Post-GDC-coiling alopecia = Post-GDC-coiling alopecia

다국어 초록 (Multilingual Abstract)

Postoperative alopecia is an uncommon complication of long anesthetic surgical procedures, typically affecting the occiput and resulting from pressure-induced tissue hypoxia. Guglielmi detachable coil (GDC) coiling is a procedure guided by fluoroscopy that fills an intracranial aneurysm. There were two cases of rectangular postoperative alopecia on the occipital area after GDC coiling, considered probably mainly radiation-induced. A 55-year-old male and a 49-year-old male patient visited our clinic for alopecic patches on occipital area which occurred 2 weeks after GDC coiling for cerebral aneurysms. The alopecic patches were evenly distributed reduction in hair density, not total loss of hair, and rectangular, sharply outlined from uninvolved area. The openings of hair follicles were remained, to be non-scarring alopecia. The patients were reassured that hair loss is temporary and topical minoxidil were prescribed. After about 5 months, the alopecic patches were fully restored in both patients. Both patients received GDC coiling under fluoroscopy which can cause significant amount of radiation exposure to penetrating skin and hair, resulting in temporary or permanent alopecia. The duration of operation of both patients were 3 hours, not long enough to cause pressure alopecia. In this point of view, these evenly distributed, circumscribed, rectangular and telogen-spared alopecic patches can be suggested radiation-induced.