<prompt> Which structures are preserved in Scanlons modified radical mastectomy ?Lateral pectoral nervesLevel II nodes in the axillaPectoral fasciaNipple and the areola  <response>: Modified Radical Mastoidectomy MRM : 2 types Auchincloss MRM : Both pectoralis major and minor are preserved with removal of level I and II axillary nodes only.Pateys MRM : Pectoralis minor is removed with complete axillary clearance of nodes up to level III. - Scanlons modification of Pateys MRM : Instead of removing pectoralis minor, the muscle is just divided to that level 3 nodes can be removed. 