Extramedullary plasmacytoma (EMP) are often located in the head and neck region, commonly affecting the nasal cavity, tonsillar fossa and oral cavity but rarely the retropharyngeal space. In this report, a 60-year-old woman with large EMP in the retropharyngeal space is presented, who was diagnosed by pathology, bone marrow aspirate and computed tomography scan. The patient received operation and postoperative radiotherapy with dose of 50 Gy. At sixteen months follow-up, the patient was doing well with no signs of recurrence.
Female ; Humans ; Middle Aged ; Nasal Cavity ; pathology ; Plasmacytoma ; pathology ; radiotherapy ; surgery ; Tomography, X-Ray Computed

Although Rosai-Dorfman disease is a rare disorder characterized by proliferation of distinctive histiocytes within lymph node sinuses and lymphatics, sometimes involving extranodal sites, the nasal cavity and pharyngeal cavity are rarely involved additional. In this report, a 22-year old man with multiple subcutaneous lumps and submucosal lumps in bilateral nasal cavity and pharyngeal cavity is presented, which was diagnosed by nasopharyngeal endoscope,computed tomography scan and biopsy. The subcutaneous lumps were ablated and prednisone was accepted for three months as preventive therapy.
Histiocytosis, Sinus ; pathology ; Humans ; Male ; Nasal Cavity ; pathology ; Pharynx ; pathology ; Subcutaneous Tissue ; pathology ; Young Adult