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Organized Hematoma of the Maxillary Sinus: CT Findings

Ho Kyu Lee1, Wendy R. K. Smoker1, Bong-Jae Lee2, Sang Joon Kim3 and Kyung Ja Cho4

1 Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Dr., Iowa City, IA 52242.
2 Department of Otolaryngology, Asan Medical Center, Seoul, Korea.
3 Department of Radiology, Asan Medical Center, Seoul, Korea.
4 Department of Pathology, Asan Medical Center, Seoul, Korea.


Figure 1
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  		Fig. 1A —66-year-old man with recurrent epistaxis. Unenhanced axial CT scan shows expansile lesion of right maxillary sinus with erosion of medial, anterior, and posterior walls.

 

Figure 2
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  		Fig. 1B —66-year-old man with recurrent epistaxis. Contrast-enhanced axial CT scan shows patchy heterogeneous enhancement (arrowheads) within sinus.

 

Figure 3
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  		Fig. 1C —66-year-old man with recurrent epistaxis. Contrast-enhanced coronal CT scan shows expansile lesion of right maxillary sinus with erosion of medial and superior walls. Nasal cavity extension is evident with bowing of septum and extension into inferior orbit. Ipsilateral inferior ethmoid sinus has caused obstructive ethmoid sinusitis.

 

Figure 4
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  		Fig. 2A —73-year-old man with nasal obstruction. Contrast-enhanced axial CT scan shows areas of heterogeneous high density (arrowheads) scattered in maxillary sinus. Right maxillary sinus is expanded with erosion of medial wall and extension (arrow) into nasal cavity.

 

Figure 5
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  		Fig. 2B —73-year-old man with nasal obstruction. Contrast-enhanced coronal CT scan shows mild nasal septal deviation (arrow) toward left due to expanded maxillary sinus. Poorly circumscribed patchy enhancement (arrowheads) is evident.

 

Figure 6
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  		Fig. 3 —31-year-old man with recurrent epistaxis. Photomicrograph shows organized hematoma. Submucosal mass consists of fibrinous material and blood cells. Vascularization (arrows) and fibrosis (arrowheads) are evident in periphery. (H and E, x100)

 

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