<prompt> Most common tumor in the posterior mediastinum is:NeurofibromaTeratomaLymphomaBronchogenic cyst  <response>: Most common tumors in the posterior mediastinum are Neurogenic tumors.Schwannomas neurilemmomas and neurofibromas are the most common neurogenic tumors in adults.Neurogenic tumors consist of tumors :Originating from sympathetic ganglia : ganglioma, ganglioneuroblastoma and neuroblastoma.Originating from intercostal nerves : Schwannoma neurilemoma, neurofibroma neurosarcoma.Originating from paraganglia cells - paraganglioma 