Occlusive vascular Ehlers–Danlos syndrome accompanying a congenital cystic adenomatoid malformation of the lung: report of a case

An 8-year-old male presented with a cystic lung lesion in the left lower lobe, which was initially detected during surgery for a spontaneous rupture of the sigmoid colon at the age of 6 years. Tissue fragility and a tendency to bleed easily were noted during the surgery, which strongly suggested vascular Ehlers–Danlos syndrome. Although there was no abnormality in the hemostasis screening test, or any suspicious hereditary problem in his pedigree, genetic gene testing for vascular Ehlers–Danlos syndrome was recommended, and showed a de novo mutation in the COL3A1 gene. This report presents the case of patient with occlusive vascular Ehlers–Danlos syndrome accompanying a congenital cystic adenomatoid malformation of lung, in addition to a duplicated infrarenal vena cava.