[A case of mediastinal mature teratoma with elevated of CA 19-9 in tumor fluid].
A 20-year-old female was diagnosed as mediastinal tumor and admitted to our hospital for the operation. Among the preoperative examinations, the serum level of CA 19-9 was within normal limits. The fluid inside the cystic tumor which was removed during the operation showed high levels of CA 19-9. We discussed the relationship between CA 19-9 and cystic lesions. Histopathological study revealed that CA 19-9 was produced in only epithelial cell of the cystic lesion. And we speculated that examination of serum CA 19-9 helps the diagnosis of cystic lesions.
Department of Thoracic Surgery, Nakano National Chest Hospital.
T
T
Takayama
M
M
Nonaka
H
H
Miyazawa
N
N
Ogawa
M
M
Yano
T
T
Morita
K
K
Inagaki
T
T
Arai
S
S
Niino
H
H
Tajima
D000328:Adult; D015295:Antigens, Tumor-Associated, Carbohydrate / Q000378:metabolism*; D005110:Extracellular Space / Q000276:immunology; D005260:Female; D006801:Humans; D008479:Mediastinal Neoplasms / Q000276:immunology*; D013724:Teratoma / Q000276:immunology*
D015295:Antigens, Tumor-Associated, Carbohydrate