A CASE REPORT OF SO-CALLED CARCINO-SARCOMA OF THE ESOPHAGUS COEXISHED WITH EARLY GASTRCIC CARCINOMA, TYPE IIA

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Among malignant neoplasmas of the esophagus, so-called carcinosarcoma is very rare and known to present interesting histological features. But it is yet controversial weather sarcomatous component of this tumor is in epithelial or non-epithelial origin. A 67-eayr-old male was admitted to Hamamatsu Medical Center with a chief complaint of poststernal discomfort for six months duration. Upper G. I. series, esophagogastric endoscopy, esophago-gastric biopsy and esophageal cytology with balloon method showed squamous cell carcinoma which was a small polypoid lesion surrounded by elevated mucosa and sarcomatous-like tumor which was a large, constrcited mass in the mid-lower esophagus and early gastric carcinoma, type ha on the posterior wall of the midbody. Resected specimens showed a small polypoid lesion surrounded by elevated mucosa with shallow ulcerations and a large ovoid mass, 8.5 × 5.0 × 4.0cm in diameter with a narrow stalk in the esophagus and a flat, protruding lesion in the stomach. Histopathological findings showed so-called carcinosarcoma which was squamous cell carcinoma (a small polypoid lesion and elevated mucosa) associated with transitional change to sarcomatous pattern (a large ovoid mass) in the esophagus and early gastric carcinoma, type ha which was well-differenciated adenocarcinoma (m). The literatures of so-called carcinosarcoma were reviewed.
社団法人日本消化器内視鏡学会の論文