The Yarmouk Palestinian Camp in Damascus (Ar: مخيم اليرموك ) is more a full city district than a camp, a permanent home for many displaced Palestinian families and other Syrian citizens with hospitals, schools, and more. In 2004 it had a population of 137,248.  A January, 2014 article in al-Arabiya specifies that by 2011 the district "housed nearly 250,000 Palestinians that included 150,000 officially registered refugees," a number reduce by the war and devastation there to roughly 18,000 people, mainly those with no means to flee. 
As the Wikipedia article summarizes:
- During the Syrian civil war, Yarmouk camp became the scene of intense fighting between the rebel Free Syrian Army and its Palestinian ally Liwa al-Asifa on one hand and the Popular Front for the Liberation of Palestine – General Command (PFLP-GC) supported by Syrian Army government forces on the other. 
It's this period, especially mid-2013 and forward, that will be explored here. Special emphasis will be placed on the recently realized crisis of starvation and other privation killing those left inside Yarmouk - see talk page section.
- Yarmouk CampWikipedia, last modified on 15 December 2013 at 10:52.
- Starving refugees: how we disowned Palestinians in Syria By Ramzy Baroud, Al-Arabiya, January 12, 2014