A 55-years-old female patient was admitted to our clinic with a long-standing complaint of epistaxis. She had no medical history and was not taking any medications. Both her children had nosebleeds. Physical examination was remarkable for bilateral petechial areas on the tongue, around the lips, in the nail bed and telangiectasias in the malar area (Fig. 1. A). Nail bed capillaroscopy showed normal capillary microarchitecture. Giant aneurysmatic capillaries were observed without avascular areas (Fig.