Microsurgical latissimus dorsi flap in a case of breast aplasia caused by radiation therapy

The use of ionizing radiation in the breast region while a patient is at developmental age is still responsible for most monolateral hypoplasias and iatrogenic-based breast asymmetries. These alterations often involve several anatomical structures, thus causing severe hypoplasia of the breast and muscle tissues and stiffness of soft tissues, with atrophic and cicatricial skin. Reconstruction methods vary from case to case, but most of the time reconstruction with a homolateral latissimus dorsi with or without a breast implant seems most suitable. In some cases, however, this is not a viable alternative due to particular general and local conditions, making it necessary to consider other solutions. We present the case of a young prepubertal patient who came under our observation due to a radiotherapy outcome in the right breast and thoracic region; she had been previously subjected to breast reconstruction elsewhere, with the fitting of a subcutaneous prosthesis. Due to the patient's particular general and local conditions and the pathological involvement of the homolateral thoracic musculature, to improve the clinical picture, we deemed it appropriate to use the microsurgical reinnervated contralateral latissimus dorsi muscle, which so far has enabled us to obtain considerable and lasting results.