Zusammenfassung
Squamous cell carcinomas account for more than 80% of esophageal malignancies in Germany. Alcohol and tobacco smoke are two of the most important risk factors. In superficial esophageal squamous cell carcinoma, endoscopic mucosal resection (EMR) is a very useful and effective treatment modality. However, in patients with submucosal esophageal cancer, radical esophageal resection is regarded as ...
Zusammenfassung
Squamous cell carcinomas account for more than 80% of esophageal malignancies in Germany. Alcohol and tobacco smoke are two of the most important risk factors. In superficial esophageal squamous cell carcinoma, endoscopic mucosal resection (EMR) is a very useful and effective treatment modality. However, in patients with submucosal esophageal cancer, radical esophageal resection is regarded as the gold standard for treatment at present. We report the case of a 71-year-old female patient with alcohol-induced liver cirrhosis with esophageal varices and a therefore inoperable - early esophageal squamous cell carcinoma. Photodynamic therapy (PDT) using 5-aminolevulinic acid (5-ALA) seemed not to be an effective treatment modality due to its limited penetration depth (< 2 mm) and the liver toxicity of 5-ALA. PDT using Photofrin(R) with a higher penetration depth seemed to be associated with a high risk of bleeding due to the esophageal varices. Furthermore, this sensitizer is associated with a high rate of strictures and a long-lasting skin sensitivity. In contrast, arguments against an endoscopic mucosal resection (EMR) were endosonographically suspected submucosal tumor growth and a high risk of bleeding. Nevertheless, with respect to the lack alternatives we decided to perform an EMR after ligation of esophageal varices. The tumor could be resected in sano without major bleeding complication. Histology demonstrated a carcinoma in situ without submucosal invasion. After 3 months a second EMR was necessary due to recurrence. Meanwhile after a follow-up period of 18 months only low grade intraepithelial neoplasia without macroscopically suspicious lesions was observed.
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