CT诊断髌前滑囊炎较少见,笔者报告3例如下。例1　男,45岁。患者有外伤史,左髌前肿胀3个月,疼痛、屈伸受限。检查左髌前可触及13cm×2cm肿物,积液感。CT平扫,左髌前软组织肿胀,皮肤与髌韧带间距增宽,囊区密度增高,质较均匀,CT值为7.0HU。CT诊断:髌前滑囊炎。穿刺抽液,细胞学检查 CT diagnosis of patellar bursitis is less common, the author reported 3 cases as follows. Example 1 Male, 45 years old. Patients had a history of trauma, left anterior patella swelling 3 months, pain, flexion and extension limited. Check before the left patella can touch 13cm × 2cm tumor, fluid feeling. CT scan, soft tissue before the left patella swelling, skin and patellar ligament widening, increased density of the capsule, the quality of more uniform, CT value of 7.0HU. CT diagnosis: anterior patellar bursitis. Puncture fluid, cytology