Table 1.

Comparison of mast cell numbers in tumors and corresponding normal tissues.

	Mean Numbers of Mast Cells/40 × Field (± 1 standard deviation)
	Peri-tumoral tissue	Core of tumor	Normal tissue
Breast (n = 10)	4.9 ± 1.1	0.3 ± 0.3*	1.2 ± 0.9**
Head & neck (n = 10)	6.7 ± 3.6	0.5 ± 0.3*	2.8 ± 2.1**
Ovarian (n = 10)	3.0 ± 0.8	0.7 ± 0.6*	0.9 ± 0.8**
Lung (n = 10)	4.4 ± 1.9	1.0 ± 0.3*	2.5 ± 0.6 **
Non-Hodgkins (n = 5)	2.1 ± 1.0	1.8 ± 0.5 NS	1.0 ± 0.5 NS
Hodgkin's (n = 8)	4.3 ± 1.3	1.9 ± 0.8*	1.0 ± 0.5**

*p value < 0.05, comparing mean numbers of mast cells in core of tumor versus per-tumoral regions.

** p value < 0.05, comparing mean numbers of mast cells in normal tissue counterparts (n = 3) to peri-tumoral tissue.