Corrosion Methods

Vascular or other casts of plastic or metal can be viewed in roentgenograms or after corrosion of the organ (Fig. 15-1) or tissue that was injected. Concentrated hydrochloric acid or 40% potassium hydroxide are used for this purpose. The duration of the process depends on the size of the specimen but may last several days. An alternative to the use of aggressive chemicals are prolonged cooking, followed by repeated rinsing in a strong jet stream of water. Placing the untreated specimen in an ant hill probably gives good results but the logistics of such an undertaking may be a major obstacle.

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