From the Department of Surgery1 and the Department of Radiology2 of the Chris Hani Bragwanath Academic Hospital – Universtity of Witwatersrand Medical School, Johannesburg, Republic of South Africa, and the Department of Surgery/Procto Surgery3 (Director: Priv.-Doz. Dr. D. Doll) of the St.-Marien-Hospital Vechta, Germany (Medical Director: Dr. O. Hagemann)
