title: [Retrospective analysis for clinical and histopathological characteristics of basal cell carcinoma in 418 patients].
abstract: OBJECTIVE
  To investigate the clinical and histopathological characteristics of basal cell carcinoma (BCC) in Chinese patients.
  
  
  METHODS
  Clinical and pathological data of BCC confirmed by histology from 2010 to 2012 in Peking University First Hospital were retrospectively analyzed.
  
  
  RESULTS
  Among 418 patients enrolled, the male/female ratio was 0.77:1. The average age was (65.39±13.51) years. Among the patients younger than 60 years who occupied 29% of all the cases, the male/female ratio was 1.16:1. In terms of the histology subtypes of the BCCs, 81.8% were nodular, followed by superficial (9.8%), and the others were in very small proportion. The head and face were the most common sites of BCC (86.6%). All morpheaform subtypes, and the majority of the nodular subtypes were located on the head and face, whereas the trunk and extremities were the most common locations for the others. Clinically, 86.6% of the BCC were pigmented and 80.4% were not ulcerated. The diagnostic accordance rates of BCC on the head and face (84.7%) and on the trunk (79.1%) were higher than those on the extremities (46.2%, P<0.05).
  
  
  CONCLUSIONS
  The most clinical and histopathological characteristics of our cases were similar to those of Caucasian. This study displays some unique characteristics. The young and middle aged patients occupied relative higher proportion, and their gender ration was different from that of the aged group. Tumor with hyperpigmentation was popular and few cases were ulcerated. In this study, multiple BCC cases were seldom, and the BCC patients with nevus sebaceous were older than those in other reports. The research of the diagnostic accordance rates of BCC revealed that both doctors and patients should pay more attention to BCC.
authors.affiliation: Department of Dermatology, Peking University First Hospital, Beijing 100034, China; Department of Dermatology, Zhengzhou Central Hospital, Zhengzhou 450007, China.
authors.forename: Zi-xue
authors.initials: ZX
authors.lastname: Chen
authors.affiliation: Department of Dermatology, Peking University First Hospital, Beijing 100034, China.
authors.forename: Mei-shan
authors.initials: MS
authors.lastname: Zhou
authors.affiliation: Department of Dermatology, Peking University First Hospital, Beijing 100034, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Tu
authors.affiliation: Department of Biostatistics, Peking University First Hospital, Beijing 100034, China.
authors.forename: Xue-ying
authors.initials: XY
authors.lastname: Li
authors.affiliation: Department of Dermatology, Peking University First Hospital, Beijing 100034, China.
authors.forename: Shu-xia
authors.initials: SX
authors.lastname: Yang
authors.affiliation: Department of Dermatology, Peking University First Hospital, Beijing 100034, China.
authors.forename: Yuan-shen
authors.initials: YS
authors.lastname: Huang
authors.affiliation: Department of Dermatology, Peking University First Hospital, Beijing 100034, China.
authors.forename: Hang
authors.initials: H
authors.lastname: Li
mesh_terms: D000368:Aged; D002280:Basal Cell Carcinoma / Q000473:pathology*; D005121:Extremities / Q000473:pathology; D005145:Face / Q000473:pathology; D005260:Female; D006257:Head / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012878:Skin Neoplasms / Q000473:pathology*