Analysis of the Skin Basocellular Carcinoma (BCC) Among the Smokers in Bosnia and Herzegovina

Tobacco smoking is associated with cutaneous squamous cell carcinoma but not with basal cell carcinoma or melanoma in adult subjects at risk of skin cancer: A cross-sectional study

INTRODUCTION

The relationship between tobacco smoking and cutaneous photodamage or malignancies is still unclear. In addition to smoking, both ultraviolet radiation and immunosuppression have an impact on carcinogenesis. The purpose was to study the association of smoking with cutaneous photoaging, actinic keratosis (AK), skin cancers, and pigment cell nevi in adult subjects at risk of any type of skin cancer.

METHODS

In this cross-sectional study at Kuopio University Hospital, Finland, between May 2017 and October 2020, 488 subjects (aged 21-79 years, 246 males and 242 females, 94 with immunosuppression) were examined for a variety of skin lesions, photoaging severity, nevi, tobacco pack-years (TPY), as well as for possible confounding factors.

RESULTS

In logistic regression analyses, no marked association was found between TPY and total skin photoaging, facial photoaging, AK, or nevi, especially when other confounding factors, such as age, were considered. In addition, TPY was not associated with melanoma, basal cell carcinoma, or any type of skin cancer. However, ever smokers produced an elevated crude odds ratio (OR=1.99; 95% CI: 1.02-3.88, p=0.043) for squamous cell carcinoma (SCC) compared to non-smokers. In further analysis, TPY of ≤10 produced an elevated multivariable adjusted odds ratio (AOR=4.90; 95% CI: 1.31-18.26, p=0.018) for SCC, but TPY >10 did not (AOR=1.14; 95% CI: 0.22-6.05, p=0.876).

CONCLUSIONS

Smoking was associated, though not dose-dependently, with an increased likelihood of SCC, but it was not associated with basal cell carcinoma or melanoma. However, the impact of smoking on cutaneous photoaging severity, AK, and nevi, appears to be weak.

Basal cell carcinoma: what new can be learned about the most common human cancer? A cross-sectional prospective study of 180 cases in a single centre

Introduction

Basal cell carcinoma (BCC) is the most common cancer in humans, but the reporting of patients with BCC is still not complete. There are a limited number of analyses in the literature on BCC epidemiology.

Aim

To study the epidemiological as well as clinical aspects of BCC by analysing a single centre’s experience in the Lower Silesia region of Poland.

Material and methods

We investigated 180 patients with BCC treated in the Unit of Dermatosurgery, Department of Dermatology, Venereology, and Allergology of Wroclaw Medical University between September 2017 and December 2019.

Results

The mean age of patients with BCC was 70.5 ±11.9 years. The most frequently diagnosed type of BCC was nodular type, at 72% of all patients. BCC occurred most commonly on the face and neck area, at 132 (73.3%), without a statistical difference between males and females. The vast majority of cancers were located on the nose. There was a personal history of skin cancer in 29% of our patients. In 127 (70.6%) subjects, the diameter of the BCC on the day of excision was less than 2 cm.

Conclusions

The clinical characteristics of our cohort of BCC patients has some similarities with that reported from central Poland and other European countries. However, we found an increase in the incidence of BCC among females.