Abstract:
:Alpha-fetoprotein (AFP)-producing esophageal tumors are extremely rare. We report herein the case of a 51-year-old man found to have an AFP-producing adenocarcinoma arising from esophageal proper mucosa. The patient presented for investigation of dysphagia, and esophagogram and endoscopy revealed a lesion about 2 cm in size with a depressed center surrounded by low nodular protrusions in the lower esophagus. The preoperative serum AFP concentration was elevated to 52.4 ng/ml. A subtotal esophagectomy was performed, and macroscopic examination of the resected specimen revealed a superficial protruding lesion. Histopathological studies showed a poorly differentiated adenocarcinoma with a single lymph node metastasis. The tumor had infiltrated the submucosal layer, but there was no evidence of lymphatic or venous invasion. Immunohistochemical study revealed tumor cells positive for AFP. There were no findings of Barrett's epithelium or any mucosal changes due to reflux esophagitis. An elevated AFP level 2 years after the operation led us to suspect tumor recurrence; however, diagnostic imaging studies showed no evidence of a recurrence or metastases. The serum AFP levels responded well to chemotherapy with transient decreased levels, but continued to rise until finally, 5 years after the operation, adenocarcinoma cells were detected in the pleural effusion. Thus, careful monitoring of the serum AFP levels at regular intervals could be a useful marker to indicate recurrence of esophageal carcinoma.
journal_name
Surg Todayjournal_title
Surgery todayauthors
Kobayashi N,Ohbu M,Kuroyama S,Kikuchi S,Shimao H,Mitomi H,Kakita Adoi
10.1007/s005950170035subject
Has Abstractpub_date
2001-01-01 00:00:00pages
915-9issue
10eissn
0941-1291issn
1436-2813pii
10.1007/s005950170035journal_volume
31pub_type
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