Table 3.

Mast-cell-mediated symptoms and signs

Symptoms and signs	Total (n=66) n (%)	MPCM (n=44) n (%)	DCM (n=2) n (%)	MOS (n=19) n (%)	SM (n=1) n (%)
Itching	49 (74.2)	32 (48.4)	2 (100)	14 (73.6)	1 (100)
Recurrent abdominal pain	6 (9.1)	5 (11.3)	0	1 (5.2)	0
Diarrhea	2 (3.0)	1 (2.2)	0	1 (5.2)	0
Headache, dizziness	1 (1.5)	0	0	0	1 (100)
Dyspnea	3 (4.5)	3 (6.8)	0	0	0
Cough, recurrent sinopulmonary infections	1 (1.5)	1 (2.2)	0	0	0
Angioedema	1 (1.5)	0	0	0	1 (100)
Blistering of skin	29 (43.9)	14 (31.8)	2 (100)	12 (63.1)	1 (100)
Darier sign	47 (71.2)	28 (63.6)	2 (100)	16 (84.2)	1 (100)

*Systemic symptoms were reported in 12 patients of whom two had more than one systemic symptom.