Macular epiretinal membrane formation after low-dose radiation exposure in a child with papilledema from a craniopharyngioma.
OBJECTIVE
To describe a child with a craniopharyngioma and papilledema who developed a unilateral epiretinal membrane (ERM) after completing radiation therapy for his tumor.


METHODS
A clinical case is presented including fundus images of the patient's left eye and radiotherapy dosimetry curves.


RESULTS
The patient presented with unilateral formation of an ERM after resolution of papilledema from a craniopharyngioma. Dosimetry curves from radiotherapy showed low-dose exposure in the region of ERM formation in the left eye at the level of 500 cGy to 1,000 cGy.


CONCLUSIONS
The concordance of the low-dose radiation with the site of ERM formation suggests a possible contribution of radiotherapy treatment to the formation of the macular epiretinal tissue in this patient.
From the Hamilton Eye Institute, *Departments of Ophthalmology and Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, and †St. Jude Children's Research Hospital, Memphis, Tennessee.
Mary Ellen
ME
Hoehn
Thomas E
TE
Merchant
Edward
E
Chaum