I)r 1lemn. Tilese late (leatils usually occur between the 30th and 90th day aild n any investigators believe that immunologic rejection of the host by the grafted reticuloendotilelial cells may be the cause. It has been suggested that fetal hematopoietic donor tissue might I)e less likely to cause tiliS immunologic reaction since tolerance can he induced in fetal animals.2 Thus, reticuloendothe...

Allergic Contact Dermatitis (ACD) involves the penetration of an allergen through the skin surface where it acts as a hapten by binding to epidermal proteins and eliciting, a delayed Type IV hypersensitivity reaction 48 to 120 hours after exposure. This immunologic response involves the activation of Th1 cells with the subsequent release of cytokines resulting in the classic inflammatory reaction.

Heparin-induced thrombocytopenia/thrombosis is an immunologic reaction to unfractionated heparin characterized by thrombocytopenia, platelet activation and thrombosis. A high index of suspicion is required for timely diagnosis and treatment. Treatment is complex and outcome maybe less then satisfactory.

Granulomatous response in association with breast cancer and within the cancer draining lymph nodes is an extremely rare phenomenon. Granulomatous inflammation is an immune response commonly seen against infectious agents and certain non-neoplastic conditions. The etiopathogenesis of granulomas associated with malignancies is not clear but it may be because of an immunologic reaction to tumour ...

conclusions subcutaneous nodules in the absence of a local reaction at the site of bcg vaccination may be the sole manifestation of disseminated bcg disease. case presentation we report on an 11-months-old boy with prolonged fever and diffuse hyperpigmented subcutaneous nodules. due to lymphopenia, oral thrush and severe adverse reaction to bcg vaccination, the possibility of primary immunodefi...

Recent studies have established the immunologic significance of the mixed lymphocyte interaction ( M L I ) l t h e proliferative reaction which occurs when lymphocytes from genetically disparate donors are mixed and cultured together. Even though the act ivi ty of cells in this system is assessed in terms of proliferation rather than the elaboration of a specific immunologic product, it is appa...

Acne vulgaris is a self-limiting skin disorder seen primarily in adolescents, whose aetiology appears to be multifactorial. The four main aetiological factors are hypercornification of the pilosebaceous duct, increased sebum production, colonization with Propionibacterium acnes, and subsequently the production of inflammation. Considerable investigation has addressed the immunologic reaction to...

granulomatous response in association with breast cancer and within the cancer draining lymph nodes is an extremely rare phenomenon. granulomatous inflammation is an immune response commonly seen against infectious agents and certain non-neoplastic conditions. the etiopathogenesis of granulomas associated with malignancies is not clear but it may be because of an immunologic reaction to tumour ...