Non-traumatic subperiosteal haematoma

Encysted haematoma formation following a latissimus dorsi flap-based breast reconstruction

“…There are case reports of encysted haematomas following spontaneous haemorrhage, blunt trauma and surgery [2][3][4][5]. Anatomical sites of these haematomas vary greatly as they have been reported in the orbit, neck, mediastinum, pericardium, pleural cavity, perinephric, para-aortic, retroperitoneum, lesser sac, pelvis and lower limbs [2][3][4][6][7][8][9][10].…”

“…Symptoms can range from subtle pain and discomfort to life threatening dyspnea, collapse, haemothorax and cardiac tamponade [6,7,9,10]. Radiologically, these lesions can be challenging to diagnose as they can mimic more sinister pathology [2,[5][6][7][8]. Management strategies described in the literature include conservative treatment, percutaneous drainage and surgical excision [2,5,6,8,9].…”

“…Radiologically, these lesions can be challenging to diagnose as they can mimic more sinister pathology [2,[5][6][7][8]. Management strategies described in the literature include conservative treatment, percutaneous drainage and surgical excision [2,5,6,8,9]. Percutaneous drainage is usually unsuccessful as they contain organized blood rather than a liquefied core [5].…”