里面的23-cM,CMC1,19Mb，5q13-15是什么意思？

HBT and CM have often been considered distinct disorders, based on the clinical presentation of cutaneous lesions, but overlapping phenotypes have been described in some families.A locus for CM has recently been mapped to a 23-cM region on chromosome 5q13–q15 (CMC1). Here we report clinical and histological features of a large HBT family which showed linkage to CMC1.While this work was in progress, the locus for capillary malformation (CMC1) was assigned to a 19 Mb region on 5q13–15.The linked interval in the present family spans 7 Mb on chromosome 5q14 physical map and coincides to CMC1. Among cutaneous vascular anomalies, HBT and CM are usually classified in two distinct groups.