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.