Excision of Masson’s Haemangioma Following Suspected Liposarcoma on Imaging

Abstract

Lipomas are commonly seen in general practice. Lipomas of large size should be investigated for the possibility of a soft tissue sarcoma. Intravascular papillary endothelial hyperplasia (Masson’s haemangioma) is a benign non-neoplastic vascular lesion that can mimic soft tissue sarcomas and can lead to an incorrect diagnosis. We report a case of a 60-year-old male artist who had an 8×8 cm swelling of his left mid-scapular region, without history of injury or trauma. Ultrasound and Magnetic Resonance Imaging (MRI) were suggestive of a lipoma or a liposarcoma. Tissue biopsy revealed fibrous tissue with a dense capillary network suspicious of a vasoformative lesion. The patient was discussed in the sarcoma multidisciplinary team and a surgical excision was decided. At the time of wide local excision, a haematoma and thrombosed veins were seen. Histology revealed a Masson’s haemangioma.

Keywords

• lipoma
• magnetic
• resonance
• scapula