A 25-month-old girl ingested a button battery, discovered one week later upon haemorrhagic shock. Post-intubation chest X-ray revealed a button battery at the oesophageal upper third. CT scan unveiled an aberrant right subclavian retro-oesophageal artery (arteria lusoria), and angiography showed contrast extravasation. The right subclavian artery was successfully stented using three pre-mounted covered stents (BeGraft 5*28, 5*22, and 6*22 mm, Bentley InnoMed, Germany) (Figure 1 a). The button battery was extracted endoscopically, and a pleuro-oesophageal fistula was drained and washed surgically. Three months later, haematemesis and shock reoccurred due to vascular and stent wall destruction in the setting of fungal mediastinitis. Two 6*58 and 6*15 mm BeGraft covered stents were deployed (Figure 1b) by axillary and femoral arteries complex approach, complicated with left lower limb ischaemia treated by surgical revascularisation and aponeurotomy. After three days, the oesophagus was surgically excluded. Three months later, bleeding reoccurred from the gastrostomy feeding tube. The right subclavian artery was completely occluded with 16 coils (AZUR, Terumo, New Jersey) to stop the bleeding for a few days (Figure 1c). After 10 days, the material was extracted and the aorta required repair with bovine pericardium (Figure 1d). At a six-month follow-up, the child was doing well at home with motor rehabilitation.

Figure 1. Anteroposterior projection right after the first stenting of the aberrant right subclavian artery showing the 20-mm button battery still inside the oesophagus (a), 20°-right-anterior-oblique digital subtraction angiography revealing extensive contrast medium extravasation into the oesophagus where air bubbles can be seen (b), anteroposterior projection after multiple coil embolisation of the right subclavian artery without residual fistula (c ), and surgical view by clamshell thoracotomy depicting the extraction of the stented necrosed right subclavian artery ( d).

An aberrant right subclavian artery in the vicinity of the oesophagus may make foreign body obstruction more likely, and in the setting of button battery, ingestion could prove to be fatal. The aorta can be involved and successfully treated percutaneously before surgery. ^{Reference Alreheili, Almutairi, Alsaadi, Ahmed, Alhejili and AlKhatrawi1} Subclavian repeated rescue endovascular treatment can also be effective.