Melanoma in Iranian Childhood and Adolescence: An Analysis of 14 Patients

Background: Skin cancer is the most common cancer in Iran. Given the importance of early diagnosis in treating early tumors, knowledge of the demographic and pathological findings of the disease is helpful. Objectives: The aim of present study was to investigate the incidence, trend and risk factors of melanoma in Iranian childhood and adolescents. Methods: The present retrospective study was performed between 2005 and 2013 on registered data in the National Cancer Registry System, Iran. The age group studied was patients 18 years or younger. Data included demographic status, risk factors, clinical and histopathological characteristics, and stage. Results: The results showed that 8 (57.1%) of 14 patients were males. The mean age of the study population was 8.71 ± 6.02 years (range, 1-15 years). Ten (71.4%) patients were of Fars ethnic groups. In terms of tumor invasiveness, 13 (92.9%) patients were invasive and one (7.1%) patient was in situ. The growth phase of melanoma was vertical in 13 (92.9%) patients and radial phase in one (7.1%) patient. In terms of lymph node metastasis, it was observed in only one patient. Surgical treatment was performed on all patients. Melanoma histology was nodular in 3 patients and unspecified or unregistered in the rest. The most area of the tumor was in the head/neck and lower limbs. Conclusions: According to the results, regardless of the differences in the specific coverage of the Iranian people, the distribution and statistical characteristics of malignant melanoma in Iran are almost similar to other countries in the world. Wider studies are recommended to confirm the findings of the present study.