Korean J Otolaryngol-Head Neck Surg.  1998 Mar;41(3):396-400.

A Case of Pseudotumor of the Maxillary Sinus

  • 1Department of Otolaryngology, College of Medicine, Kyung-Hee University, Seoul, Korea. Daulnp@vnitel.Co.Kr


Pseudotumor is a term used to describe a space occupying inflammatory lesion which mimics a true neoplastic process in its clinical presentation and radiologic findings. Its occurrence in the maxillary sinus is rare. The etiology and pathophysiology of the maxillary pseudotumor is unknown. A large and longstanding pseudotumor may induce the erosion or destruction of the maxillary bone wall. Therefore it may be difficult to distinguish such a lesion from a malignant tumor, specific granulomatous disease (e.g. tuberculosis, sarcoidosis, Wegener's granulomatosis) and fungal sinusitis preoperatively. A diagnosis of maxillary pseudotumor must be based on histological evidence to exclude other disease. We report a case of a 49-year-old patient with left maxillary pseudotumor that simulated an aggressive neoplasm in its clinical presentation and radiologic findings.


Pseudotumor; Maxillary sinus
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