How does a nurse document a large, flat bluish capillary area on a neonate's cheek?

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Port-wine stains appear as large, flat, bluish purple capillary areas. They are frequently found on the face along the distribution of the fifth cranial nerve (trigeminal). A Mongolian spot appears as an irregularly shaped, darkened, flat area over the sacrum and buttocks. A stork bite (telangiectasis) is a common vascular birthmark that appears as a small red or pink spot often seen on the back of the neck. A strawberry hemangioma appears as a slightly raised, reddened area with a sharp demarcation line that may be 2 to 3 cm in diameter.

How Does a Nurse Document a Large, Flat Bluish Capillary