TABLE 2.

Cytologic Characteristics of NAF and Ductoscopic Specimens Based on Pathologic Diagnosis^*

Pathology	N	NAF/Ductoscopic Cytology (%)
		Inadequate Epith cells	Normal/DH	Atypia	Suspicious for Cancer	Malignant
Normal	9
NAF		4(44)	5(56)	0	0	0
Ductoscopy		4(44)	2(22)	3(34)	0	0
Hyperplasia	22
NAF		16(73)	3(13.5)	3(13.5)	0	0
Ductoscopy		8(36)	8(36)	5(23)	1(5)	0
Papilloma	14
NAF		4(29)	7(50)	3(21)	0	0
Ductoscopy		5(36)	5(36)	1(7)	2(14)	1(7)
Papilloma with atypia	4
NAF		2(50)	1(25)	0	1(25)	0
Ductoscopy		0	0	2(50)	2(50)	0
Atypical hyperplasia	1
NAF		0	1(100)	0	0	0
Ductoscopy		1(100)	0	0	0	0
Lobular carcinoma in situ	2
NAF		1(50)	1(50)	0	0	0
Ductoscopy		1(50)	1(50)	0	0	0
Ductal carcinoma in situ	12
NAF		3(25)	7(58)	1(13.5)	1(13.5)	0
Ductoscopy		2(17)	7(58)	2(17)	0	1(8)
Invasive breast cancer	20
NAF		8(40)	8(40)	2(10)	2(10)	0
Ductoscopy		7(35)	8(40)	2(10)	0	3(15)
TOTAL
NAF	84	38(45.2)	33(39.2)	9(10.7)	4(4.7)	0
Ductoscopy	84	28(33.3)	31(36.9)	15(17.8)	5(5.9)	5(5.9)

^*NAF: nipple aspirate fluid; DH: ductal hyperplasia; epith: epithelial.