Clinicopathological Features and Type of Surgery for Lynch Syndrome: Changes during the Past Two Decades.
- Author:
Il Tae SON
1
;
Duck Woo KIM
;
Seung Yong JEONG
;
Young Kyoung SHIN
;
Myong Hoon IHN
;
Heung Kwon OH
;
Sung Bum KANG
;
Kyu Joo PARK
;
Jae Hwan OH
;
Ja Lok KU
;
Jae Gahb PARK
Author Information
- Publication Type:Original Article
- Keywords: Registration; Hereditary nonpolyposis colorectal neoplasms; Lynch syndrome
- MeSH: Colorectal Neoplasms; Colorectal Neoplasms, Hereditary Nonpolyposis*; Diagnosis; Humans; Korea; Neoplastic Syndromes, Hereditary; Registries; Retrospective Studies
- From:Cancer Research and Treatment 2016;48(2):605-611
- CountryRepublic of Korea
- Language:English
- Abstract: PURPOSE: The Korean Hereditary Tumor Registry, the first and one of the largest registries of hereditary tumors in Korea, has registered about 500 families with hereditary cancer syndromes. This study evaluates the temporal changes in clinicopathologic features and surgical patterns of Lynch syndrome (LS) patients. MATERIALS AND METHODS: Data on 182 unrelated LS patients were collected retrospectively. The patients were divided into the period 1 group (registered in 1990-2004) and 2 (registered in 2005-2014). The clinical characteristics of the two groups were compared to identify changes over time. RESULTS: The period 1 group included 76 patients; the period 2 group, 106 patients. The mean ages at diagnosis were 45.1 years (range, 13 to 85 years) for group 1 and 49.7 years (range, 20 to 84 years) for group 2 (p=0.015). The TNM stage at diagnosis did not differ significantly-period 1 group: stage 0-I (n=18, 23.7%), II (n=37, 48.7%), III (n=19, 25.0%), and IV (n=2, 2.6%); period 2 group: stage 0-I (n=30, 28.3%), II (n=35, 33.0%), III (n=37, 34.9%), and IV (n=4, 3.8%). Extended resection was more frequently performed (55/76, 72.4%) in the period 1 group than period 2 (49/106, 46.2%) (p=0.001). CONCLUSION: Colorectal cancer in patients with LS registered at the Korean Hereditary Tumor Registry is still diagnosed at an advanced stage, more than two decades after registry's establishment. Segmental resection was more frequently performed in the past decade. A prompt nationwide effort to raise public awareness of hereditary colorectal cancer and to support hereditary cancer registries is required in Korea.
