<prompt> The most important function of epithelioid cells in tuberculosis is:PhagocytosisSecretoryAntigenicHealing  <response>: Ans. b SecretoryRef: Immunology, 8th edition, by David Male; pg 427Epithelioid cells are transformed macrophages that have lost their phagocytic function but retained their secretory activity.Epithelioid cells contain numerous endoplasmic reticulum golgi bodies.They secrete IL10, TNF alpha, TGF beta; 