Unilateral hypoplasia of the breast and the pectoralis muscle with a m
issing anterior axillary fold as part of Poland's syndrome are of majo
r concern, especially for women, The latissimus dorsi is one of the mo
st suitable flaps for breast and anterior thorax reconstructions but i
t may be hypoplastic or absent. If so, a free tissue transfer of the c
ontralateral latissimus dorsi muscle is the next possible option for r
econstruction. As Poland's syndrome is additionally associated with va
scular malformations of the diseased hemithorax such as hypoplastic or
missing vessels, a preoperative angiography is mandatory for planned
microvascular tissue transfer.