Bursa of FabriciusBursa, SynovialYolk SacBursitisEndolymphatic SacChickensAir SacsInfectious bursal disease virusBirnaviridae InfectionsAnal SacsPoultry DiseasesGestational SacChick EmbryoShoulder Impingement SyndromeRotator CuffTrichostrongyloideaCloacaAvian LeukosisAchilles TendonReoviridae InfectionsCalcaneusShoulder JointThymus GlandAcromionMarek DiseaseSynovial CystTurkeyB-LymphocytesAdnexa UteriGene Rearrangement, B-Lymphocyte, Light Chain