Sridhar Meela, Bhaskar Reddy L Raja, Kharat Sagar, Mahesh B S, Gandi Lakshmi, Mahendra Ashish, Nigam Pankhuri, Grewal Parveen
Department of Oral and Maxillofacial Surgery, HKDET's Dental College, Humnabad, Bidar, Karnataka, India.
Department of Oral Medicine and Radiology, Kalinga Institute of Dental Sciences, Bhuvneswar, India.
Niger J Surg. 2015 Jan-Jun;21(1):66-9. doi: 10.4103/1117-6806.152730.
Ameloblastomas are an inscrutable group of oral tumors. Basal cell ameloblastoma is a rare variant of ameloblastoma with very few cases reported until date. The tumor is composed of more primitive cells and has less conspicuous peripheral palisading. It shows remarkable similarity to basal cell carcinoma, basal cell adenoma and intra-osseous adenoid cystic carcinoma. This report describes the case of a 27-year-old male with an ameloblastoma in the right posterior mandible. Orthopantomography computed tomography and finally histopathological examination directed us toward the confirmatory diagnosis of basal cell variant of ameloblastoma. Considering the rarity of the lesion and histological paradox regarding its diagnosis, we report here an interesting and rare case of basal cell ameloblastoma of the mandible with emphasis on differential diagnosis from other entities with basaloid differentiation having varying prognosis. After surgery, long-term follow-up at regular intervals is recommended as no sufficient statistical information regarding the behavior of this tumor is available.
成釉细胞瘤是一组难以捉摸的口腔肿瘤。基底细胞型成釉细胞瘤是成釉细胞瘤的一种罕见变异型，迄今为止报道的病例极少。该肿瘤由更原始的细胞组成，外周栅栏状结构不明显。它与基底细胞癌、基底细胞腺瘤和骨内腺样囊性癌有显著相似性。本报告描述了一例27岁男性右下颌后份成釉细胞瘤的病例。全景体层摄影术、计算机断层扫描以及最终的组织病理学检查引导我们确诊为基底细胞型成釉细胞瘤。鉴于该病变的罕见性及其诊断方面的组织学矛盾，我们在此报告一例有趣且罕见的下颌基底细胞型成釉细胞瘤病例，重点在于与其他具有不同预后的基底样分化实体进行鉴别诊断。手术后，建议定期进行长期随访，因为目前尚无关于该肿瘤行为的充分统计信息。
