Abstract
We present the clinical case of a 20-year-old male patient who presented recurrent pneumothorax on 5 occasions; in addition, he revealed a history of skeletal malformations in the hands and joint hypermobility. A genetic panel for connective tissue disorders was performed, in which a heterozygous variant in the gene was detected ABL1: (NM_007313.2): c.199T>C (p.Trp67Arg), which was classified as probably pathogenic, which is why the diagnosis of Heart Defects and Skeletal Malformations Syndrome was confirmed (CHDSKM).