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Prevalence, molecular markers, and outcome of bronchial squamous carcinoma in situ in high-risk subjects

Prevalence, molecular markers, and outcome of bronchial squamous carcinoma in situ in high-risk subjects


Title: Prevalence, molecular markers, and outcome of bronchial squamous carcinoma in situ in high-risk subjects
Author: Jónsson, Steinn
Franklin, Wilbur A.
Varella-Garcia, Marileila
Kennedy, Timothy C.
Merrick, Daniel
Matney, Kathryn D.
Oskarsdottir, Gudrun N.
Saemundsson, Arni   orcid.org/0000-0001-7966-0578
Keith, Robert L.
Bunn, Paul A.
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Date: 2023-10
Language: English
Scope: 15
University/Institute: Landspitali - The National University Hospital of Iceland
Department: Faculty of Medicine
Series: APMIS; 131(10)
ISSN: 0903-4641
DOI: 10.1111/apm.13345
Subject: Lungnalæknisfræði; Bronchial; carcinoma; in situ carcinoma; molecular markers; outcome; Carcinoma, Squamous Cell/epidemiology; Prevalence; Prospective Studies; Biopsy; Humans; Biomarkers; Pathology and Forensic Medicine; Immunology and Allergy; Microbiology (medical)
URI: https://hdl.handle.net/20.500.11815/4521

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Citation:

Jónsson , S , Franklin , W A , Varella-Garcia , M , Kennedy , T C , Merrick , D , Matney , K D , Oskarsdottir , G N , Saemundsson , A , Keith , R L , Bunn , P A & Miller , Y E 2023 , ' Prevalence, molecular markers, and outcome of bronchial squamous carcinoma in situ in high-risk subjects ' , APMIS , vol. 131 , no. 10 , pp. 513-527 . https://doi.org/10.1111/apm.13345

Abstract:

Bronchial squamous carcinoma in situ (CIS) is a preinvasive lesion that is thought to precede invasive carcinoma. We conducted prospective autofluorescence and white light bronchoscopy trials between 1992 and 2016 to assess the prevalence, molecular markers, and outcome of individuals with CIS and other preneoplastic bronchial lesions. Biopsies were evaluated at multiple levels and selected biopsies were tested for aneuploidy and DNA sequenced for TP53 mutation. Thirty-one individuals with CIS were identified. Twenty-two cases of CIS occurred in association with concurrent invasive carcinomas. Seven of the invasive tumors were radiographically occult. In two cases, CIS spread from the focus of invasive carcinoma into contralateral lung lobes, forming secondary invasive tumors. In nine cases, CIS occurred as isolated lesions and one progressed to invasive squamous carcinoma at the same site 40 months after discovery. In a second case, CIS was a precursor of carcinoma at a separate site in a different lobe. In seven cases CIS regressed to a lower grade or disappeared. High level chromosomal aneusomy was often associated with TP53 mutation and with invasive carcinoma. CIS most often occurs in association with invasive squamous carcinoma and may extend along the airways into distant lobes. In rare cases, CIS may be observed to directly transform into invasive carcinoma. CIS may be indicative of invasive tumor at a separate distant site. Isolated CIS may regress. Molecular changes parallel histological changes in CIS and may be used to map clonal expansion in the airways.

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Publisher Copyright: © 2023 The Authors. APMIS published by John Wiley & Sons Ltd on behalf of Scandinavian Societies for Pathology, Medical Microbiology and Immunology. © 2023 The Authors. APMIS published by John Wiley & Sons Ltd on behalf of Scandinavian Societies for Pathology, Medical Microbiology and Immunology.

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