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Figure 1 | Journal of Medical Case Reports

Figure 1

From: Posterior mediastinal ganglioneuroma with peripheral replacement by white and brown adipocytes resulting in diagnostic fallacy from a false-positive 18F-2-fluoro-2-deoxyglucose-positron emission tomography finding: a case report

Figure 1

Radiographic images of the tumor. (A-C) Computed tomography images. A well-demarcated mass located in the left posterior mediastinum can be seen. The central portion of the tumor shows soft tissue density (27 Hounsfield unit, HU) on precontrasted computed tomography images (A). The late-phase contrast-enhanced computed tomography images (B, C) demonstrate slight or mild heterogeneous enhancement (35 HU). (D-F) Frontal parallel plane of magnetic resonance images. The tumor shows intermediate to high signal intensity on T2-weighted image (D), low signal intensity on T1-weighted image (E), and slight or mild heterogeneous enhancement on contrast-enhanced fat-suppressed T1-weighted image (F). The tumor appears to be in close contact with several intervertebral foramina. (G) 18F-2-fluoro-2-deoxyglucose-positron emission tomography/computed tomography scan at almost the same level as A and B. (H) Computed tomography-guided needle biopsy. The biopsy needle is inserted in the central portion of this mass. The orange arrows seen in A, B, C, E, and F indicate intratumoral fat tissue. The white bars seen in A to G represent 5cm.

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Journal of Medical Case Reports

ISSN: 1752-1947