Significance of Incidental Thyroid Lesions Detected on CT: Correlation Among CT, Sonography, and Pathology
Sanjay K. Shetty1,2,
Michael M. Maher1,
Peter F. Hahn1,
Elkan F. Halpern1 and
Suzanne L. Aquino1
1 Department of Radiology, Massachusetts General Hospital, FND 214, 55 Fruit
St., Boston, MA 02114.
2 Present address: Department of Radiology, Beth Israel Deaconess Medical
Center, 330 Brookline Ave., Boston, MA 02215.
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Fig. 1A —Correlation of punctate calcifications on CT with
microcalcifications on sonography. CT scans in 73-year-old woman with
heterogeneous density nodule (arrow) in left lobe of thyroid gland
and punctate microcalcifications (A, soft-tissue window setting;
B, bone window setting).
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Fig. 1B —Correlation of punctate calcifications on CT with
microcalcifications on sonography. CT scans in 73-year-old woman with
heterogeneous density nodule (arrow) in left lobe of thyroid gland
and punctate microcalcifications (A, soft-tissue window setting;
B, bone window setting).
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Fig. 1C —Correlation of punctate calcifications on CT with
microcalcifications on sonography. Corresponding sonogram shows heterogeneous
echogenicity nodule (arrows) with microcalcifications.
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Fig. 2A —Sonographic and pathologic correlation of low-density nodules
incidentally detected on CT in three patients. Contrast-enhanced axial MDCT
image shows low-density nodule (arrow in left image) in thyroid gland
of 56-year-old woman. Corresponding sonogram shows heterogeneous density
nodule (arrow in right image). Pathologic correlation revealed benign
macrofollicular adenoma.
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Fig. 2B —Sonographic and pathologic correlation of low-density nodules
incidentally detected on CT in three patients. Contrast-enhanced axial MDCT
image shows low-density nodule (arrow in left image) in thyroid gland
of 65-year-old woman. Corresponding sonogram shows hypoechoic nodule
(arrow in right image). Pathologic correlation revealed benign
colloid cyst.
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Fig. 2C —Sonographic and pathologic correlation of low-density nodules
incidentally detected on CT in three patients. Contrast-enhanced axial MDCT
image shows low-density nodule (arrow in left image) in thyroid gland
of 64-year-old man. Corresponding sonogram shows predominantly hypoechoic
nodule (arrow in right image). Pathologic correlation revealed
potentially malignant microfollicular adenoma.
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Fig. 3A —Sonographic and pathologic correlation of
heterogeneous-density nodules incidentally detected on CT in three patients.
Contrast-enhanced axial MDCT scan shows heterogeneous-density nodule
(arrow in left image) in thyroid gland of 35-year-old woman.
Corresponding sonogram shows hypoechoic nodule with microcalcifications
(arrow in right image). Pathologic correlation revealed papillary
carcinoma.
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Fig. 3B —Sonographic and pathologic correlation of
heterogeneous-density nodules incidentally detected on CT in three patients.
Contrast-enhanced axial MDCT scan shows heterogeneous-density nodule
(arrow in left image) in thyroid gland of 72-year-old man.
Corresponding sonogram (right image) shows hyperechoic nodule.
Pathologic correlation revealed benign macrofollicular adenoma.
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Fig. 3C —Sonographic and pathologic correlation of
heterogeneous-density nodules incidentally detected on CT in three patients.
Contrast-enhanced axial MDCT scan shows heterogeneous-density nodule
(arrow in left image) in thyroid gland of 54-year-old woman.
Corresponding sonogram shows heterogeneous-density nodule (arrow in right
image). Pathologic correlation revealed benign macrofollicular
adenoma.
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Copyright © 2006 by the American Roentgen Ray Society.
