy to see. Therefore, the diagnosis is often delayed. The doctors often face the late stage of the tumor. Most of the tumors are squamous cell carcinomas and originate in the maxillary sinus. Because of the close relationship between the ethmoid sinus lateral wall and the maxillary sinus cavity, it is difficult to determine the origin of the site in a wide range of tumors. The diagnosis of the disease depends on careful clinical data and histological examination. CT scans can better reveal the lesion site, especially to the destruction of soft tissue and bone. Most tumors can spread to the dome, the septum, and the posterior ethmoid sinus wing or nasopharynx. Less than 5% of lymph node metastases. According to the author’s experience of 4,163 patients, none of them survived more than 1 year. The prognosis differs depending on the direction of spread. In addition to early detection, the prognosis is poor. For compound cancers, most oncologists now use surgery and radiotherapy, and 5-year survival rates range from 25% to 45%.