Investigation of choice in cervical carcinoma is?
**Question:** Investigation of choice in cervical carcinoma is?
A. Chest X-ray
B. Ultrasound
C. Pap smear
D. CT scan
**Core Concept:**
Cervical carcinoma is a type of cancer that develops in the cells of the cervix uteri, the lower part of the uterus. Early detection and staging are crucial for successful treatment. Several diagnostic tests are available for this purpose.
**Why the Correct Answer is Right:**
Cervical carcinoma is primarily diagnosed using Pap smear, also known as Pap test or Pap test. The Pap test involves scraping cells from the cervix and examining them for any abnormal changes under a microscope. A positive Pap test result would then prompt further investigations like colposcopy, biopsy, and imaging studies like CT scan (computed tomography) or MRI (magnetic resonance imaging) for staging and assessing the extent of the disease.
**Why Each Wrong Option is Incorrect:**
A. Chest X-ray: Although chest X-ray may show distant spread of cancer, it is not specific to cervical carcinoma. Other malignancies can also cause abnormal chest X-ray findings.
B. Ultrasound: An ultrasound is useful for assessing the uterus, ovaries, and nearby structures but lacks sensitivity for detecting early-stage cervical carcinoma. Pap test and other diagnostic tests are more specific for cervical cancer detection.
D. CT scan: A CT scan can show local invasion, lymph node involvement, and distant spread of cervical carcinoma, but it is not the initial diagnostic test. Pap test is the primary screening tool for cervical carcinoma followed by other tests if Pap test is positive.
**Clinical Pearl:**
The investigation of choice in cervical carcinoma is a Pap test (Pap smear). This test is essential for early detection, monitoring treatment response, and screening for other gynecological malignancies. If the Pap test is positive, further investigations are performed, including CT scan, colposcopy, and biopsy. This approach ensures that the most appropriate diagnostic tests and staging procedures are applied based on the initial test results.