逆流性食道炎に併存した食道表在癌の1例

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  • A CASE OF ESOPHAGEAL SQUAMOUS CELL CARCINOMA ASSOCIATED WITH REFLUX ESOPHAGITIS

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We reported a case of superficial esophageal squamous cell carcinoma associated with reflux esophagitis in a 67-year-old man. He had been surgically treated for an oropharyngeal cancer by an otorhinopharyngolarynglologist in our hospital. After two months, we detected reflux esophagitis near the esophago-gastric junction (EC junction) by upper digestive tract endoscopy. One of the biopsy sections of the lesion was suspected of malignancy. But he had not been followed up for a long time because he had been constantly suffered from aspiration pneumonia. Twenty-eight months later, endoscopy revealed a 0-IIc type-superficial cancer 20mm in diameter near the EC junction instead of esophagitis. We performed an esophagectomy and examined the resected specimen. The lesion was diagnosed as moderately differentiated squamous cell carcinoma which infiltrated into the mucosal muscularia. In this case, a small malignant lesion which had been concealed by reflux esophagitis, grew a detectable cancer lesion for 28 months. It is suggested that in a high risk group of esophageal cancer, including patients with head and neck cancer, treatment for reflux esophagitis as well as strict examination are necessary to detect a probable occurrence of cancer lesion in the esophagus.

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