目的：探讨泪腺腺癌的CT诊断价值。 方法：回顾性分析26例26眼经病理证实眼眶泪腺腺癌患者的CT影像资料。 结果：泪腺腺癌26例均为单眼发病，右眼15例，左眼11例。CT表现：病变呈圆形、卵圆形15例，不规则形、分叶形11例。15例边界尚清楚，11例轮廓呈锯齿状。肿瘤密度不均匀，内见低密度灶或钙化。26例病变包绕并压迫眼球，14例沿眶外壁向眶尖区生长，与眼肌分界不清，并浸润视神经。眼眶骨质虫蚀样破坏21例，溶骨性破坏5例。 结论：泪腺癌有特异性CT征象，其诊断准确率高，是本病最主要影像检查方法。

AIM:To discuss the value of CT diagnosis of adenoid cystic carcinoma in the lacrimal gland. METHODS:A detailed analysis of 26 cases （26 eyes） of adenoid cystic carcinoma in the lacrimal gland. RESULTS:The 26 cases consisted of 15 right eye illness and 11 left eye illness. Among all the cases, 15 of them exhibited round or oval pathological changes and distinct bound, 11 exhibited irregular sublobal changes and sawtooth bounds.The author also found an uneven dispatch of tumor and calcification. 26 pathological changes surrounded and oppressed the eyeball. In 14 cases, pathological changes grew from the outer eyepit to the inner eyepit and were confused with the eyestrings thus further affected the optic nerve. Orbital bone moth-eaten destruction was in 21 cases, osteolytic destruction in 5 cases. CONCLUSION:CT diagnosis is highly effective in determining adenoid cystic carcinoma in the lacrimal gland.