First of all, initial observation by hysteroscopy should be begun in the cervical canal before mechanical dilatation of the cervix. The cervical canal, which measures 2–3 cm from the external to the internal os in length, is lined by the endocervix with a pink-white color and a complicated wrinkle pattern. Once the instrument and hysteroscope are prepared for an efficient examination, the hysteroscope is advanced slowly from the external os into the cervical canal under visual control. The cervical canal results in the entire scene as the pressure of the rinsing fluid increases gradually by turning off the outflow valve. To get useful information about endocervical pathology by using hysteroscopy, it is necessary to know the normal findings of the cervical canal in advance.
KeywordsCervical Canal Papillary Projection Squamocolumnar Junction Endocervical Canal Papanicolaou Smear
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