[Differential diagnosis of benign and malignant thyroid tumors with two-dimensional and color Doppler ultrasonography].
Fifty-three cases with thyroid tumors (10 carcinomas, 16 adenomas and 27 nodular goiters) confirmed by operation and pathology were investigated by two-dimensional and color Doppler ultrasonography. The findings were as follows: malignant tumors usually had hypoechoes, indistinct and irregular margins, microcalcification, distal echo attenuation and arterial flow signals at the periphery as compared with benign tumors (P < 0.05). But differences in "halo" signs, degree of flow signals and interposed arterial vessels showed no statistical significance (P > 0.05). The clinical significance of high-velocity Doppler signals in the tumors and the pathologic basis of various sonographies of benign and malignant tumors are also discussed.
Li
J
J
PUMC Hospital, CAMS, Beijing.
Cai
S
S
Zhang
J
J
D000231:Adenocarcinoma, Papillary / Q000000981:diagnostic imaging; D000236:Adenoma / Q000000981:diagnostic imaging; D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006044:Goiter, Nodular / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color