Presents as firm, skin-colored or pink papules, classically on the central face in patients with tuberous sclerosis.
A benign vascular tumor of infancy that has a characteristic rapid growth phase followed by slow involution, unlike a persistent malformation.
Presents as a blanching macule or telangiectasias at birth, which then rapidly proliferates into a bright red tumor, a growth cycle not seen in malformations.
A rare, deep, firm tumor of infancy that is histologically distinct and lacks the color and compressibility of many vascular lesions.
A locally aggressive vascular tumor, often associated with Kasabach-Merritt phenomenon (profound thrombocytopenia), a systemic complication not seen with most malformations.
A congenital, slate-gray or blue patch of dermal melanocytosis, typically on the sacrum, which is a pigmentary issue, not a vascular one.
A rare disorder with widespread vascular and lymphatic malformations, often involving internal organs as well as the skin.
A blue-gray hyperpigmentation of the periorbital region (dermal melanocytosis) following the distribution of the trigeminal nerve, a pigmentary condition.
A form of cutaneous mastocytosis presenting as multiple, reddish-brown macules that urticate when stroked (Darier's sign).
