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The Korean Journal of Pathology 1998;32(11): 1025-1027.
A Pancreatic Cyst of the Anterior Mediastinum.
Kye Weon Kwon, Kyung Young Jung, Woo Ick Yang
1Department of Pathology, Pochun CHA University Medical College, Seongnam, Korea.
2Department of Thoracic and Cardiovascular Surgery, Yonsei University College of Medicine, Korea.
3Department of Pathology, Yonsei University College of Medicine, Korea.
ABSTRACT
Although heterotopia of pancreatic tissue is a developmental anomaly found in approximately 2% of all autopsies, pancreatic tissue within the thorax and mediastinum is uncommon. In most of these instances, the pancreatic tissue is a component of gastroenteric duplication cysts, intralobar pulmonary sequestrations or teratomas. We describe an anterior mediastinal cyst consisting entirely of pancreatic tissue. A previously healthy 27-year-old woman was admitted due to chest pain during deep inspiration. The computed tomographic scan of the thorax showed a large cyst occupying the right anterior mediastinum. The excised multilocular cystic lesion measured 12 cm in maximum diameter and contained a brown, turbid fluid. The wall was fibrotic and showed a haphazard mixture of ducts and exocrine acini without islets. The histogenesis of this lesion is unclear.
Key Words: Ectopic pancreas; Mediastinum; Pancreatic cyst