Treatment of Internal Hemorrhoids by Endoscopic Sclerotherapy with Aluminum Potassium Sulfate and Tannic Acid

<div>(a) ALTA injection with retroflection of the endoscope as the first step. (b) ALTA injection with a forward-viewing direction as the second to fourth steps.</div>

Diagnostic and Therapeutic Endoscopy

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Figure 2

Figure 2: Treatment of Internal Hemorrhoids by Endoscopic Sclerotherapy with Aluminum Potassium Sulfate and Tannic Acid 