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. 2020 Oct-Dec;35(4):364-366.
doi: 10.4103/ijnm.IJNM_123_20. Epub 2020 Oct 21.

Metastatic Thymic Carcinoma on Restaging 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography

Alex Cheen Hoe Khoo  1 , Soo Fan Ang  2
Affiliations

Metastatic Thymic Carcinoma on Restaging 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography

Alex Cheen Hoe Khoo et al. Indian J Nucl Med. 2020 Oct-Dec.

Abstract

Thymic carcinoma is a rare thymic epithelial cancer which is not only locally invasive but also highly aggressive disease. The prognosis for this cancer is poor and the surgery remains the mainstay of treatment. Thymic carcinomas have been shown to metastasize to the lymph nodes, lung, and liver. A 63-year old male who was successfully treated for thymic cancer in 2015, presented with metastatic disease recurrence to the spinal cord. We share interesting images of the spinal cord lesions as well as pituitary metastases that were incidentally detected on restaging 18F-fluorodeoxyglucose positron emission tomography-computed tomography.

Keywords: 18F-fluorodeoxyglucose positron emission tomography-computed tomography; magnetic resonance imaging; metastases; pituitary; spinal cord; thymic carcinoma.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
(a and b) The axial fused positron emission tomography-computed tomography images of incidental findings of 18F-fluorodeoxyglucose avid lesions at the pituitary fossa and the left lateral aspect of the pons respectively whereas (c and d) the multiple foci of 18F-fluorodeoxyglucose avid lesions in the spinal cord at the cervical and lumbar regions (white arrows)
Figure 2
Figure 2
(a and b) Axial T2-weighted fluid-attenuated inversion recovery sequence images of the pituitary tumor and extradural lesion at the left prepontine cistern. (c and d) The T2-weighted fast-relaxation fast-spin echo sequence sagittal images of the extradural and intradural extramedullary drop metastases respectively
See this image and copyright information in PMC

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