Table 5.

Tumor Type by Generation

Group	p53172H	MMTV	Number mice	Number tumors*	Type A†	Type B†	Type C†	Type Y†	Others†	Adeno- squamous	Molluscoid	Carcino- sarcoma
F1	−	−	12	2	0	1 (50)	0	0	1 (50)	0	0	0
F1.V	−	+	17	23*	8 (35)	14 (61)	0	0	0	0	1	0
F1.V.TG	+	+	8	8	1 (13)	6 (75)	1 (13)	0	0	0	0	0
N2.V	−	+	15	16	7 (44)	7 (44)	1 (6)	1 (6)	0	0	0	0
N2.V.TG	+	+	22	24*	8 (33)	15 (63)	0	0	1 (4)	0	0	0
N4/5	−	−	8	6	1 (17)	4 (75)	0	1 (17)	0	0	0	0
N4/5.V	−	+	14	9	2 (22)	1 (11)	2 (22)	1 (11)	0	1 (11)	1 (11)	1 (11)
N4/5.TG	+	−	5	1	0	0	0	0	0	0	1 (100)	0
N4/5.V.TG	+	+	10	8	1 (13)	2 (25)	0	0	1 (12)	1 (13)	1 (13)	2 (25)
Sum				97	28 (29)	50 (52)	4 (4)	3 (3)	3 (3)	2 (2)	4 (4)	3 (3)

*Represents more than the total number of mice, since some mice had more than one tumor. Percentages are given in parentheses.

^†Tumor types: A, acinar; B, solid or papillary; C, cystic; Y, tubular; “others” includes one type L, secretory lace-like; one type P, plaque-like; and one pale cell carcinoma according to (Sass and Dunn 14 ) and (Dunn 30 ).