A Case of Early Basaloid Carcinoma Concomitant with Early Squamous Cell Carcinoma of the Esophagus

Futoshi Miyazono, Shoji Natsugoe, Toru Kumanohoso, Keiichiro Uchikura, Saburo Nakashima, Takashi Aikou

First Department of Surgery, Kagoshima University School of Medicine

We experienced a case of early basaloid carcinoma concomitant with early squamous cell carcinoma of the esophagus. Though the 54-year-old man was diagnosed as having an esophageal carcinoma by endoscopic examination, he refused treatment. Three years and six months later, esophageal carcinoma was again detected. Previous endoscopic examination had revealed a superficially depressed lesion at 26 cm and a submucosal mass with an eroded surface at 30 cm from the incisor level. The former was probably confined to the mucosal layer, the latter to the submucosal layer. Endoscopic examination at admission revealed that both tumors seemed to have enlarged slightly. Subtotal esophagectomy with regional lymph node disection was carried out under right thoracotomy and laparotomy. Histopathologic examination of the resected specimen revealed two mucosal cancers, one of which tumor was newly found by histologic examination, and a submucosal cancer without lymph node metastasis. Histologically, the mucosal tumors were well-differentiated squamous cell carcinoma and the submucosal tumor was basaloid carcinoma. Such multiple esophageal cancers followed for a long time retrospectively are very rare. Furthermore, this case is interesting for its histogenesis and the malignant behavior of the esophageal carcinoma.

Key words
basaloid (-squamous) carcinoma, multiple esophageal cancer

Reprint requests
Futoshi Miyazono First Department of Surgery, Kagoshima University School of Medicine
8-35-1 Sakuragaoka, Kagoshima, 890 JAPAN

Accepted
March 8, 1995

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