Presentation
Follow up study for abdominal lesion discovered 2 years ago.
Patient Data
Bilocular cyst measuring 10 x 9 cm arising from pancreatic body, interrupting the main pancreatic duct with distal dilatation (6 mm) and parenchymal atrophy. No enhancement noted. Foci of fat density as well as tiny calcifications are noted.
Total occlusion of the porto-spleno-mesenteric junction. Patent portal vein.
Moderate splenomegaly with multiple dilated portosystemic venous collaterals at gastric mucosa, gallbladder wall, peripancreatic, mesenteric, splenic hilum, and porta hepatis.
Case Discussion
No interval growth noted compared with the previous study 2 years ago (no available DICOM).
Parts from the wall of retroperitoneal cyst was taken by surgery and pathology revealed:
Naked eye appearance:
- speciment 1: parts from the capsule and multiple tissue fragments with rough external surface, fibrotic and grayish yellow firm in consistency. Cut section: Whitish brown
- speciment 2: bag full of sebaceous material and hair tufts
Microscopic examination:
Of sections through the cyst wall, reveals a mixed tumor tissue formed of derivatives of ectoderm, endoderm and mesoderm. Fibroconnective tissue stroma showing numerous mucous glands, squamous nests, as well as cystic spaces lined by columnar epithelium. Focal islands of mature adipose tissue as well as foci of calcifications are seen.
Diagnosis: Parts of the wall of retroperitoneal cyst consistent with mature cystic teratoma.
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