1
|
Osaki T, Gonda K, Murahata Y, Sunden Y, Amaha T, Kunisue N, Takahashi K, Ishizuka M, Tanaka T, Li L, Yokoe I, Yamashita M, Azuma K, Tsuka T, Ito N, Imagawa T, Okamoto Y. Photodynamic detection of a feline meningioma using 5-aminolaevulinic acid hydrochloride. JFMS Open Rep 2020; 6:2055116920907429. [PMID: 32206327 PMCID: PMC7074522 DOI: 10.1177/2055116920907429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Case summary The present study describes the case of a feline meningioma that was detected using 5-aminolaevulinic acid hydrochloride (5-ALA)-induced protoporphyrin IX (PpIX) fluorescence at surgery. An extra-axial mass in the temporoparietal region was observed by MRI. Following craniectomy and durotomy, photodynamic detection (PDD) was performed for detection of the tumour. Intratumour PpIX was detected using fluorescence spectrum evaluation and high-performance liquid chromatography. PDD revealed bright fluorescence of PpIX induced by 5-ALA, facilitating fluorescence-guided resection of the tumour tissue. Postoperative examination demonstrated an intratumour PpIX protein concentration of 16.8 nmol/g, and based on histopathological findings we diagnosed the mass as meningioma. Relevance and novel information PDD using 5-ALA has been used to identify the surgical margins during resection of primary human brain tumours. Recently, we have reported post-mortem PDD using 5-ALA for a canine glioblastoma. To our knowledge, this technique has not been previously used for the detection and resection of feline brain tumours. Our findings suggest that PDD using 5-ALA is useful for intraoperative fluorescence-guided resection of malignant meningioma in cats.
Collapse
Affiliation(s)
- Tomohiro Osaki
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Kengo Gonda
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Yusuke Murahata
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Yuji Sunden
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Takao Amaha
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | | | | | | | | | - Liming Li
- Department of Bio- and Material Photonics, Chitose Institute of Science and Technology, Chitose, Hokkaido, Japan
| | - Inoru Yokoe
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Masamichi Yamashita
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Kazuo Azuma
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Takeshi Tsuka
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Norihiko Ito
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Tomohiro Imagawa
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Yoshiharu Okamoto
- Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| |
Collapse
|