Skip to main content
. 2012 Jan;33(1):124–127. doi: 10.3174/ajnr.A2732

Table 2:

US features of collapsing benign cystic nodules and papillary thyroid microcarcinomasa

Characteristic CBCN (n = 13) PTMC (n = 26) P Value
Internal content
    Solid 13 (100) 26 (100)
Shape .016
    Ovoid-to-round 13 (100) 16 (62)
    Taller-than-wide 10 (39)
Margin <.000
    Spiculated 2 (15) 20 (76)
    Ill-defined 11 (85) 6 (23)
Echogenicity .290
    Marked hypoechogenicity 6 (46) 7 (26.9)
    Hypoechogenicity 7 (54) 19 (73)
Microcalcification 6 (46) 15 (58) .734
Macrocalcification 0 (0) 23 (89) .538
Inner isoechoic rim 11 (85) 5 (19) <.000
Low-echoic halo 10 (77) 3 (1) <.000
a

Data are numbers of nodules, with percentages in parentheses.