Detection of Recurrent Cutaneous Angiosarcoma of Lower Extremity with 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography: Report of Three Cases
A 58 year old woman with history of chronic lymphedema of left leg developed a 2.5 × 3 cm reddish patch over the left leg. Biopsy revealed angiosarcoma (STS). She underwent wide local excision of the tumour followed by skin grafting. Three months after the surgery, she complained of discomfort at the surgery site along with bone pains. Magnetic resonance imaging (MRI) of the lower limbs was suggestive of post-operative changes. Restaging 18F-FDG PET-CT was done to look for distant metastasis. No distant metastasis was seen []. However, it revealed cutaneous thickening in left leg antero-laterally with increased 18F-FDG uptake (SUVmax-2.7) [-], suspicious for local recurrence. The diagnosis was confirmed with biopsy. She underwent re-operation followed by adjuvant chemotherapy and is well at 6 month follow up.