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CT evaluation of anaplastic thyroid carcinoma
S Takashima1, S Morimoto, J Ikezoe
1Department of Radiology, Osaka University Medical School, Japan.
AJR. American Journal of Roentgenology
|May 1, 1990
Summary
Computed tomography (CT) accurately detects anaplastic thyroid carcinoma invasion and aids surgical planning. This imaging technique improves diagnostic accuracy and identifies optimal biopsy sites for this aggressive thyroid cancer.
Area of Science:
- Radiology
- Oncology
- Pathology
Background:
- Anaplastic thyroid carcinoma is an aggressive malignancy with poor prognosis.
- Accurate staging and assessment of local invasion are critical for treatment planning.
Purpose of the Study:
- To evaluate the diagnostic accuracy of computed tomography (CT) in patients with anaplastic thyroid carcinoma.
- To compare CT findings with pathologic results and palpation.
- To assess the utility of CT in surgical planning.
Main Methods:
- Retrospective comparison of CT findings with pathologic findings and palpation in 19 patients.
- Detailed analysis of CT characteristics, including mass attenuation, calcification, necrosis, and adjacent structure invasion.
Main Results:
- CT identified large, low-attenuation masses with calcification (58%) and necrosis (74%).
- CT accurately depicted invasion of the carotid artery, internal jugular vein, larynx, trachea, esophagus, mediastinum, and lymph nodes.
- CT outperformed palpation in detecting primary tumors and metastatic nodes, and altered surgical plans in 8 patients.
Conclusions:
- CT enhances diagnostic accuracy for anaplastic thyroid carcinoma by suggesting diagnoses and guiding biopsies.
- CT is essential for surgical planning, particularly in cases with intrathoracic extension or invasion of adjacent structures.