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Macrocephaly-Cutis marmorata telangiectatica congenita without cutis marmorata?
P Franceschini1, D Licata, G Di Cara
1Dipartimento di Scienze Pediatriche e dell'Adolescenza, Università di Torino, Turin, Italy.
American Journal of Medical Genetics
|March 10, 2000
Summary
This study details two cases of macrocephaly-cutis marmorata telangiectatica congenita (M-CMTC), highlighting key diagnostic features and cerebral alterations. Findings suggest a need for revised diagnostic criteria for this rare genetic disorder.
Area of Science:
- Genetics
- Pediatrics
- Dermatology
Background:
- Macrocephaly-cutis marmorata telangiectatica congenita (M-CMTC) is a rare genetic disorder.
- Diagnosis often relies on a constellation of clinical features.
Observation:
- Two patients presented with macrocephaly, high forehead, overgrowth, capillary hemangiomata, and redundant skin.
- Patient 1 exhibited cutis marmorata and joint laxity.
- Patient 2 displayed polydactyly, syndactyly, and specific cerebral alterations.
Findings:
- Both patients showed significant cerebral alterations on MRI, including cortical dysplasia and myelinization defects.
- Cerebral findings in the second patient included intertonsillar widening and porencephalic areas.
- Review of existing cases supports proposing new diagnostic criteria for M-CMTC.
Implications:
- This case series expands the understanding of M-CMTC clinical variability.
- The proposed diagnostic criteria aim to improve early identification and management of M-CMTC.
- Further research is warranted to elucidate the genetic underpinnings and long-term outcomes of M-CMTC.