Recent trend in the incidence of premalignant and malignant skin lesions in Korea between 1991 and 2006.
We evaluated the recent trend in the incidence of premalignant and malignant skin lesions between 1991 and 2006. Among 571,057 newly registered dermatology out-patients from our 8 affiliated university hospitals, 2,598 were diagnosed with a premalignant (899, 0.16%) or malignant skin lesions (1,699, 0.30%). Of 899 premalignant cases, 71.2% were actinic keratosis (AK), and 24.6% were Bowen's disease. Of 1,699 malignant cases, 46.2% were basal cell carcinoma, followed by squamous cell carcinoma (19.1%) and melanoma (7.1%). This 16-yr survey was divided equally into two time periods to compare the incidence of premalignant and malignant skin lesions at different time settings. Between 1991 and 1998, the incidence of cutaneous premalignancy was 0.10% which doubled during 1999-2006. For cutaneous malignancy, the incidence was 0.25% during 1991-1998 and 0.34% in 1999-2006. Incidence of AK among the new outpatients was 0.07% in 1991-1998 which staggered up to 0.15% in 1999-2006. These findings show an increase of both premalignant and malignant skin lesions, AK in particular in the dermatology outpatient-based incidence.
Kim
Hei Sung
HS
Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Cho
Eun Ah
EA
Bae
Jung Min
JM
Yu
Dong Soo
DS
Oh
Shin Taek
ST
Kang
Hoon
H
Park
Chul Jong
CJ
Lee
Jeong Deuk
JD
Lee
Jun Young
JY
Kim
Si-Yong
SY
Kim
Hyung Ok
HO
Park
Young Min
YM
D001913:Bowen's Disease / Q000453:epidemiology; D002280:Basal Cell Carcinoma / Q000453:epidemiology; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D055623:Keratosis, Actinic / Q000453:epidemiology; D008545:Melanoma / Q000453:epidemiology; D011230:Precancerous Conditions / Q000175:diagnosis / Q000453:epidemiology*; D056910:Republic of Korea / Q000453:epidemiology; D012878:Skin Neoplasms / Q000175:diagnosis / Q000453:epidemiology*