Table 4.

Immunophenotype and percentage of positive cells in 26 cats with feline progressive histiocytosis.

Cat	MHC II	Iba1	CD18	c-kit	E-cadherin		Ki67
					+/–	% of positive cells	% of positive cells
1
Skin nodule	+	+	+	NT	+	5–10	21
Lymph node	+	NT	+	NT	+	<5	30
2	+	+	–	NT	+	40–70	5
3	+	+	+	NT	+	90	3
4	+	+	+	–	+	<5	7
5	+	+	+	–	+	80	4
6	+	+	+	NT	–	0	4
7	+	+	+	–	+	5–10	22
8	+	+	+	–	+	95	3
9	+	+	+	–	+	60	7
10	+	+	+	–	+	<5	16
11	+	+	+	NT	+	<5	15
12	+	+	+	–	+/–	0–10	60
13	+	+	+	–	+	75	11
14	+	+	+	–	+	90	15
15	+	+	+	–	+/–	0–5	31
16	+	+	+	–	+	90	21
17	+	+	+	–	–	0	15
18	+	+	+	–	+	<5	16
19	+	+	+	–	+	<5	16
20	+	+	+	–	+	90	11
21	+	+	+	–	+	10	54
22	+	+	+	–	+	80	9
23	+	+	+	–	+	10	5
24	+	+	+	–	+	>90	19
25	+	+	+	–	+	<5	45
26	+	+	+	–	+	25	22

NT = not tested.