Are Both Ultrasonography and Mammography Necessary for Cancer Investigation of Breast Lumps in Resource-Limited Countries?

Table 1

Classification of breast imaging (ultrasonography and mammography) and fine needle aspiration cytology (FNAC) investigations (3069 subjects, 3129 lumps).

Classifications	Interpretation	Malignant		Benign		𝑃 value
		𝑛	%	𝑛	%
Ultrasonography
bi-rads 0	Need additional imaging evaluation	0	0	4	0.3	<0.001
bi-rads 1	Negative	0	0	116	8.2
bi-rads 2	Benign	14	2.2	964	68.0
bi-rads 3	Probably benign	20	3.2	240	16.9
bi-rads 4	Suspicious for abnormality	164	25.9	86	6.1
bi-rads 5	Highly suggestive of malignancy	435	68.7	7	0.5
Mammography
bi-rads 0	Need additional imaging evaluation	0	0	2	0.2	<0.001
bi-rads 1	Negative	0	0	88	7.4
bi-rads 2	Benign	14	2.2	815	68.4
bi-rads 3	Probably benign	20	3.2	198	16.6
bi-rads 4	Suspicious for abnormality	162	25.8	81	6.8
bi-rads 5	Highly suggestive of malignancy	432	68.8	7	0.6
FNAC
class 1	Inadequate, unsatisfactory	47	9.5	86	18.4	<0.001
class 2	Benign cell present	17	3.5	356	76.1
class 3	Probably benign	76	15.5	24	5.1
class 4	Suspicious for malignancy	67	13.6	2	0.4
class 5	Malignant cell present	285	57.9	0	0