Pierre Goussard1, Robert Gie1, Savvas Andronikou2, Pawel Schubert3. 1. Department of Child Health and Pediatrics, Stellenbosch University, Cape Town, South Africa. 2. Department of Radiology, University of the Witwatersrand, Johannesburg, South Africa. 3. Department of Anatomical Pathology, Stellenbosch University, Cape Town, South Africa.