Histological evaluation of esophageal stricture in children with caustic burn

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OBJECTIVE

To analyze histological features of esophageal strictures in children with chemical burn following ingestion of household products containing sodium (potassium) hypochlorite, sodium (potassium) hydroxide.

MATERIAL AND METHODS

We analyzed 3 children with complicated caustic esophageal burns. Children at the time of swallowing the caustic were 26.3±4.1 months. Multiple dilatations of esophageal stricture were ineffective. Therefore, extirpation or subtotal resection of the esophagus and esophagocoloplasty were performed. We stained specimens using hematoxylin and eosin, as well as Masson’s trichrome.

RESULTS

Severe esophageal burns caused by sodium (potassium) hydroxide and/or sodium hypochlorite are followed by irreversible tissue lesions and non-dilatable stricture. Strictures are localized in the areas of physiological narrowing of the esophagus. The longest stricture follows ingestion of liquid substance. Histological properties include atrophy of glands and mucous membrane, muscle layer substitution by connective tissue and diffuse sclerosis of esophageal wall.

CONCLUSION

Non-dilatable esophageal stricture following caustic burn in children is due to irreversible morphological lesion of esophageal wall with mucous layer atrophy and sclerosis of all layers.

Keywords:

caustic burn of the esophagus

histology of esophageal stricture

children

Authors:

Voronetsky A.N.

Belarusian State Medical University

ORCID: 0000-0001-7091-376X

Gulenko A.V.

Alexandrov National Center of Oncology and Medical Radiology

ORCID: 0000-0003-3753-4340

Received:

25.05.2023

Accepted:

14.06.2023

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