Plasmocytoma and Rhabdomyoma of the Paranasal Sinuses: Pathologic and Surgical Considerations; Report of Cases

Attention has been drawn in recent years to a considerable number of reported cases of a comparatively rare form of myeloma which occurs in various parts of the upper respiratory tract, resembling histologically the multiple myelomas commonly found in the long bones but differing clinically in many respects. The growths are designated as solitary plasmocytomas and pathologically may be classified as malignant lymphomas, of which the multiple myeloma and solitary plasmocytoma represent subgroups. Many cases of multiple myelomas are already on record (Walgren1reported one hundred and twenty-five occurring in the long bones, of which thirty-five were of a definite plasma cell structure), and many other cases have occurred since then while only comparatively few cases of solitary plasmocytoma have been reported. The great majority of these solitary plasmocytomas have occurred in the upper respiratory tract, principally in the nose and pharynx, and because of their solitary nature they