Macro and microscopic study of a rare case of Papilliferous Keratoameloblastoma using a stereo zoom microscope Jacob M, Rajathi P, Mathew M, Fenn SM, - Indian J Pathol Microbiol

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Macro and microscopic study of a rare case of Papilliferous Keratoameloblastoma using a stereo zoom microscope Mathew Jacob¹, P Rajathi¹, Melwin Mathew², Saramma Mathew Fenn³ ¹ Department of Oral Pathology and Oral Microbiology, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), NH-47, Sankari Main road, Ariyanoor, Salem, Tamil Nadu, India ² Department of Periodontics and Oral Implantology, Manipal University College, Malaysia ³ Department of Oral Medicine and Radiology, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), NH-47, Sankari Main Road, Ariyanoor, Salem, Tamil Nadu, India Correspondence Address: Mathew Jacob, Department of Oral Pathology and Oral Microbiology, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission's Research Foundation (Deemed to be University), NH-47, Sankari Main Road, Ariyanoor, Salem - 636308, Tamil Nadu India Source of Support: None, Conflict of Interest: None DOI: 10.4103/ijpm.ijpm_714_21

Papilliferous keratoameloblastoma is an extremely rare variant of ameloblastoma, a benign odontogenic tumor, with only seven cases reported in the English language literature. This variant presents with the metaplastic transformation of stellate reticulum-like cells to the extent of forming papillary structures exhibiting superficial keratinization of varying thickness. This paper describes the pathognomonic macroscopic features of this tumor observed during gross examination under the stereo zoom microscope that differentiate it from the other odontogenic tumors which have not been explored in the previously documented cases. Also, in this paper, a detailed comparison of the macroscopic features observed under the stereo zoom microscope during gross examination with the microscopic features of the histologic section has been described proving to be useful in the histological differential diagnosis of the keratinizing variants of ameloblastoma.

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