Gastritis classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

Gastritis may be classified according to chronicity, into two categories: acute and chronic. Gastritis may also be classified by pathology/pathophysiology into subtypes by proposed classification systems such as the updated Sydney system [*REF] or the Operative Link for Gastritis Assessment [OLGA] staging system [*REF].

Classification

Classification by chronicity:

• Acute gastritis: a sudden inflammation of the lining of the stomach.
• Chronic gastritis: inflammation of the lining of the stomach that persists for a long time.

Classification by Updated Sydney System:

Classification by OLGA system: