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Figure 5 | Head & Face Medicine

Figure 5

From: Clinical and morphological characteristics of head-facial haemangiomas

Figure 5

A and B. Fluorescent light microscopy of beta-adrenergic receptors contained in a transversal section of a normal (A) and an haemangioma-tous (B) artery of the face stained with fluorescent pindolole. The beta adrenergic receptors in the haemangiomatous arteries are located exclusively in the adventitia, while they lack in other layers. A = adventitia; L = lumen(magnification 800×; bar 100 μm).

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