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患者女,40岁。因“反复右膝关节疼痛、活动受限十余年”入院。专科检查示:右膝关节胫骨结节处触及明显的包块,质硬,推之不移,压痛明显,局部皮温及皮色正常,右膝关节各方向活动正常,髌骨研磨试验(-),膝关节过身过屈试验(-),侧搬试验(-),右下肢皮肤感觉正常,远端血运可。影像学检查包括膝关节X线平片、CT及MRI(图1~3)。肿瘤标记物阴性;术后行病理及免疫组织化学检查。免疫表型显示:S-100(++),Viment(+),NF(+/-),Ki-67<5%。
Female patient, 40 years old. Because of “repeated right knee pain, limited mobility more than 10 years ” admission. Specialist examination showed: right knee tibial tubercle touched obvious mass, hard, push, tenderness, local skin temperature and normal skin color, right knee activity in all directions normal, patella grinding test (-) , Knee joint over-flexion test (-), lateral move test (-), right lower extremity skin feel normal, distal blood supply can be. Imaging studies included plain X-rays of the knee, CT and MRI (Figure 1-3). Tumor markers negative; postoperative pathology and immunohistochemistry. Immunophenotypes showed: S-100 (++), Viment (+), NF (+/-), Ki-67 <5%.