Three Cases of Organized Hematoma of the Maxillary Sinus: Clinical Features and Immunohistological Studies for Vascular Endothelial Growth Factor and Vascular Endothelial Growth Factor Receptor 2 Expressions

Table 1

Clinical characteristics of the three cases.

Case	Age (y)/sex	Chief complaint	Side	Size (cm)	Surgical approach	Total blood loss (mL)	Operation time (min)
1	35M	Frequent epistaxis; Nasal obstruction	L	7 5	Middle and inferior; meatal antrostomy	700	127
2	16M	Nasal obstruction; Headache	R	5 5	Middle meatal antrostomy	300	95
3	40M	Frequent epistaxis	R	6 4	Middle meatal antrostomy	450	155