Presentation + Paper
18 June 2024 Autofluorescence imaging of sporadic and basal cell nevus syndrome-associated basal cell carcinomas
Emilija V. Plorina, Alexey Lihachev, Norbert Kiss, Dmitrijs Bliznuks, Ilze Lihacova, Andras Banvolgyi
Author Affiliations +
Abstract
There is a need for a noninvasive diagnostic method for early detection of basal cell carcinoma which is the most common type of cancer in the general population. Basal cell nevus syndrome is a rare autosomal dominant disorder that increases predisposition to basal cell carcinoma, with a lower average age of onset and a higher number of lesions. Autofluorescence and autofluorescence photobleaching imaging is a potential approach to early diagnosis and determining whether an aggressive form of basal cell carcinoma is present earlier, however, the mechanism is still not fully understood. Investigation of basal cell nevus syndrome associated basal cell carcinoma autofluorescence intensity and autofluorescence photobleaching kinetics could assist in early detection and assessment of basal cell carcinoma in general.

An imaging device with 405 nm LED illumination at power density 7 mW/cm2 was used for cutaneous autofluorescence excitation. Autofluorescence photobleaching was detected by imaging under continuous irradiation for 20 seconds. It was found that on average basal cell carcinoma in patients with basal cell nevus syndrome has a lower autofluorescence intensity at the first second of excitation, as well as smaller decrease in intensity after 20 seconds of irradiation compared to sporadic basal cell carcinoma. This may show that basal cell carcinoma in patients with basal cell nevus syndrome have a different composition of endogenous fluorophores than in sporadic cases which could be investigated in further research.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Emilija V. Plorina, Alexey Lihachev, Norbert Kiss, Dmitrijs Bliznuks, Ilze Lihacova, and Andras Banvolgyi "Autofluorescence imaging of sporadic and basal cell nevus syndrome-associated basal cell carcinomas", Proc. SPIE 13009, Clinical Biophotonics III, 130090B (18 June 2024); https://doi.org/10.1117/12.3017449
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KEYWORDS
Skin

Basal cell carcinoma

Photobleaching

Fluorophores

Skin cancer

Autofluorescence

Autofluorescence imaging

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