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Vascular and Lymphatic Neoplasms

»	Which is the most common benign vascular neoplasm of childhood?
»	What are the clinical subtypes of HOI?
»	Name the complications of hemangiomas.
»	What is the most common complication of hemangiomas?
»	Are there any residua of hemangiomas after regression?
»	What is Kasabach-Merritt syndrome?
»	Name the two vascular tumors most commonly associated with the Kasabach-Merritt syndrome.
»	Port wine stains and lymphangiomas are not neoplasms. What are they?
»	What is the difference between a vascular malformation and a vascular neoplasm?
»	What is Klippel-Trénaunay syndrome?
»	How does Klippel-Trénaunay-Weber syndrome differ from Klippel-Trénaunay syndrome?
»	What are blue-black hyperkeratotic vascular papules?
»	Where and in whom are cherry angiomas most commonly seen?
»	Where do you find venous lakes?
»	What is the most common presenting feature of a pyogenic granuloma?
»	Where are you likely to find a lesion of angiolymphoid hyperplasia?
»	What vascular tumor is associated with the Sucquet-Hoyer canal?
»	Matlike telangiectasias on the face, lips, tongue, ears, hands, and feet associated with internal bleeding is known as what syndrome?
»	What is the most common cause of acquired facial telangiectasia?
»	Which benign acquired vascular disease is often initially confused with Kaposi’s sarcoma?
»	What is a cystic hygroma?
»	Name the types of lymphatic malformations.
»	Can you treat deep macrocystic lymphatic malformations?

What vascular tumor is associated with the Sucquet-Hoyer canal?

The Sucquet-Hoyer canal is the arterial segment of the glomus body and may give rise to glomus tumors. A solitary glomus tumor is a painful, purple nodule measuring a few millimeters in diameter. Multiple glomus tumors are inherited in an autosomal dominant fashion, may be much larger than the solitary form, and have been confused with the blue rubber bleb nevus syndrome. The cause of multiple glomus tumors are mutations in the glomulin gene located on chromosome 1p22-p21.

Anakwenze OA, Parker WL, Schiefer TK, et al: Clinical features of multiple glomus tumors, Dermatol Surg 34:884–890, 2008.