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Huang Y, Dong Y, Li P, Zhou C, Li WX, Li ZJ, Liu Y, Bao YH, Liao DF. Quantitative analysis of a posterior fossa teratomas with unusual CT and MR Characteristics--illustrative case. Heliyon 2023; 9:e18471. [PMID: 37560666 PMCID: PMC10407040 DOI: 10.1016/j.heliyon.2023.e18471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Intracranial teratomas or other cystic lesions with atypical imaging manifestations can still be frequently seen clinically. The specific reasons for unusual imaging manifestations need to be further explored. OBSERVATIONS A case of adult teratoma in the posterior fossa with unusual imaging manifestations was reported. The chemical composition of its cystic fluid was quantitatively detected, and in vitro imaging simulation experiments were performed on some fluid substances with similar cystic fluid properties to explore the reasons for special imaging manifestations. The content of inorganic substances and protein in the cystic fluid were both low, with no melanin detected. In vitro experiments revealed that MR T1 signals could increase with protein content rising and changes in MR T2 signals presented no obvious correlation with it. CT values increased gradually with protein concentration rising. The substances with similar viscosity had similar CT values, whereas substance viscosity showed no significant correlation with changes in MR signals. CONCLUSION The abnormality of imaging manifestations cannot be confirmed as the result of "high protein content", nor can it be simply attributed to bleeding. Further research is required for the impact of the combination of paramagnetic particles and biofluid on imaging.
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Affiliation(s)
- Ying Huang
- Department of Neurosurgery, Shenzhen Samii Medical Center, Shenzhen, Guangdong, China
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, Changsha, China
- China International Neuroscience Institute, Beijing, China
| | - Yu Dong
- Department of Neurosurgery, Shenzhen Samii Medical Center, Shenzhen, Guangdong, China
| | - Ping Li
- Department of Neurosurgery, Shenzhen Samii Medical Center, Shenzhen, Guangdong, China
| | - Chuan Zhou
- Department of Neurosurgery, Shenzhen Samii Medical Center, Shenzhen, Guangdong, China
| | - Wei-Xin Li
- Department of Neurosurgery, Shenzhen Samii Medical Center, Shenzhen, Guangdong, China
| | - Zai-Jun Li
- Medical Imaging Department, Shenzhen Samii Medical Center, Shenzhen, Guangdong, China
| | - Yi Liu
- Clinical Laboratory, Shenzhen Samii Medical Center, Shenzhen, Guangdong, China
| | - Yu-Hai Bao
- Department of Neurosurgery, Shenzhen Samii Medical Center, Shenzhen, Guangdong, China
- Department of Neurosurgery, Xuanwu Hospital Capital Medical University, Beijing, China
- China International Neuroscience Institute, Beijing, China
| | - Duan-Fang Liao
- Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province, Hunan University of Chinese Medicine, Changsha, China
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