MRI of malignant peripheral nerve sheath tumour in pericardial cavity

Description 

Malignant peripheral nerve sheath tumour (MPNST) is a rare phenotype of soft tissue sarcoma which accounts for ~2% of all sarcomas.1 It is said to be highly possible to cause recurrence and metastasis, therefore early diagnosis is important.

This report shows an MRI of MPNST in a pericardial cavity which has not been reported yet. The patient was a 30-year-old woman with a history of ulcerative colitis. She visited our hospital because of chest discomfort during inspiration and running a fever of 38°C. Transthoracic echocardiography demonstrated a mass beside the left atrium in the pericardial cavity with a lot of pericardial effusion. Since further information was needed to identify the true character of the mass immediately, we next performed a contrast-enhanced CT. It showed heterogeneously enhanced image of the mass in the pericardial cavity; however, we could not define whether the mass was a tumour or...

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