Systemic amyloidosis presents a huge amyloidoma in the nasopharynx: A case report

摘要

A tumor-like presentation of systemic amyloidosis in the nasopharynx is exceedingly rare. A male of 52-year-old with a recurrent mass in the nasopharynx underwent surgical resection 2 years ago. Immunohistochemical examination revealed M protein band and kappa immunoglobulin light chain. The sections of the biopsy of the mass in the nasopharynx and anterior abdominal wall were stained with Congo red and examined with microscopy. Amyloid deposits were found. It was diagnosed as systemic amyloidoma. Colchicine, melphalan and prednisone were administered. The mass decreased its size in the 8 months of follow-up. This case suggests that a solitary tumor in the nasopharynx might be an early sign of systemic amyloidosis because of the slow progression of the disease. The existence of a solitary amyloidoma in any location of the body should lead the doctor to look for other symptoms and signs of systemic amyloidosis.