A Case of Bilateral Trigeminal Amyloidoma Diagnosed Through an Endoscopic Transsphenoidal Approach

Amyloidosis is a systemic disease characterized by the accumulation of amyloid protein in multiple organs. Amyloidoma, in contrast, is an uncommon localized form of amyloidosis that presents as a single mass or tumor-like lesion. Primary amyloidoma in the central nervous system is rare, and only a few cases have been reported. Notably, the Gasserian ganglion is the most frequently affected site of amyloidoma in the central nervous system, and progressive trigeminal neuropathy is a characteristic finding. Among these cases, the bilateral occurrence of amyloidoma is exceedingly rare. In this report, we present the case of a 51-year-old woman diagnosed with bilateral trigeminal amyloidoma, confirmed by an endoscopic biopsy via the transsphenoidal approach.