28- Dermal Tumors Flashcards
This type of vascular anomaly involute spontaneously
Infantile hemangioma
This type of vascular anomaly does not involute and are persistent
Vascular malformations
Cutaneous vascular anomaly that is characterized by an abnormal arrangement of tissues
Hamartomas
Hamartomas are usually contrasted to this condition because it is described as an increase in tissue present but in an βnormalβ arrangement
Nevus
What are the 4 types of phakomatosis pigmentovascularis?
Cesioflammea (blue nevus, nevus flammeus)
Spirolosa (nevus spilus, pale pink vascular spot
Cesiomarmorata (blue spots, cutis marmorata)
Unclassifiable
Most common type of phakomatosis pigmentovascularis
Cesioflammea
Most commonly associated condition with phakomatosis cesioflammea
Sturge-Weber syndrome
Most commonly associated condition with phakomatosis spirulosa
Multiple granular cell tumors
Hamartoma that appears as a solitary nodular lesion on acral areas with pain and hyperhidrosis
Eccrine angiomatous hamartoma
Eccrine angiomatous hamartoma has been associated with these conditions
Spindle cell hemangioma
Verrucous hemangioma
AVM
Treatment for eccrine angiomatous hamartoma
Excision because of pain
Abnormal structures that result from an aberration in embryonic development or trauma
May be due to anatomic or functional alteration
Malformations
Types of anatomic malformations
Capillary Venous Arterial Lymphatic Combined
Congenital disorder characterized by various shapes and size macules that are paler than surrounding skin
Nevus anemicus
Nevus anemicus resembles this disease but has normal amount of melanin
May occur in neck and trunk
Vitiligo
Underlying defect of nevus anemicus
Increased sensitivity of blood vessels to catecholamines
Patch of skin that is cooler than normal skin
Nevus oligemicus
Underlying defect in nevus oligemicus
Decreased blood flow due to vasoconstriction of deep blood vessels
Presence of purplish, reticulated, vascular network with segmental distribution- usually in extremities
Cutis marmorata telangiectasia congenita
Mottling is curis marmorata becomes more distinct during
Crying
Vigorous activity
Cold
Treatment for cutis marmorata
None- lesions usually improve by 2 years old
Differential in cutis marmorata where there is progressive development of large venous ectasias involving one limb
Bockenheimer syndrome
Congenital capillary malformation present in 25% of newborns
Pink red macule on posterior midline between occipital protruberance and C5
Nevus flammeus nuchae
βStork biteβ
Port wine stain
Salmon patch type of nevus flammeus is located usually in
Glabellar region
One upper eyelid
Congenital capillary malformation that usually fades in childhood
Nevus flammeus
Port wine stain
Most common site of nevus flammeus
Unilateral distribution on the face
Nevus flammeus found in this area is associated with Sturge Weber syndrome
Ophthalmic division ( V1) of CN5
Leptomeningeal angiomatosis has this characteristic feature
Calcifications in the outer cortex
βTram tracksβ that follow brain convolutions
Sturge Weber Syndrome usually results from the persistence of
primitive embryonal vascular plexus
-during the 6th fetal week around the cephalic neural tube and facial skin area
Usually regress by 9 weeks
Other syndrome associated with nevus flammeus (port wine stain) that has overgrowth of soft tissue and underlying bone in affected extremity
Klippel-Trenaunay- Parkes- Weber
Syndrome
This syndrome associated with nevus flammeus is characterized by port wine malformations
Klippel- Trenaunay
This syndrome associated with nevus flammeus is characterized by deep AVM
Parkes- Weber
Lesional skin in nevus flammeus demonstrates overgrowth of
Vascular endothelial growth factor (VEGF) VEGF receptor (VEGF-R2)
Treatment for port wine stain
Laser therapy- recurrence common
Best record of safety and efficacy in the treatment of nevus flammeus
Flashlamp pulsed dye laser
Present as rounded, bright red or deep purple spongy nodules that occur chiefly on the head and neck and may also involve mucous membranes
Generally asymptomatic
Cavernous venous malformation
Syndrome associated with venous malformation:
Dyschondroplasia with hemagiomata
Uneven bone growth, unilateral distribution
Maffucci syndrome
Syndrome associated with venous malformation:
Enchondromatosis is present without cutaneous abnormalities
Ollier disease