Table 3. Late complications.

Patient	Age at diagnosis, y	Diagnosis	Orbital involvement	Brain involvement	RT	Chemotherapy	Orbital complications	Intracranial complications	Wound complications
1	67	ONB	No	Yes	Yes	Yes	Ectropion Radiation Keratopathy		Nasocutaneous fistula
2	62	ONB	No	No	Yes	No	Diplopia
3	44	ONB	No	No	Yes	No	Vitreous hemorrhage
4	51	ONB	No	No	Yes	No	Epiphora Diplopia on extreme gaze	Encephalocele CSF leak Cerebritis
5	21	ONB	No	No	Yes	Yes	Retinal hemorrhage
6	42	SNUC	No	No	Yes	Yes	Radiation retinopathy		Peri-orbital cellulitis
7	56	Fibrosarcoma	No	No	Yes	No	Epiphora
8	64	SNUC	No	Yes	Yes	Yes	Radiation retinopathy
9	45	SCCa	Yes	No	Yes	Yes		Encephalocele	Nasocutaneous fistula ORN
10	75	SCCa	Yes	No	Yes	No	Epiphora
11	19	SNUC	No	Yes	Yes	Yes			Nasocutaneous fistula
12	63	ACC	No	No	Yes	No			Nasocutaneous fistula
13	77	ONB	No	Yes	Yes	No	Epiphora
14	11	ONB	No	No	Yes	No	Epiphora
15	63	ONB	No	No	Yes	No	Epiphora Diplopia	Frontal lobe radiation injury	Periorbital cellulitis Nasocutaneous fistula
16	82	BCC	No	No	Yes	Yes	Epiphora
17	21	ONB	No	Yes	No	No		Intracranial infection

Abbreviations: ACC, adenoid cystic carcinoma; ONB, olfactory neuroblastoma; ORN, osteoradionecrosis; RT, radiation therapy; SCCa, squamous cell carcinoma; SNUC, sinonasal undifferentiated carcinoma.