In medicine,<unk>  is a finding felt in rectal examination that indicates that a tumor has metastasized to the pouch of Douglas. It is usually a site of metastasis of cancers of the lung, pancreas, and stomach.<unk>  or peritoneal cul-de-sac, is a<unk>  palpable on rectal or vaginal examination. It is due to metastatic tumor cells gravitating from an abdominal cancer and growing in the rectovesical or rectouterine pouch. Synonym(s): rectal<unk>
Blumer's shelf
Floor plate
Bridge 
Port 
Cementicle
Cradle cap
Dreamlab
Beevor's axiom