Characteristics of the study population.

<p>Characteristics of the study population.</p

Percentage of the study population fulfilling the criteria proposed to define <i>systemic mastocytosis</i> (for references, see text) when all other diagnoses that could better explain the full range and chronicity of the findings in the case have been excluded.

<p>Percentage of the study population fulfilling the criteria proposed to define <i>systemic mastocytosis</i> (for references, see text) when all other diagnoses that could better explain the full range and chronicity of the findings in the case have been excluded.</p

Sensitivities of heparin, tryptase, chromogranin A levels in blood and <i>N</i>-methylhistamine excretion into urine for indication of an increased mast cell activity.

<p>Sensitivities of heparin, tryptase, chromogranin A levels in blood and <i>N</i>-methylhistamine excretion into urine for indication of an increased mast cell activity.</p

Mast cell mediators or their metabolites in blood or urine which currently can be determined as routine laboratory parameters.

<p>Mast cell mediators or their metabolites in blood or urine which currently can be determined as routine laboratory parameters.</p