Biopsy material obtained from thickened nasal mucosa of a 29-year-old woman who has problems with nasal bleeding,contains clusters of lymphocytes, plasma cells,and epithelioid cells,among Wchich there are numerous round hyaline inclusions(Russel bodies)and large macrophages with pale cytoplasm (Mikulicz cells). What type of inflammation developed in the patient's nasal mucosa?