abnormal hypersensitivity reaction abnormal adaptive immunity abnormal cell-mediated immunity abnormal acute inflammation abnormal type IV hypersensitivity reaction Examples: granulomatous diseases: tuberculosis, sarcoidosis. contact dermatitis: elicited by poison ivy, detergents, clothing, etc. MP:0002534 MPheno.ontology anomaly in an antigen-elicited cellular immune reaction that results in tissue damage, but does not require Ab participation; the response is seen at the area of contact cell-mediated hypersensitivity contact hypersensitivity delayed type hypersensitivity