Konda Paremala, Bavle Radhika Manoj, Muniswamappa Sudhakara, Makarla Soumya, Venugopal Reshma
Reader, Department of Oral Pathology, Krishnadevaraya College of Dental Sciences , Bengaluru, Karnataka, India .
Professor and Head, Department of Oral Pathology, Krishnadevaraya College of Dental Sciences , Bengaluru, Karnataka, India .
J Clin Diagn Res. 2016 Aug;10(8):ZD08-11. doi: 10.7860/JCDR/2016/18862.8232. Epub 2016 Aug 1.
Ameloblastomas are common odontogenic tumours that are benign and locally aggressive. Histopathologically, the tumor exhibits significant diversity with common and rare variants. Here, we report an unusual variant of a common odontogenic tumour in the mandibular posterior region on the right side in a 44-year old male patient. This is the sixth case of Papilliferous Keratoameloblastoma (PKA) to be reported in the English literature till date. More case reports are vital to determine the clinical, radiological, histopathological and behavioural aspects of this extremely rare histological type of ameloblastoma. This tumour awaits re-inclusion as a distinct entity in the future classifications of the WHO Classification of head and neck tumours upon further case accrual.
成釉细胞瘤是常见的牙源性肿瘤,为良性但具有局部侵袭性。在组织病理学上,该肿瘤表现出显著的多样性,包括常见和罕见的变异型。在此,我们报告一例发生于一名44岁男性患者右侧下颌后部区域的常见牙源性肿瘤的不寻常变异型。这是迄今为止英文文献中报道的第六例乳头状角化成釉细胞瘤(PKA)。更多的病例报告对于确定这种极其罕见的组织学类型的成釉细胞瘤的临床、放射学、组织病理学及生物学行为特征至关重要。随着更多病例的积累,该肿瘤有望在未来世界卫生组织头颈部肿瘤分类中重新被纳入为一个独特的实体。