Mass Chest Wall (Differential Diagnosis as before)

2-week-old girl with a very large mass on the right lateral chest wall adjacent to the right mammilla. Because the prominent navel is non-irritant and because there are no inflammatory changes of the chest wall, the cause of the apparent non-inflammatory enlargement of the right breast wall must be a congenital tumor. Due to the clinical findings 'large irregular masses which are greenish shining through and are cystic on palpation', the correct diagnosis is a cystic lymphangioma of the chest wall. Possible are axillary processes which enter the thoracic cavity, or an additonal part of diffuse lymphangioma. These possibilities have to be considered in the preoperative work-up examinations and in the planning of surgery.