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Introduction
Demographics
Causes
Clinical features
Diagnosis
Management
Outcome
Cutis marmorata telangiectatica congenita is an uncommon congenital capillary vascular malformation. It should not be confused with cutis marmorata, a normal physiologic skin mottling in cool environments.
Cutis marmorata telangiectatica congenita is rare. It is usually sporadic, and family members are unaffected. However, several members of a family may occasionally have CMTC.
The cause of cutis marmorata telangiectatica congenita is unknown but is likely to be a genetic mutation. A possible variation in the ARL6IP6 gene has been suggested.
The child may have other congenital naevi, such as a café-au-lait macule, mongolion spot (dermal melanocytosis), naevus flammeus, type 5 phakomatosis pigmentovascularis or other vascular birthmarks.
Cutis marmorata telangiectatica congenita is present at birth. It is characterised by fixed patches of mottled skin with a net-like or reticulate blue to pale purple patches (livedo reticularis). Unlike physiological cutis marmorata, the marks do not fade with warming.
CMTC may appear indented due to dermal atrophy (loss of dermis). Atrophy of the epidermis and rarely ulceration may also occur. It is most commonly associated with ipsilateral limb hypotrophy (smaller, shorter limb).
Shortly after birth, the red or pink patches of skin may also be confused with a port wine stain or early infantile haemangioma.
Two congenital abnormalities are associated with cutis marmorata telangiectatica congenita: Adams–Oliver syndrome and phakomatosis pigmentovascularis.
The main features of Adams–Oliver syndrome are:
The main features of phakomatosis pigmentovascularis are:
Macrocephaly–CMTC has been renamed macrocephaly–capillary malformation (MCM) since skin lesions in MCM represent reticulated port wine stains rather than cutis marmorata.
Persistent cutis marmorata maybe be seen in patients with Down syndrome, trisomy 18 and Cornelia de Lange syndrome.
Extra-cutaneous findings of cutis marmorata telangiectatica congenita include:
Diagnosis of cutis marmorata telangiectatica congenita is usually based on the identification of the specific skin appearances by an experienced dermatologist or paediatrician.
There is no specific treatment for the skin lesions of cutis marmorata telangiectatica congenita.
Affected children with limb length discrepancies should be monitored with standing leg-length radiographs at the age of 10 (girls) or 12 (boys), or if the limb length discrepancy is greater or equal to 2 cm. Orthopaedic referral is advised for limb length discrepancies over 2 cm for epiphysiodesis (fusion of bone growth plate) and surgical consideration.
Cutis marmorata telangiectatica congenita slowly fades over the first years of life.
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