Erratum to “Abdominal Wall Abscess due to Acute Perforated Sigmoid Diverticulitis: A Case Report with MDCT and US Findings” - Vasileios Rafailidis; Anna Gavriilidou; Christos Liouliakis; Asimina Tsimitri; Sofia Paschaloudi; Vasiliki Karadimou (Case Reports in Radiology)