[Acute Campylobacter colitis]

Area of Science:

• Gastroenterology
• Infectious Diseases
• Pathology

Background:

• Colon campylobacteriosis is an infectious colitis.
• Distinguishing it from other forms of colitis, such as Shigella colitis, is clinically important.

Purpose of the Study:

• To investigate the histopathological features of colon mucous membrane biopsies in patients with colon campylobacteriosis.
• To identify characteristic inflammatory patterns and differentiate campylobacteriosis from Shigella colitis.

Main Methods:

• Colon mucous membrane biopsies were obtained from 16 adult patients diagnosed with colon campylobacteriosis via colonofibroscopy.
• Histopathological analysis focused on inflammatory patterns, cellular infiltration, and mucosal changes over time.

Main Results:

• All patients presented with acute diffuse colitis.
• Exudative inflammation, hemorrhage, and microerosions were observed up to day 10.
• Catarrhal inflammation was noted during convalescence (days 10-16).
• A key finding was abundant eosinophilic leukocyte infiltration in the tunica propria, differentiating it from Shigella colitis.
• Complete mucosal normalization was not achieved within the 16-day observation period.

Conclusions:

• Colon campylobacteriosis is characterized by acute diffuse colitis with specific histopathological features.
• The presence of eosinophilic leukocytes and diffuse inflammation aids in differentiating it from Shigella colitis.
• Mucosal healing is a prolonged process, extending beyond 16 days in observed cases.