ArticleHead and neck pathology2021
YAP1-MAML2-Rearranged Poroid Squamous Cell Carcinoma (Squamoid Porocarcinoma) Presenting as a Primary Parotid Gland Tumor.
Article in Head and neck pathology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 21 citations in OpenAlex.
- The SALV-Dataset Registry: An Expertly Curated Digital Clinicopathological Dataset for Salivary Gland Tumor Research and AI-Assisted Diagnostic Tools.Head and neck pathology · 2026Article
- Recent developments in salivary gland pathology after the WHO 2024 classification: new developments in existing entities and evolving new entities.Virchows Archiv : an international journal of pathology · 2026Review
- Skin-analogue primary poroid neoplasms of the head and neck with YAP1/WWTR1::MAML2/NUTM1 fusions: clinicopathologic and genetic spectrum of a novel tumor family delineated in a series of 10 cases.Virchows Archiv : an international journal of pathology · 2026Article
- Thymus-like phenotype in benign lymphoepithelial neoplasms of salivary glands: clinicopathological and molecular characterization and reappraisal of relationship to non-sebaceous lymphadenoma.Virchows Archiv : an international journal of pathology · 2026Article
- YAP1::MAML2-Rearranged Poroid Squamous Cell Carcinoma Arising in a Non-sebaceous Lymphadenoma of the Parotid Gland.Head and neck pathology · 2025Article
- Conundrum of 3N: nasopharyngeal nonkeratinizing non-viral carcinoma-reappraisal of fusions and report of two consecutive cases with unusual molecular findings.Virchows Archiv : an international journal of pathology · 2025Article
- The YAP1-MAML2 fusion drives tumorigenesis and sustains tumor growth.Molecular therapy. Oncology · 2024Article
- Metastatic cutaneous squamous cell carcinoma accounts for nearly all squamous cell carcinomas of the parotid gland.Virchows Archiv : an international journal of pathology · 2024Review
- Comprehensive analysis of DNA methylation gene expression profiles in GEO dataset reveals biomarkers related to malignant transformation of sinonasal inverted papilloma.Discover oncology · 2024Article
- "PRRX1-rearranged mesenchymal tumors": expanding the immunohistochemical profile and molecular spectrum of a recently described entity with the proposed revision of nomenclature.Virchows Archiv : an international journal of pathology · 2023Article
- Recent Advances on Immunohistochemistry and Molecular Biology for the Diagnosis of Adnexal Sweat Gland Tumors.Cancers · 2022Review
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5 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Porocarcinoma (synonym: malignant eccrine poroma) is a rare aggressive carcinoma type with terminal sweat gland duct differentiation. The squamous variant of porocarcinoma is even less frequent and might be indistinguishable from conventional squamous cell carcinoma (SCC). We herein describe the first case of a carcinoma presenting as a primary parotid gland malignancy in a 24-year-old male without any other primary tumor. Total parotidectomy and neck dissection were performed followed by adjuvant chemoradiation. The patient remained alive and well 10 months after diagnosis. Histology showed keratinizing SCC infiltrating extensively the parotid gland with subtle poroid cell features. Oncogenic HPV infection was excluded by DNA-based testing. NGS analysis using the TruSight RNA fusion panel (Illumina) revealed a novel YAP1-MAML2 gene fusion. This gene fusion was reported recently in a subset of cutaneous porocarcinoma and poroma. This case of poroid SCC (or squamoid porocarcinoma) adds to the differential diagnosis of SCC presenting as parotid gland tumor and highlights the value of molecular testing in cases with unusual presentation.
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