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Okubo Y, Toda S, Kadoya M, Sato S, Yoshioka E, Hasegawa C, Ono K, Washimi K, Yokose T, Miyagi Y, Masudo K, Iwasaki H, Hayashi H. Clinicopathological analysis of thyroid carcinomas with the RET and NTRK fusion genes: characterization for genetic analysis. Virchows Arch 2024:10.1007/s00428-024-03777-w. [PMID: 38472412 DOI: 10.1007/s00428-024-03777-w] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/23/2024] [Accepted: 03/05/2024] [Indexed: 03/14/2024]
Abstract
Thyroid carcinomas exhibit various genetic alterations, including the RET and NTRK fusion genes that are targets for molecular therapies. Thus, detecting fusion genes is crucial for devising effective treatment plans. This study characterized the pathological findings associated with these genes to identify the specimens suitable for genetic analysis. Thyroid carcinoma cases positive for the fusion genes were analyzed using the Oncomine Dx Target Test. Clinicopathological data were collected and assessed. Among the 74 patients tested, 8 had RET and 1 had NTRK3 fusion gene. Specifically, of the RET fusion gene cases, 6 exhibited "BRAF-like" atypia and 2 showed "RAS-like" atypia, while the single case with an NTRK3 fusion gene presented "RAS-like" atypia. Apart from one poorly differentiated thyroid carcinoma, most cases involved papillary thyroid carcinomas (PTCs). Primary tumors showed varied structural patterns and exhibited a high proportion of non-papillary structures. Dysmorphic clear cells were frequently observed. BRAF V600E immunoreactivity was negative in all cases. Interestingly, some cases exhibited similarities to diffuse sclerosing variant of PTC characteristics. While calcification in lymph node metastases was mild, primary tumors typically required hydrochloric acid-based decalcification for tissue preparation. This study highlights the benefits of combining morphological and immunohistochemical analyses for gene detection and posits that lymph node metastases are more suitable for genetic analysis owing to their mild calcification. Our results emphasize the importance of accurate sample processing in diagnosing and treating thyroid carcinomas.
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Affiliation(s)
- Yoichiro Okubo
- Department of Pathology, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan.
| | - Soji Toda
- Department of Endocrine Surgery, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Mei Kadoya
- Department of Endocrine Surgery, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Shinya Sato
- Department of Pathology, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2Asahi-Ku, NakaoYokohama, Kanagawa, 241-8515, Japan
| | - Emi Yoshioka
- Department of Pathology, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Chie Hasegawa
- Department of Pathology, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Kyoko Ono
- Department of Pathology, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Kota Washimi
- Department of Pathology, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Yohei Miyagi
- Department of Pathology, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2Asahi-Ku, NakaoYokohama, Kanagawa, 241-8515, Japan
| | - Katsuhiko Masudo
- Department of Endocrine Surgery, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Hiroyuki Iwasaki
- Department of Endocrine Surgery, Kanagawa Cancer Center, 2-3-2, Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Hiroyuki Hayashi
- Department of Pathology, Yokohama Municipal Citizen's Hospital, 1-1 Mitsuzawanishimachi, Kanagawa-Ku, Yokohama, Kanagawa, 221-0855, Japan
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Huang G, Liu W, Han L, Zhang Y, Liu S, Zhang J, Niu B. Age and BRAFV600E Mutation Stratified Patients with Cytologically Benign Thyroid Nodules. Int J Gen Med 2023; 16:6025-6039. [PMID: 38148884 PMCID: PMC10750481 DOI: 10.2147/ijgm.s443711] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/12/2023] [Indexed: 12/28/2023] Open
Abstract
Purpose Our objective was to evaluate the diagnostic performance of BRAFV600E mutation for malignant, and to identify clinical characteristics associated with positive BRAFV600E mutation in low-risk cytological and ultrasound diagnostic thyroid nodules. This aims to identify patients who may benefit from BRAFV600E mutation testing and subsequent surgical intervention. Patients and Methods We analysis the clinical characteristics correlated with BRAFV600E mutation in our detection cohort, including 204 patients with 217 thyroid nodules, and separate analyses were performed in 103 thyroid nodules with benign cytological result. Signaling pathway and immune response associated with age and BRAFV600E mutation status were also evaluated in Asian patients with thyroid cancer from the Cancer Genome Atlas (TCGA) dataset. Results The positive BRAFV600E mutation was significantly associated with higher Ultrasound (US) classification (p<0.001) and fine-needle aspiration (FNA) categories (p<0.001). BRAFV600E mutation as a risk factor for malignancy, showing the optimal diagnostic efficacy for malignancy combined with FNA categories, with the AUC was 0.923. Otherwise, BRAFV600E mutation is a risk factor in screening malignancy in low-risk FNA and US classification, which is significant correlation with patients age. Patients over 50 years old exhibiting a higher percentage of positive BRAFV600E mutation when both ultrasound and FNA results indicate benign conditions, with higher risk of malignancy. Conclusion BRAFV600E mutation is an accurate adjunctive diagnostic marker on FNA to screen malignancy. In low risk of both ultrasound and FNA results, the positive BRAFV600E was significant increased in patients over 50 years old, which have higher risk of malignancy. Thus, the BRAFV600E mutation detection and further surgery should be strengthened in older patients with benign cytological and US results thyroid nodules.
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Affiliation(s)
- Guocong Huang
- Department of Thyroid and Breast Surgery, The First Hospital of Putian City, Fujian, People’s Republic of China
| | - Wei Liu
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, People’s Republic of China
| | - Li Han
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, People’s Republic of China
| | - Yue Zhang
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, People’s Republic of China
| | - Siyao Liu
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, People’s Republic of China
| | - Jiali Zhang
- Beijing ChosenMed Clinical Laboratory Co. Ltd., Beijing, People’s Republic of China
| | - Beifang Niu
- Computer Network Information Center, Chinese Academy of Sciences, Beijing, People’s Republic of China
- University of the Chinese Academy of Sciences, Beijing, People’s Republic of China
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