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Table 1 Atrophy in the gastric mucosa: histological classification and grading [26]

From: Relevance of vitamin D deficiency in patients with chronic autoimmune atrophic gastritis: a prospective study

0. Absent (= score 0)

1. Indefinite (no score is applicable)

2. Present

Histological type

Location & key lesions

Grading

Antrum

Corpus

2.1. Non-metaplastic

Gland disappearance (shrinking)

Fibrosis of the lamina propria

2.1.1. Mild = G1 (1–30%)

2.1.2. Moderate = G2 (31–60%)

2.1.3. Severe = G3 (>  60%)

2.2. Metaplastic

Metaplasia:

– Intestinal

Metaplasia:

– Pseudo-pyloric

– Intestinal

2.2.1. Mild = G1 (1–30%)

2.2.2. Moderate = G2 (31–60%)

2.2.3. Severe = G3 (>  60%)