What items can be checked by electronic colposcopy? It is so powerful

Electronic colposcopes are mainly used for the diagnosis of cervical lesions and are of great value for early cervical cancer and reproductive lesions. They can also be used to diagnose cervical erosion, cancer, and male and female sexual diseases. This method can measure the length, circumference, and area of ​​the lesion, thereby improving the accuracy of diagnosis.

1. Function

1. True color dynamic image display and Chinese report printing function, dynamic image zoom in, zoom out, freeze, green filter, automatic focus, adjustable light intensity.

2. Dynamically collect images, measure and annotate them, display the time, store patient data and image information, establish a corresponding case database, and have a variety of case query functions.

3. It has powerful dynamic and static image processing functions: it can observe, freeze, collect and save images in real time, which is suitable for vaginal detection and dynamic observation during surgery.

4. The collected images can be processed for various diagnostic purposes: the length, circumference and area of ​​the lesions can be measured to improve the accuracy of diagnosis.

2. Indications

Significance: It is used for the diagnosis of cervical lesions and has important value for early cervical cancer and reproductive lesions.

Indications: Can be used to diagnose cervical erosion, cancer and male and female sexual diseases.

3. Result judgment

1. The normal squamous epithelium of the cervical vagina is smooth and pink. The epithelium does not change color after applying 3% acetic acid. Iodine test positive.

2. The columnar epithelium in the cervical vaginal part. The columnar epithelium in the cervical canal moves downward and replaces the squamous epithelium in the cervical vaginal part, which is clinically called cervical erosion. The surface is velvety and red in color. After applying 3% acetic acid, it swells rapidly and becomes grape-shaped. Iodine test was negative.

3. The transformation zone is the area where squamous epithelium and columnar epithelium intersect, containing new squamous epithelium and columnar epithelium that has not yet been replaced by squamous epithelium. Under colposcopy, dendritic capillaries can be seen; grape islands formed by metaplastic epithelium surrounding columnar epithelium; glandular openings opening into the metaplastic epithelium and retention cysts (cervical glandular cysts) covered by metaplastic epithelium. After applying 3% acetic acid, the metaplastic epithelium is clearly contrasted with the columnar epithelium within the circle. After applying iodine, the iodine color varies in depth. Pathological examination showed squamous metaplasia.

4. Abnormal colposcopy images with negative iodine tests include:

(1) White epithelium: turns white after being coated with acetic acid, has clear boundaries and no blood vessels. Pathological examination may reveal metaplastic epithelium or atypical hyperplasia.

(2) Leukoplakia: White patches with a rough, raised surface and no blood vessels. It is visible even without applying 3% acetic acid. Pathological examination shows hyperkeratosis or parakeratosis, sometimes HPV infection. There may be malignant lesions deep in or around the leukoplakia, and biopsies should be taken routinely.

(3) Dot-like structure: formerly known as white spot base. After applying 3% acetic acid, it turns white, has clear boundaries, a smooth surface and very fine red dots (punctate capillaries). Pathological examination may show atypical hyperplasia.

(4) Mosaic: Irregular blood vessels divide the white epithelium that proliferates after coating with 3% acetic acid into small pieces with clear boundaries and irregular shapes, like a pattern inlaid with red fine lines. If the surface is irregularly protruding and pushes the blood vessels to the surroundings, it indicates that the cells are proliferating too rapidly and you should pay attention to cancer. Pathological examination often shows atypical hyperplasia.

(5) Atypical blood vessels: refers to blood vessels with extremely irregular caliber, size, shape, branching, direction and arrangement, such as spiral, comma, hairpin, leaf, ball, bayberry, etc. Pathological examinations mostly show varying degrees of cancer.

5. The surface structure of early cervical cancer is unclear under strong light, and appears cloudy, gyratory, or lard-like, with the surface being elevated or slightly concave. Local blood vessels abnormally proliferate, the lumen expands, the normal vascular branching is lost, the distance between them widens, the direction becomes disordered, and the shape is special, which may take on tadpole, stick, hairpin, spiral or pompom shapes. After applying 3% acetic acid, the surface appears hyaline edema or cooked meat-like, often with atypical epithelium. Iodine test negative or very lightly stained.