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Abstract：
BACKGROUND: Characteristics and epidemiology of jaw tumours have been described mostly in adults. Compared with their adult counterparts, childhood jaw tumours show considerable differences. The aim of this study was to describe the different jaw tumours in children, define diagnostic tools to determine their specificity and describe optimal treatment.
METHODS: All children patients with jaw lesions, excluding cysts, apical granuloma and osteitis were included in our study between 1999 and 2009. The medical records were analyzed for clinical, radiological, and pathological findings, treatments and recurrences.
RESULTS: Mean patient age was 10.9 years old, ranging from 2 months to 18 years old. Of the 63 lesions, 18 were odontogenic and 45 non-odontogenic lesions. 6% of all cases were malignant tumours; the mean age of presentation was 7.25 years old, [ranging from 0.2 to 18 years old]. Approximately 80% of the tumours developed after 6 years of age. Odontogenic tumours occurred more often after the age of 6.
CONCLUSIONS: Compared with their adult counterpart, childhood jaw tumours show considerable differences in their clinical behaviour and radiological and pathological characteristics. Clinical features of some tumours can be specific to children. Tumourigenesis is related to dental development and facial growth. Conservative treatment should be considered.
METHODS: All children patients with jaw lesions, excluding cysts, apical granuloma and osteitis were included in our study between 1999 and 2009. The medical records were analyzed for clinical, radiological, and pathological findings, treatments and recurrences.
RESULTS: Mean patient age was 10.9 years old, ranging from 2 months to 18 years old. Of the 63 lesions, 18 were odontogenic and 45 non-odontogenic lesions. 6% of all cases were malignant tumours; the mean age of presentation was 7.25 years old, [ranging from 0.2 to 18 years old]. Approximately 80% of the tumours developed after 6 years of age. Odontogenic tumours occurred more often after the age of 6.
CONCLUSIONS: Compared with their adult counterpart, childhood jaw tumours show considerable differences in their clinical behaviour and radiological and pathological characteristics. Clinical features of some tumours can be specific to children. Tumourigenesis is related to dental development and facial growth. Conservative treatment should be considered.
摘要：
背景：颌骨肿瘤的特征和流行病学主要在成人中进行了描述。与成年人相比，儿童下颌肿瘤表现出相当大的差异。这项研究的目的是描述儿童的不同颌骨肿瘤，定义诊断工具以确定其特异性并描述最佳治疗。
方法：所有儿童颌骨病变，不包括囊肿，根尖肉芽肿和骨炎纳入我们1999年至2009年的研究.对病历进行了临床分析，放射学,和病理结果，治疗和复发。
结果：患者平均年龄为10.9岁，从2个月到18岁不等。在63个病灶中,牙源性病变18例，非牙源性病变45例。所有病例中有6％是恶性肿瘤；平均年龄为7.25岁，[从0.2到18岁不等]。大约80%的肿瘤在6岁后发展。牙源性肿瘤更常见于6岁以后。
结论：与成人相比，儿童下颌肿瘤在临床行为，放射学和病理学特征上表现出相当大的差异。一些肿瘤的临床特征可能是儿童特有的。肿瘤发生与牙齿发育和面部发育有关。应考虑保守治疗。
方法：所有儿童颌骨病变，不包括囊肿，根尖肉芽肿和骨炎纳入我们1999年至2009年的研究.对病历进行了临床分析，放射学,和病理结果，治疗和复发。
结果：患者平均年龄为10.9岁，从2个月到18岁不等。在63个病灶中,牙源性病变18例，非牙源性病变45例。所有病例中有6％是恶性肿瘤；平均年龄为7.25岁，[从0.2到18岁不等]。大约80%的肿瘤在6岁后发展。牙源性肿瘤更常见于6岁以后。
结论：与成人相比，儿童下颌肿瘤在临床行为，放射学和病理学特征上表现出相当大的差异。一些肿瘤的临床特征可能是儿童特有的。肿瘤发生与牙齿发育和面部发育有关。应考虑保守治疗。
