Tests & Examinations

Tests and examinations assess symptoms through history, physical examination, direct visualization, sampling, or measurement. They answer different questions from cross-sectional or modality-based diagnostic imaging, such as MRI, CT, ultrasound, or angiography. A clinical assessment may use either or both.

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• Anoscopy

  Direct examination of the anal canal and lowest rectum using a short illuminated instrument.

  Tests & Examinations

For scans and image-based techniques, see Imaging.