Classifications

In the past, numerous efforts were made to categorize the phenomenon of chronic gastritis. A widely used classification was based on etiological criteria, subdividing the disease into types A, B, and C. "Special forms" were added as a separate category (Table 3.13). Today a modified version of the Sidney classification (1990, 1996) is most commonly used. It takes into account etiological and histological parameters and the location of the gastritis (Table 3.14).

Table 3.13 Classification of chronic gastritis

Fig. 3.81 Chronic gastritis. Chronic inflammation with subtle histological findings

Table 3.13 Classification of chronic gastritis

Type

Cause

Frequency

Type A

Autoimmune gastritis

approximately 5%

Type B

Bacterial gastritis

approximately 85 %

Type C

Toxic chemical gastritis

approximately 10%

Special forms

Table 3.14 Sidney classification of chronic gastritis

Fig. 3.81 Chronic gastritis. Chronic inflammation with subtle histological findings

Table 3.14 Sidney classification of chronic gastritis

Type of gastritis

Causative factors

Synonyms

Nonatrophic

H. pylori, other factors

Type B gastritis

Atrophic

(Fig. 3.82)

Autoimmune process

Type A gastritis

- Autoimmune

H. pylori, nutrition,

Type B gastritis

- Multifocal

environmental factors

atrophic

Special forms

Chemical irritation

Type C gastritis

- Chemical

- Bile reflux

Reflux gastritis

- NSAIDs

NSAID gastro-

pathy

- Radiogenic

Radiation-induced

changes

- Lymphocytic

Idiopathic, immuno-

logical, gluten-rich

diet, medications, H.

pylori

- Noninfectious

Crohn disease

- Granulo

Sarcoidosis, Wegener

matous

disease, vasculitides,

foreign bodies,

idiopathic

- Eosinophilic

Food sensitivity, other

allergens

- Infectious

Bacteria other than

(other than

H. pylori, viruses, fungi

H. pylori)

(Fig. 3.83), parasites

Fig. 3.82 a, b Chronic atrophic gastritis b Fig. 3.83 Candidal gastritis in a patient with hepatic cirrhosis

Fig. 3.82 a, b Chronic atrophic gastritis b Fig. 3.83 Candidal gastritis in a patient with hepatic cirrhosis

Was this article helpful?

0 0

Post a comment