Sonographic Assessment of the Normal and Abnormal Feline Mammary Glands and Axillary and Inguinal Lymph Nodes

Table 1

Individual values, average (X), and standard deviations (SDs) related to age and mammary thickness assessed by ultrasonography in cats with normal mammary glands (G1).

Cats	Age (months)	Mammary thickness (mm)
		Thoracic mammary gland				Abdominal mammary gland
		Cranial		Caudal		Cranial		Caudal
		Right	Left	Right	Left	Right	Left	Right	Left
1	24	0.9	1.1	0.7	1.2	1.0	1.0	1.3	1.3
2	48	0.9	1.3	0.7	0.7	1.2	1.4	1.5	1.1
3	60	1.8	1.8	0.9	1.3	1.1	1.1	0.8	0.9
4	48	0.5	1.2	0.9	1.0	1.1	0.9	1.9	1.3
5	36	1.4	1.3	0.9	1.1	0.8	1.3	1.0	1.8
6	66	0.7	0.8	1.7	1.1	0.6	1.5	0.7	0.4
7	96	0.9	0.9	0.5	0.6	0.4	0.9	0.8	0.3
8	24	1.2	0.6	0.8	0.7	1.1	1.1	0.9	1.2
9	108	1.1	0.9	0.7	1.1	0.8	0.9	1.5	0.7
10	48	1.3	1.6	1.5	0.7	0.9	0.9	1.2	1.2
11	36	0.7	0.4	1.1	1.6	1.0	0.6	1.1	1.3
12	60	0.4	0.6	1.0	0.6	0.8	0.6	1.3	0.9
13	54	0.6	0.5	0.6	0.5	0.5	0.7	0.8	0.8
14	60	1.5	1.5	1.4	2.0	0.9	1.0	0.5	0.8
15	48	1.3	0.9	1.0	1.2	1.2	1.7	1.1	0.7
16	24	1.1	1.1	1.6	1.3	2.6	3.5	6.1	3.9
17	12	1.5	1.6	2.3	2.2	3.4	2.3	4.7	4.2
18	24	7.2	6.2	3.9	6.0	9.0	6.2	10.3	11.1
19	10	0.5	0.8	0.6	0.5	0.4	0.8	1.5	1.0
20	48	0.9	1.0	1.3	1.7	1.3	1.3	2.0	1.9
21	12	0.7	1.3	1.1	1.3	1.9	1.1	1.9	1.3
22	36	0.9	1.1	0.9	0.9	1.0	1.0	1.2	1.0
X	45	1.3	1.3	1.2	1.3	1.5	1.4	2.0	1.8
SD	25	1.3	11.1	0.7	1.1	1.8	1.2	2.2	2.3