1
|
Mi B, Wu D, Fan Y, Thong BKS, Chen Y, Wang X, Wang C. Thyroid Langerhans cell histiocytosis concurrent with papillary thyroid carcinoma: A case report and literature review. Front Med (Lausanne) 2023; 9:1105152. [PMID: 36743683 PMCID: PMC9892196 DOI: 10.3389/fmed.2022.1105152] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 12/30/2022] [Indexed: 01/20/2023] Open
Abstract
Langerhans cell histiocytosis (LCH) is a clonal neoplasm of myeloid dendritic cells, rarely involving the thyroid gland. Papillary thyroid carcinoma (PTC) is the most common histological subtype of thyroid cancer. We report a rare case of a 34-year-old Chinese woman who has LCH with PTC and cervical lymph node metastasis of LCH, with a review of the literature. The patient has thyroid nodules and cervical lymph node enlargement detected by neck ultrasound during physical examination. Fine needle aspiration cytology (FNAC) showed PTC with Hashimoto's thyroiditis and BRAF V600E mutation after thyroidectomy and lymph node dissection. Histopathological examination suggests that LCH was concurrent with classical PTC, accompanied by LCH cervical lymph node metastasis. No BRAF, HRAS, and TERT promoter mutations were detected in LCH metastatic lesions. The patient is in stable clinical condition currently.
Collapse
Affiliation(s)
- Bin Mi
- Department of Pathology, Pingyi County People’s Hospital, Linyi, China
| | - Di Wu
- Department of Pathology, Xuzhou Central Hospital, Xuzhou, China
| | - Yue Fan
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | | | - Yudong Chen
- Department of Ultrasound, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xue Wang
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,*Correspondence: Xue Wang,
| | - Chaofu Wang
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China,Chaofu Wang,
| |
Collapse
|
2
|
Goto K, Yoshikawa S, Kiyohara Y, Kukita Y, Miura K, Oishi T. Co-existence of BRAF V600E-mutated malignant melanoma and BRAF V600E-mutated Langerhans cell histiocytosis: A case report. J Cutan Pathol 2021; 49:393-398. [PMID: 34792818 DOI: 10.1111/cup.14171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/05/2021] [Accepted: 11/14/2021] [Indexed: 11/26/2022]
Abstract
Langerhans cell histiocytosis (LCH) is a neoplastic condition of Langerhans cells, and can be associated with other neoplasms, especially BRAF-mutant hematological tumors and papillary thyroid carcinoma. Here we present the first case of co-existing LCH and low cumulative sun damage (low-CSD) melanoma, both of which had a BRAF V600E mutation. A 49-year-old man had a 45 × 43 × 15 mm semi-pedunculated, pigmented tumor in his back but had no other systemic symptoms. Histopathology revealed a 2-mm-sized incidental focus of LCH within a large lesion of low-CSD melanoma. Diffuse immunoexpression of CD1a, langerin/CD207, S100 protein, and BRAF (VE1) was observed in the focus of LCH. Sanger sequencing with microdissection confirmed BRAF V600E mutation in the component of LCH. Interestingly, the advanced melanoma also harbored the same BRAF V600E mutation, although the significance of this tumor combination is still unknown.
Collapse
Affiliation(s)
- Keisuke Goto
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan.,Department of Pathology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan.,Department of Pathology, Itabashi Central Clinical Laboratory, Tokyo, Japan.,Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan.,Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan.,Department of Diagnostic Pathology, Osaka National Hospital, Osaka, Japan.,Department of Dermatology, Hyogo Cancer Center, Akashi, Japan
| | - Shusuke Yoshikawa
- Department of Dermatology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Yoshio Kiyohara
- Department of Dermatology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Yoji Kukita
- Laboratory of Genomic Pathology, Research Center, Osaka International Cancer Institute, Osaka, Japan
| | - Keiko Miura
- Department of Surgical Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takuma Oishi
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
| |
Collapse
|