“…Although Edston and Van Hage-Hamsten [2] found elevated heart blood tryptase levels in cases such as traumatic deaths, deaths after heroin-injection and unexplained deaths, in the present case the elevated tryptase level seems to be part of an anaphylactic reaction. The high number of mast cells in the pulmonary and cardiac tissue has also been described before in deaths due to anaphylaxis [5,13] just as the fact that the CD117 stain, which visualizes the mast cell membrane, showed more mast cells than the Giemsa stain, which visualizes the granules contained in the mast cells. This suggests degranulation of the mast cells and can be regarded as further evidence of an anaphylactic reaction.…”