XXXX arising in a remnant esophagus after esophagectomy: a case report.

@entity1 @entity5 @entity2910 @entity957 @entity1721 @entity4483 @entity1822 @entity2277 @entity3
We report an extremely rare case of @entity1822 arising from a remnant esophagus. A 52-year-old Japanese @entity1 was referred to our hospital for treatment of a @entity5 arising from the remnant esophagus. Four years earlier, he underwent a subtotal esophagectomy for @entity1721 (well differentiated @entity957 , T1N0M0 Stage I) located in the lower esophagus. After preoperative studies, partial esophagectomy with laryngeal preservation and reconstruction using a free graft from the jejunum were performed. Histopathological and immunohistochemical examination revealed @entity1822 without @entity3 . Immunohistochemical examination showed that most @entity5 cells were positive for smooth muscle actin and @entity2277 , but were negative for cytokeratin and @entity4483 . The deeply biopsied specimens are helpful for preoperative histological diagnosis. Mitotic activity has been considered an important criterion of @entity5 . However, some cases with minimal mitosis in the @entity5 grow rapidly and were associated with poor prognosis. Therefore, we advocate that the clinical behavior is the only true indication of @entity5 . We also provide a review of 64 cases of @entity2910 reported in the Japanese literature with available data between 1969 and 1999, including the present case, and discuss their clinicopathological features. Asynchronous occurrence of @entity1822 and @entity957 in the esophagus is most unusual and has never been reported. @entity1 with infiltrating @entity1822 measuring more than 5 cm in diameter tend to have a poor prognosis. Chemotherapy did not exhibit any survival benefits. In the present @entity1 , no recurrence has been noted for 23 months after surgery.
