Table 1.

Clinicopathological and demographic characteristics of CA ex-PAs

No.	Age (y)/Sex	Location	Size (cm)	Subtype	Mitoses/10 HPFs	Necrosis	Nuclear pleomorphism	INV	PA%
1	47/F	Parotid	1.3	MECA	2	No	No	WI	15
2	41/M	Parotid	9.5	MECA	1	Yes	No	WI	<5
3	67/F	Parotid	1.1	MECA	12	No	Yes	WI	10
4	77/M	BOT	2.1	MECA	22	Yes	No	WI	15
5	67/F	Parotid	6	MECA	5	Yes	Yes	WI	<5
6r	63/F	Parotid	NA	MECA	NA	NA	NA	NA	NA a
7	64/M	Parotid	3	MECA	2	Yes	Yes	WI	NA a
8	F	Parotid	NA	MECA	6	Yes	No	WI	20
9	76/M	Parotid	3.5	MECA	7	Yes	Yes	WI	30
10	NA	NA	NA	MECA	NA	NA	NA	NA	NA a
11	67/F	Parotid	4.2	SDC	16	Yes	Yes	WI	25
12	63/M	Parotid	1.4	SDC	8	Yes	Yes	WI	10 b
13	75/M	Parotid	2	SDC	8	Yes	No	WI	60
14	67/F	Parotid	4.4	SDC	3	Yes	Yes	WI	10
15	70/M	Parotid	1.2	SDC	6	Yes	No	WI	15
16	51/M	Parotid	3.4	SDC	20	Yes	Yes	WI	30
17	87/F	Parotid	2.4	SDC	9	Yes	Yes	WI	5 b
18	43/M	Parotid	1.5	SDC	4	Yes	Yes	WI	30
19	68/F	Parotid	2	SDC	3	Yes	Yes	WI	70
20	98/M	Parotid	2.7	SDC	10	Yes	Yes	WI	5 b
21	74/F	Lacrimal gland	4.2	CA-SG	16	Yes	Yes	WI	25
22	35/M	Parotid	5.8	MECA and ACA NOS	6	Yes	Yes	NI	40

Abbreviations: INV, invasion; BOT, base of tongue; NA, not available; PA, pleomorphic adenoma; MECA, myoepithelial carcinoma; SDC, salivary duct carcinoma; F, female; M, male; WI, widely invasive; BOT, base of tongue; NA: not applicable; CA-SG, carcinoma with squamoglandular features; ACA NOS, adenocarcinoma not otherwise specified; WI, widely invasive; NI, noninvasive.

^aThe prior PA at the same site was not available for review.

^bHyalinized nodule.