Shibuya H, Yasumoto M, Gomi N, Yamada I, Ohhashi I, Suzuki S
Department of Radiology, Tokyo Medical and Dental University, Japan.
Acta Radiol. 1991 Mar;32(2):105-9.
Five patients with a second maxillary cancer (squamous cell carcinoma), which developed 6 to 17 years after initial treatment for the first cancer on the opposite side, were compared with 21 control cases with a primary cancer on the basis of computed tomography (CT) findings. Generally, the second cancer was found at an earlier stage. The specific CT findings of early sinus carcinoma were uneven soft tissue distribution in the antrum and tumor permeation with bone fragments remaining at the original tumor site. These findings may be helpful for distinguishing this cancer from benign chronic sinusitis and/or other malignant sinus disease. The pterygoid process, medial bony wall, and ethmoid sinus had a tendency to be spared in most of the 5 patients with second maxillary cancer compared to the 21 control cases.
5例上颌窦第二原发癌（鳞状细胞癌）患者，在对侧首次癌症初始治疗6至17年后发生该癌，基于计算机断层扫描（CT）结果与21例原发性癌对照病例进行比较。一般来说，第二原发癌在更早阶段被发现。早期鼻窦癌的特定CT表现为窦腔内软组织分布不均匀以及肿瘤浸润，原肿瘤部位残留骨碎片。这些表现可能有助于将这种癌症与良性慢性鼻窦炎和/或其他恶性鼻窦疾病区分开来。与21例对照病例相比，5例上颌窦第二原发癌患者中的大多数，翼突、内侧骨壁和筛窦有未受侵犯的倾向。
