Clin Exp Otorhinolaryngol.  2014 Sep;7(3):226-228. 10.3342/ceo.2014.7.3.226.

Maxillary Sinus Retention Cysts Protruding Into the Inferior Meatus

• Hong SL
• Cho KS
• Roh HJ

• KMID: 1973475
• DOI: http://doi.org/10.3342/ceo.2014.7.3.226

Abstract

Although most of the maxillary sinus retention cysts are asymptomatic, a few of them increase in size and cause symptoms. However, they rarely erode bony walls nor protrude into the inferior meatus. I present 2 cases with maxillary sinus retention cysts protruding into the inferior meatus by making a large defect on the medial wall of the maxillary sinus.

Keyword

Maxillary sinus; Cysts

MeSH Terms

Cytochrome P-450 CYP1A1
Maxillary Sinus*
Cytochrome P-450 CYP1A1

Figure

• 

  Fig. 1 Findings of computed tomogram and nasal endoscopy in the first patient. There is a non-enhancing mass occupying most of maxillary and protruding into the inferior meatus through the defect on the medial wall of maxillary sinus (MS) (A, B). He had osteotomy lines on the lateral walls of both MSs (B). Endoscopic examination revealed a cystic mass occupying the left inferior meatus (C). There remained a large defect with a clear margin on the medial wall of MS (D).

• 

  Fig. 2 Findings of computed tomogram and nasal endoscopy in the second patient. There is a non-enhancing mass occupying most of maxillary and protruding into the inferior meatus through the defect on the medial wall of maxillary sinus (MS) (A, B). He had a retention cyst confined to the right MS and a 4 mm-sized hole on the medial wall of this sinus (B). Endoscopic examination revealed a cystic mass occupying the left inferior meatus (C). There remained a large defect with a clear margin on the medial wall of MS (D).

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