[Morphologic manifestations of variants of scarring of extensive corrosive stomach ulcer after laser therapy].
Scarring of corrosive stomach ulcers under conditions of their Helium-Neon endoscopic laser therapy was studied in 512 gastrobiopsies from 34 patients. Early and regular laser therapy results in ulcer healing without a pronounced stage of leukocytic melting of necrotic tissues. Ulcer healing is accelerated and results in the formation of a fine scar with an active involvement of lymphocytes at all stages. The absence of a grave purulent inflammation at early stages, predominance of mature fibroblasts, thin-walled vessels and evenly distributed collagen bundles at later stages seem to prove that laser therapy facilitates synchronization of the connective tissue cell activity, thus making regeneration of the epithelium more perfect.
Galankina
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IE
Volkov
S V
SV
D000328:Adult; D001706:Biopsy; D002921:Cicatrix / Q000209:etiology / Q000473:pathology*; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D005260:Female; D006801:Humans; D053685:Laser Therapy / Q000009:adverse effects*; D008214:Lymphocytes / Q000473:pathology; D008297:Male; D008875:Middle Aged; D013276:Stomach Ulcer / Q000473:pathology* / Q000601:surgery; D014945:Wound Healing / Q000502:physiology