Related Experiment Video
Updated: Mar 21, 2026
08:07
Author Spotlight: Advancing Antiviral Strategies Through Novel Immunocapture and Mass Spectrometry Techniques
Published on: January 12, 2024
1.4K
Merkel cell carcinoma incidence is increasing in Sweden
O Zaar1, M Gillstedt2, B Lindelöf3
1Department of Dermatology and Venereology, Sahlgrenska University Hospital, Institute of Clinical Sciences at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. oscar.zaar@vgregion.se.
Summary
Merkel cell carcinoma (MCC) incidence in Sweden is increasing, particularly in men, with most cases on the head and neck. High age and UV exposure are confirmed risk factors for this rare skin cancer.
Area of Science:
- Oncology
- Dermatology
- Epidemiology
Background:
- Merkel cell carcinoma (MCC) is a rare, aggressive neuroendocrine skin cancer with high mortality and recurrence rates.
- Known risk factors include advanced age, UV radiation exposure, fair skin type, and immunosuppression.
- The incidence of MCC has been reported to be on the rise globally.
Purpose of the Study:
- To determine the incidence of Merkel cell carcinoma (MCC) in Sweden.
- To describe the clinical characteristics of MCC cases within a Swedish population.
- To analyze trends in MCC incidence over a 20-year period.
Main Methods:
- Retrospective cohort study utilizing population-based data from the Swedish Cancer Registry.
- Data collection spanned from 1993 to 2012, including de-identified patient information.
- Analysis encompassed demographics, TNM classification, tumor site, and overall survival.
Main Results:
- A total of 606 MCC cases were identified between 1993 and 2012.
- The overall incidence of MCC in Sweden increased by 73% during the study period, from 0.11 to 0.19 per 100,000 person-years.
- The head and neck region was the most common primary tumor site (51.8%), and the majority of tumors were smaller than 5 cm with limited lymphatic spread at diagnosis.
Conclusions:
- Merkel cell carcinoma (MCC) remains a rare malignancy in Sweden, but its incidence is significantly increasing.
- The study reinforces age, male sex, and UV exposure as key risk factors for MCC development.
- Increased awareness of MCC among healthcare professionals and the public is crucial for timely diagnosis and intervention.
