A Colposcopy is a diagnostic technique that gives a magnified, illuminated view of the female cervix, vagina, and vulva. This allows in-depth examination of epithelial surfaces and vascular patterns. Colposcopy is a non-invasive to minimally invasive evaluation performed by using a colposcope, an optical instrument with binocular magnification and a light source. Colposcopy does not use ionizing radiation. The technique has been designed to detect unusual changes in the epithelium, especially those that are caused by Pre-cancerous lesions, Human Papillomavirus (HPV) infection, and early malignancy.
Colposcopy is usually done following an abnormal uterine cervical screening test. Unlike imaging techniques that produce internal images, colposcopy is dependent on direct visual inspection and the application of contrast agents like acetic acid and Lugol’s iodine. These agents point out differences in the maturation of epithelia, nuclear density, and glycogen content. This enables unusual areas to appear as acetowhite changes, atypical vascular patterns, or iodine-negative regions. This structural and surface-level emphasis allows accurate localisation of pathology and targeted biopsy from the most suspicious areas, thereby improving diagnostic yield. Widely used in gynecology and preventive oncology, colonoscopy provides real-time correlation between clinical findings and cervical pathology.
Colposcopy helps clinicians evaluate lesion extent, severity, and transformation zone involvement, thereby guiding decisions regarding surveillance, biopsy, or treatment. Interpretation involves systemic evaluation of colour changes and vascular architecture, with findings integrated alongside cytology, Human papillomavirus testing, and clinical history. Through this detailed morphological evaluation, colposcopy plays a vital role in early identification, risk stratification, and management of cervical disease. This bridges screening results with definitive diagnosis.
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