上顎洞に発生した炎症性偽腫瘍の2例  [in Japanese] Two Cases of Inflammatory Pseudotumor of the Maxillary Sinus  [in Japanese]

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Author(s)

Abstract

We report two cases of inflammatory Pseudotumor of the maxillary sinus. Inflammatory pseudotumor of the paranasal sinus is a rare lesion, simulating a malignant tumor clinically. The first patient was a 40-year-old male complaining of trismus and left jaw pain. The other was a 41-year-old female complaining of trismus and right cheek swelling. CT scan and MRI findings revealed a mass of soft tissue density extending from the unilateral maxillary sinus to the infratemporal fossa with destruction of the maxillary bony wall in both patients. Histopathological examination of the tumors showed diffuse infiltration of plasma and other inflammatory cells, such as lymphocytes and histiocytes in the fibrous stroma. Immunohistochemical study demonstrated the polyclonal nature of the plasma cells. Because steroids were not effective in these cases, partial maxillectomy and coronoidectomy were performed under general anesthesia. We successfully treated trismus during the postoperative courses and there has been no regrowth of the masses.

Journal

  • Practica Oto-Rhino-Laryngologica

    Practica Oto-Rhino-Laryngologica 95(5), 481-486, 2002-05-01

    The Society of Practical Otolaryngology

References:  21

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008382703
  • NII NACSIS-CAT ID (NCID)
    AN00107089
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    00326313
  • NDL Article ID
    6154821
  • NDL Source Classification
    ZS43(科学技術--医学--耳鼻咽喉科学)
  • NDL Call No.
    Z19-421
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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