A neurological examination detected no focal deficits. Keywords: Alopecia, complication, head-pin, metal allergy, stainless steelĪ 45-year-old woman was referred to our hospital because of incidentally found unruptured multiple aneurysms located in the anterior communicating artery (ACoA) and left A2.

A previous history of contact dermatitis to metal jewellery was later proven.Ĭonclusion:The history of metal allergy should have been carefully elicited because head fixation with head-pins is essential for neurosurgical procedures. The head-pins were made of stainless steel, containing iron, nickel, chromium, and other components. Six months later, the scalp regained hair. The pin fixation was considered to be responsible for the alopecia because the condition of the scalp lesions was even in all four parts. At her first outpatient visit 3 weeks after discharge, redness, sores, and focal hair loss were noted at all four areas where the pinning had been performed. She underwent successful surgical treatment using four head-pins of the Sugita frame. Head pin, gold-plated brass, 1-1/2 inches, 21 gauge. Head pin, electro-coated brass, black, 1-1/2 inches with 2mm ball, 21 gauge. Head pin, antique gold-plated brass, 1 inch, 21 gauge. Head pin, antique gold-plated brass, 1-1/2 inches, 21 gauge.

Head pin, antique silver-plated brass, 1-1/2 inches, 21 gauge. Head pin, antique copper-plated brass, 1 inch, 21 gauge. Head pin, gunmetal-plated brass, 1-1/2 inches, 21 gauge. Head pin, antique copper-plated brass, 1-1/2 inches, 21 gauge. Head pin, antique brass-plated steel, 1-1/4 inches, 21 gauge. Head pin, electro-coated brass, black, 1-1/2 inches, 21 gauge. Head pin, silver-plated brass, 1-1/2 inches, 21 gauge. Head pin, gold-plated brass, 1 inch, 21 gauge. Head pin, silver-plated brass, 1 inch, 21 gauge. Head pin, niobium, 1-1/2 inches, 21 gauge. Head pin, stainless steel, 1 inch, 21 gauge. Head pin, stainless steel, 1-1/2 inches, 21 gauge.

Metal head pins