Vol. 70 No. 4 (2018)
Original Articles

Carcinoma of squamous cells of skin. Series of cases

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  • Osvaldo Iribarren B.,
  • Muriel Ramírez S.,
  • Juan A. Madariaga G.,
  • Óscar Riveros F.,
  • Claudia Valdés V.,
  • Javiera Toledo S.
Osvaldo Iribarren B.
Hospital San Pablo; Universidad Católica del Norte
Muriel Ramírez S.
Universidad Católica del Norte
Juan A. Madariaga G.
Hospital San Pablo; Universidad Católica del Norte
Óscar Riveros F.
Universidad Católica del Norte
Claudia Valdés V.
Universidad Católica del Norte
Javiera Toledo S.
Universidad Católica del Norte

Published 2018-08-08

Keywords

How to Cite

1.
Iribarren B. O, Ramírez S. M, Madariaga G. JA, Riveros F. Óscar, Valdés V. C, Toledo S. J. Carcinoma of squamous cells of skin. Series of cases. Rev Cir. [Internet]. 2018 Aug. 8 [cited 2026 Sep. 5];70(4). Available from: https://www.revistacirugia.cl/index.php/revistacirugia/article/view/259
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Abstract

Introduction: Squamous skin cancer (SSC) is the second most frequent skin cáncer, nevertheless reports about this issue are not published in Chile. Objetive: To investigate social, demographics, and clinic characteristics of SSC in semidesertic Coquimbo Region, Chile.

Material and Methods: serie of patients diagnosed and treated in Coquimbo hospital between January 2006 and December 2015. Inclussion criteria: 1.- histopathological confirmation of SSC. Exclusion criteria: 1.- follow up lesser than 12 months; 2.- operated in another hospital; 3.- submitted to another treatment prior to surgery; 4.- skin metastasis of mucous squamous carcinoma; 5.- patients with distant metástasis. Independent variables: age, gender, tumor site, tumor size, clinical lymph nodes, shore or valley residency. Dependent variable: recurrency frecuence, factors of recurrency, letality. Statistical analysis: descriptive and analytical by SSPS program.

Results: 2.202 skin cancer cases were registered, 1.487 basal cells carcinoma (67.5%), 181 melanoma (8.2%) and 534 squamous cells carcinoma (24.2%). 236 patients with complete data are included in this report. There were 153 men (64.8%), and 83 women (35.2%). Mean age was 75.5 years old ± 11.7 (range 46-94). Primary site was: head 158 patients (66.9%), other sun exposed areas 47 patients (20%), and non exposed areas 31 patients. Cheek and front were the most frequents head site with 40 cases (25%) and 29 cases (12.3%), respectively. In 119 cases (50.4%) SCC was ulcerated, and 117 cases was not; primary tumor diameter was 22 millimeters (range 3-100). Clinical lymph nodes were primarily positives in 10 patients, (4.2%). In 12 cases with negative lymph nodes, sentinel limph node was resected. 2 were positives. Histological borders were tumor free in 201 patients (85.2%) and, 35 cases (14.8%) had positive histological borders. Local recurrence incidence was 8.5% (20 cases). Limph nodes recurrence was 2.1% (5 cases). Cancer recurrence was associated with histological positive borders P = 0.001, IC 95% 3.12- 12.19, and ulcerated tumor p = 0.01, OR 4.63; IC 1.59-13.50. Letality was 2.56%. Mean follow up was 36 months (range 12-228 months).

Conclusions: SSC has a good prognosis when primary tumor is resected early, with free histological borders resection.

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