J Endod. 2020 Oct 9:S0099-2399(20)30759-7. doi: 10.1016/j.joen.2020.09.020. Online ahead of print.
Extranodal MALT (mucosa associated lymphoid tissue) lymphoma is a rare oral disease. This case report describes a 71- year old female who presented for endodontic evaluation and treatment for a right posterior palatal swelling. The case details the evaluation and diagnostic processes and treatment course. The case report draws attention to the importance of performing a biopsy, having proper sampling, and the additional steps sometimes required to arrive at a definitive diagnosis. This case
report is the first to document a definitive low-grade B cell MALT lymphoma mimicking endodontic pathology. The case demonstrates the importance of proper examination, clinical imaging and pathological testing to arrive at a definitive diagnosis. It highlights that collaboration with other medical and dental specialties is essential for appropriate diagnosis and treatment and describes the "button hole" diagnostic strategy.