Clinical Image

Vascular Malformations Mimicking Metastases

Alberto Martinez Lorca*
Department of Nuclear Medicine, University Hospital La Paz, Spain

*Corresponding author: Alberto Martinez Lorca, Department of Nuclear Medicine, University Hospital La Paz, Madrid, Spain


Published: 09 Mar, 2017
Cite this article as: Lorca AM. Vascular Malformations Mimicking Metastases. Ann Clin Case Rep. 2017; 2: 1294.

Clinical Image

A 38-year-old woman diagnosed of liposarchoma in upper mediastinum-paraaotical with positive immunohistochemistry of DMD2 and CDK4. 18F-FDG PET-CT was underwent before treatment (Figure 1) showed high uptake in mass in relation to tumour as well as high uptake near to left femoral head suggested of metastases from a metabolical view.
She received chemotherapy (Doxirrubicin, Dacarbazine and Ifosfamide) and in an 18F-FDG PET-CT revaluation (Figure 2) showed reduction of 18F-FDG uptake in mediastinum mass in relation with metabolic partial response. However, high uptake near to left femoral head continued without significance changes. Due to this metabolic divergence response, it decided underwent hip MR and MR angiography to better characterization. It showed deep vascular malformation which represents the most common cause of paediatric and young adult’s soft-tissue masses that could mimic cancer uptake in 18F-FDG PET-CT studies. Owing to her oncological situation it was decided to follow up and finish treatment.

Figure 1

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Figure 1
18F-FDG PET-CT of upper mediastinum-paraaotical.

Figure 2

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Figure 2
Reduction of cancer after chemotherapy treatment.