3-Methods:
Computed tomography (CT) scan of the abdomen revealing edematous
pancreatitis of the tail of the pancreas, corroborating a diagnosis of
mild acute pancreatitis. Magnetic resonance imaging (MRI) showed a well
circumscribed mass measuring 14 mm present at the junction of the body
and tail (Figure 1). It is of high signal intensity on T2 low T1 with
minimal internal septal enhancement. It is communicating with the
pancreatic duct which distally in the tail is at the upper limits of
normal measuring 3 mm.
Endoscopic ultrasound (EUS) showed a 13 mm cystic lesion obstructing the
Wirsung duct (figure 2). FNA and core biopsy were positive for a small
blue cell tumour and positive for CD99. These findings were consistent
with extension of Ewing sarcoma (figure 3).