Abstract
Background: The etiology of tracheobronchial tree subepithelial pigment spots, detected by endoscopic examination, has not been yet finally established. Some authors attribute them to an active tuberculous process or its outcome; other researchers suggest their association with the professional pathology. Aim: To study the detection rate and etiology of tracheobronchial tree subepithelial pigmented spots within the unspecialized bronchoscopic examination. Materials and methods: A total of 3404 primary therapeutic and diagnostic bronchoscopic data were analyzed. The examinations were conducted using bronchoscopes ВF-1T60 and MAF-TM (Olympus, Japan). Endobronchial photos were performed using a bronchoscope MAF-TM. Results: During the study, the subepithelial pigment spots were detected in 20 (0.59%) cases. In none of these cases, an active tuberculous process or professional pathology was confirmed. Fistulas in projection of subepithelial pigmented spots were found in 3 cases. Conclusions: Detection rate of subepithelial pigmented spots during the non-specialized bronchoscopic procedure is low, less than 1% (0.59% in our study). Clinical, laboratory, instrumental, and anamnestic analyses allowed us to associate the studied pathology with the previous tuberculosis of intrathoracic lymph nodes.
Highlights
The etiology of tracheobronchial tree subepithelial pigment spots, detected by endoscopic examination, has not been yet established
Some authors attribute them to an active tuberculous process or its outcome; other researchers suggest their association with the professional pathology
[Zhingel’ I.P. Bronchial tuberculosis – a problem of pathogenesis and differential diagnostics
Summary
Чапаевская, 89, Российская Федерация ГБУЗ Самарской области «Самарская городская больница No4»; 443056, г. Этиология выявляемых при эндоскопическом осмотре пигментных пятен слизистой трахеобронхиального дерева окончательно не установлена. Ряд авторов связывает их с активным туберкулезным процессом или его исходом; другие исследователи указывают на связь с профессиональной патологией. Цель – изучить в рамках общего бронхологического приема частоту выявления и этиологическую принадлежность суб эпителиальных пигментных пятен. В процессе исследования у 20 (0,59%) пациентов были выявлены субэпителиальные пигментные пятна. Ни в одном из этих случаев не был подтвержден активный туберкулезный процесс или профессиональная патология. У трех пациентов были выявлены свищевые устья в проекции субэпителиальных пигментных пятен. Выявляемость субэпителиальных пигментных пятен в структуре общего бронхологического приема невелика – менее 1% (в нашем исследовании – 0,59%). Ключевые слова: гибкая бронхоскопия, субэпителиальные пигментные пятна трахеобронхиального дерева. Samara State Medical University; 89 Chapaevskаya ul., 443099 Samara, Russian Federation Samara City Hospital No.4; 125 Michurina ul., 443056 Samara, Russian Federation
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