Related Experiment Video
Updated: Oct 10, 2026
Aqueous Humor as a Liquid Biopsy for Retinoblastoma: Clear Corneal Paracentesis and Genomic Analysis
Published on: September 7, 2021
Primary choroid plexus carcinoma producing carbohydrate antigen 19-9
T Inamura1, S Nishio, Y Miyagi
1Department of Neurosurgery, Neurological Institute, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
Abstract:
An autopsy case of primary choroid plexus adenocarcinoma arising in a 40-year-old female, who was associated with a high serum level of a carbohydrate antigen 19-9 (CA19-9), is herein presented. After a subtotal removal of a tumor in the left lateral ventricle, the serum level of CA19-9 decreased rapidly, and immunohistochemical examinations of tumor tissue specimens obtained at surgery revealed intense reactivity for CA19-9. The present case may be the first example in which a primary choroid plexus carcinoma was shown to produce CA19-9.