text: A<unk>  is a medical condition whereby the septum, the cartilaginous membrane dividing the nostrils, develops a hole or fissure.
option_0: Perforated septum
option_1: Deviated septum
option_2: Congenital absence of the pericardium
option_3: Pericardial cyst
option_4: Endocardial cushion defect
option_5: Atrioventricular canal defect
option_6: Annuloaortic ectasia
option_7: Ductus arteriosus aneurysm