Telangiectasias (Table 54-8) In order to distinguish the various types of telangiectasias, it is important to examine the shape and configuration of the dilated blood vessels. Linear telangiectasias are seen on the face of patients with actinically damaged skin and acne rosacea, and they are found on the legs of patients with venous hypertension and essential telangiectasia. Patients with an unusual form of mastocytosis (telangiectasia macularis eruptiva perstans) and the carcinoid syndrome (see "Acne," above) also have linear telangiectasias. Lastly, linear telangiectasias are found in areas of cutaneous inflammation. For example, lesions of discoid lupus frequently have telangiectasias within. | Chapter 054. Skin Manifestations of Internal Disease Part 7 Telangiectasias Table 54-8 In order to distinguish the various types of telangiectasias it is important to examine the shape and configuration of the dilated blood vessels. Linear telangiectasias are seen on the face of patients with actinically damaged skin and acne rosacea and they are found on the legs of patients with venous hypertension and essential telangiectasia. Patients with an unusual form of mastocytosis telangiectasia macularis eruptiva perstans and the carcinoid syndrome see Acne above also have linear telangiectasias. Lastly linear telangiectasias are found in areas of cutaneous inflammation. For example lesions of discoid lupus frequently have telangiectasias within them. Table 54-8 Causes of Telangiectasias I. Primary cutaneous disorders A. Linear 1. Acne rosacea 2. Actinically damaged skin 3. Venous hypertension 4. Essential telangiectasia 5. Within basal cell carcinomas B. Poikiloderma 1. Ionizing radiation 2. Poikiloderma vasculare atrophicans C. Spider angioma 1. Idiopathic 2. Pregnancy II. Systemic diseases A. Linear 1. Carcinoid 2. Ataxia-telangiectasia 3. Mastocytosis B. .
