Nontraumatic massive right-sided Bochdalek hernia in an adult

Diaphragmatic hernias in adults usually pose a diagnostic challenge; the presentations are varied and range from acute abdominal pain with features of gut obstruction, pleuritic chest pain, breathlessness, to a pregnant woman with pain abdomen. The usual cause in adults is posttraumatic. Because of varied presentations, the diagnosis is often delayed. We present a case of a young woman who presented with sudden-onset breathlessness with similar episodes in the past and no history of trauma, who proved to be having a right-sided diaphragmatic hernia. This case is reported not only because of rarity of nontraumatic right-sided Bochdalek hernias in adults, but also because of peculiar presentation and history.