PMC8110415_01
(a) Axial post contrast MRI demonstrates a 3.3 cm pancreatic body/tail cystic lesion without enhancing nodules. (b) MRCP demonstrates a pancreatic body cystic lesion with no discrete connection with the pancreatic duct and a normal pancreatic duct diameter.
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Magnetic resonance imaging/Magnetic resonance cholangiopancreatography (MRCP) demonstrated a 2.8 x 3.2 x 3.3 cystic pancreatic body lesion consistent with IPMN without main pancreatic duct dilation or enhancing nodules (Figure 1).
Areas of the cyst are lined by endometrial epithelium and stroma (a), while other areas are denuded but have hemosiderin-laden macrophages underlying the cyst cavity (b). The low power image (c) shows the cyst compressing the surrounding pancreatic parenchyma.
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Instead, there were areas of endometrial stroma and an overabundance of hemosiderin-laden macrophages along with glandular epithelium overall consistent with endometriosis (Figure 2).