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  • Title: Comparison of colposcopy directed biopsies and cold knife conization in patients with abnormal cytology.
    Author: Hovadhanakul P, Mehra U, Terragno A, Taylor HB, Cavanagh D.
    Journal: Surg Gynecol Obstet; 1976 Mar; 142(3):333-6. PubMed ID: 1251312.
    Abstract:
    One hundred patients with abnormal cytology were evaluated by colposcopy, and histologic material was obtained by directed biopsies, cold knife conization and endocervical curettage. The colposcopy directed biopsies provided the diagnosis in 94 per cent of the patients, and the colposcopic impression was accurate in 89 per cent of the patients. Cold knife conization was performed in 98 patients, since two patients had invasive carcinoma on colposcopic directed biopsy. In 75 patients, the histopathologic finding on cone biopsy was in complete agreement with the directed biopsies. In 11 patients, the directed biopsies were a degree higher than on cone biopsy, and in six patients the histopathologic findings were a degree lower. In six patients the colposcopic directed biopsies missed the diagnosis of dysplasia. No patients with carcinoma in situ or invasive carcinoma were missed by the colposcopic directed biopsies.
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