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The Korean Journal of Pathology 1998;32(4): 315-317.
Adenocarcinoma Arising in Sacrococcygeal Teratoma: A case report.
Hae Jeong Choi, Mi Jin Gu, Yeong Kyung Bae, Joon Hyuk Choi, Jae Hwan Kim
1Department of Pathology, Yeungnam University College of Medicine, Daeku, Korea.
2Department of General Surgery, Yeungnam University College of Medicine, Daeku, Korea.
ABSTRACT
We experienced a case of adenocarcinoma arising in sacrococcygeal teratoma. The patient was a 52-year-old woman. She was admitted due to one month of sacral pain. She had a sacral mass since birth. On physical examination, anal fistula was present at the perianal area and pus drainage was noted. MR image showed multiple variable-sized cysts with inhomogeneous density. Resected specimen, mesuring 12.5 7.0 cm in diameter, showed multiple variable-sized cystic lesions admixed with grayish solid portion. The cysts contained mucoid material. The microscopic examination showed mature teratoma composed of cysts lined by pseudostratified ciliated columnar epithelium, intestinal mucosa, mature cartilage, bone, and fat tissue. A moderately differentiated adenocarcinoma developed from the cystic area in the mass.
Key Words: Sacrococcygeal teratoma; Adult; Adenocarcinoma