PERIPHERAL DENTINOGENIC GHOST CELL TUMOR: A RARE CASE REPORT

Abstract

Peripheral dentinogenic ghost cell tumor (PDGCT) is a rare and locally infiltrating benign odontogenic tumor with only 20 cases reported in the literature. A 75-year-old woman with total dental prosthesis had a nodular and fibrous lesion of 3 mm, normochromic, and sessile with a year of evolution near tooth 38. The clinical hypothesis was inflammatory fibrous hyperplasia, and an excisional biopsy was made. Microscopically, nests of odontogenic epithelium were observed in which the periphery exhibited palisaded columnar cells with a loose central area similar to the stellate reticulum. In addition, squamous metaplasia and sometimes fused phantom cells were observed. The stroma composed of dense fibrous connective tissue had few mononuclear inflammatory cells, and the lesion was merged with the surface parakeratinized stratified squamous epithelium. Thus, the diagnosis of peripheral PDGCT was stated. The patient is under follow-up without showing signs of recurrence after 5 months.