Ott P M, Grob U
Schweiz Med Wochenschr. 1982 May 22;112(21):757-60.
161 patients with parotid tumors seen between 1974 and 1980 are analyzed. A recurrence rate of 20% was found for both benign and malignant tumors. 76% of the recurrent tumors were judged to have been inadequately excised at the first operation. Pleomorphic adenomas had a recurrence rate of 25%. More than half these tumors exhibited multinodular patterns of recurrence. Therefore, a recurrent pleomorphic adenoma should not be reoperated upon for at least one year.
对1974年至1980年间收治的161例腮腺肿瘤患者进行了分析。发现良性和恶性肿瘤的复发率均为20%。76%的复发性肿瘤被判定在首次手术时切除不充分。多形性腺瘤的复发率为25%。这些肿瘤中超过一半表现为多结节复发模式。因此，复发性多形性腺瘤至少一年内不应再次手术。
