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Goto K, Kiniwa Y, Hishima T, Honma K, Matsushita S, Aoki M, Nishihara K, Hiraki T. PIK3CA mutation status in apocrine carcinoma arising in apocrine gland hyperplasia/apocrine nevus: A study of four cases. J Cutan Pathol 2024; 51:399-402. [PMID: 38238254 DOI: 10.1111/cup.14588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 12/14/2023] [Accepted: 01/08/2024] [Indexed: 05/14/2024]
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 Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
- Department of Pathology, Itabashi Central Clinical Laboratory, Tokyo, Japan
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
- Department of Diagnostic Pathology, Chutoen General Medical Center, Kakegawa, Japan
- Department of Clinical Laboratory and Diagnostic Pathology, Osaka National Hospital, Osaka, Japan
- Department of Dermatology, Hyogo Cancer Center, Akashi, Japan
| | - Yukiko Kiniwa
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tsunekazu Hishima
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious Disease Center Komagome Hospital, Tokyo, Japan
| | - Keiichiro Honma
- Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, Osaka, Japan
| | - Shigeto Matsushita
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Megumi Aoki
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Katsuhiko Nishihara
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Tsubasa Hiraki
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
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Sasaki-Saito N, Goto K, Aoki M, Nishihara K, Hiraki T, Yoshikawa S, Matsushita S. Apocrine carcinoma with marked sebocyte-like cytological features: A report of two cases. J Cutan Pathol 2024; 51:92-98. [PMID: 37743579 DOI: 10.1111/cup.14539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/06/2023] [Accepted: 09/13/2023] [Indexed: 09/26/2023]
Abstract
Apocrine carcinoma cases with sebaceous differentiation have not been reported and can be misdiagnosed as sebaceous carcinoma. We present two cases of apocrine carcinoma with marked sebocyte-like cytological features. Tumors were observed in the left axilla of a 68-year-old man (Case 1) and the right axilla of a 72-year-old man (Case 2). Both patients presented with multiple lymph node metastases. Histopathology revealed densely distributed solid nests of tumor cells containing foamy cytoplasm and enlarged round nuclei with prominent nucleoli. The tumor cells diffusely expressed adipophilin, PRAME (cytoplasmic pattern), androgen receptor, BerEP4, and GCDFP15 but did not express p63 in both cases. PIK3CA E726K and H1047R mutations were detected in Cases 1 and 2, respectively. Tumor location in the axilla, the presence of eosinophilic granular cytoplasm, prominent nucleoli, and PIK3CA mutations, immunoreactivity for BerEP4 and GCDFP15, and lack of p63 immunoexpression findings matched apocrine carcinoma characteristics, but not sebaceous carcinoma. Thus, apocrine carcinoma can demonstrate intracytoplasmic lipid accumulation and rarely exhibit sebocyte-like cytological features. Apocrine carcinoma should be distinguished from sebaceous carcinoma due to the former's higher metastatic potential and lack of association with Muir-Torre syndrome.
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Affiliation(s)
- Natsuko Sasaki-Saito
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Keisuke Goto
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
- 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, Chutoen General Medical Center, Kakegawa, 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
| | - Megumi Aoki
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Katsuhiko Nishihara
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - Tsubasa Hiraki
- Department of Diagnostic Pathology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Shusuke Yoshikawa
- Department of Dermatology, Shizuoka Cancer Center Hospital, Sunto, Japan
| | - Shigeto Matsushita
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
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Michalek IM, Caetano Dos Santos FL, Zwolinski J, Olszewski W, Gałazka A, Prochorec-Sobieszek M, Durzynska M. Signet-Ring Cell/Histiocytoid Carcinoma: Report of Two Cases and Systematic Review of the Literature on the Epidemiology, Clinical Characteristics, and Pathological and Molecular Findings. Am J Dermatopathol 2023; 45:626-630. [PMID: 37506279 DOI: 10.1097/dad.0000000000002495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
ABSTRACT Signet-ring cell/histiocytoid carcinoma (SRCHC) is a rare appendageal tumor, mainly considering eyelids, more rarely axillae. This article describes 2 novel SRCHC cases of 71- and 66-year-old men and systematically reviews the literature on SRCHC. Of all cases reported in the literature, 73 (91.2%) were men and 7 (8.8%) were women. The median age at diagnosis was 71 years. Skin changes were located in the eyelids (68%) and axillae (32%). In all tested cases, SRCHC cells expressed CK7, CKAE1/AE3, EMA, CAM5.2, and AR and PIK3CA mutations. Future research should determine whether AR/PIK3CA-targeted therapies influence patients' survival.
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Affiliation(s)
- Irmina Maria Michalek
- Department of Pathology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
- Harvard Business School, Harvard, Boston, MA; and
| | | | - Jakub Zwolinski
- Head and Neck Cancer Department, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Wojciech Olszewski
- Department of Pathology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Adam Gałazka
- Head and Neck Cancer Department, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | | | - Monika Durzynska
- Department of Pathology, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
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Plotzke JM, Adams DJ, Harms PW. Molecular pathology of skin adnexal tumours. Histopathology 2022; 80:166-183. [PMID: 34197659 DOI: 10.1111/his.14441] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 06/30/2021] [Indexed: 11/28/2022]
Abstract
AIMS Tumours of the cutaneous adnexa arise from, or differentiate towards, structures in normal skin such as hair follicles, sweat ducts/glands, sebaceous glands or a combination of these elements. This class of neoplasms includes benign tumours and highly aggressive carcinomas. Adnexal tumours often present as solitary sporadic lesions, but can herald the presence of an inherited tumour syndrome such as Muir-Torre syndrome, Cowden syndrome or CYLD cutaneous syndrome. In contrast to squamous cell carcinoma and basal cell carcinoma, molecular changes in adnexal neoplasia have been poorly characterised and there are few published reviews on the current state of knowledge. METHODS AND RESULTS We reviewed findings in peer-reviewed literature on molecular investigations of cutaneous adnexal tumours published to June 2021. CONCLUSIONS Recent discoveries have revealed diverse oncogenic drivers and tumour suppressor alterations in this class of tumours, implicating pathways including Ras/MAPK, PI3K, YAP/TAZ, beta-catenin and nuclear factor kappa B (NF-κB). These observations have identified novel markers, such as NUT for poroma and porocarcinoma and PLAG1 for mixed tumours. Here, we provide a comprehensive overview and update of the molecular findings associated with adnexal tumours of the skin.
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Affiliation(s)
- Jaclyn M Plotzke
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | | | - Paul W Harms
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
- Department of Dermatology, University of Michigan, Ann Arbor, MI, USA
- Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA
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