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. Author manuscript; available in PMC: 2008 Jun 3.
Published in final edited form as: AJR Am J Roentgenol. 2002 Nov;179(5):1330–1332. doi: 10.2214/ajr.179.5.1791330

Fig. 1.

Fig. 1

62 year-old woman with pararectal chordoma.

A, Contrast-enhanced CT scan obtained before treatment shows nonenhancing pararectal chordoma (thick straight arrow) measuring 4.8 × 4.6 cm, rectum (thin straight arrow), and urinary bladder (curved arrow).

B, Contrast-enhanced CT scan obtained immediately after ablation shows nonenhancing thermal lesion (arrow) has replaced entire tumor. Contrast material is visible in base of bladder (arrowhead). Thermal lesion measured 29 H after uptake of contrast material, compared with 28 H before.

C, Contrast-enhanced CT scan obtained 6 months after ablation shows reduction in tumor size to 3.0 × 3.3 cm (large arrow), with no definite pathologic enhancement to suggest local recurrence. Note linear tissue (small arrow) in fat posterior relative to lesion, likely representing burned fat and scar tissue. The treated mass after contrast enhancement measured 44 H (before contrast administration [not shown], 45 H).