<prompt> Which or face presentation?AnencephalyContracted pelvisPlacenta praeThyroid swelling  <response>: Fetal factors anencephaly and iniencephaly Cord around the neck Tumours of neck like congenital goitre Spasm of sternocleidomastoid muscle Dolicocephalic head refer pgno:370 Sheila textbook of obstetrics 2 nd edition 