Endoscopy - What are the disadvantages?

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The downside to endoscopy

As the endoscope can only view the internal lining of the organ being investigated we are often only able to assess for disease processes that involve these tissues. Additionally, limitations in the reach and dimensions of the endoscope may limit access to certain areas. This means that sometimes we will not be able to make a diagnosis on the basis of endoscopy alone and further diagnostic procedures may be required.