Pilomatrixoma of the parotid region : A benign tumor mimicking metastatic cutaneous squamous cell carcinoma

Article Article scientifique Rapport de cas Pilomatrixoma of the parotid region : A benign tumor mimicking metastatic cutaneous squamous cell carcinoma eng 2025-02-01 2025-04 author Grieder Nikita Department of Otolaryngology - Head and Neck Surgery, University Hospitals of Geneva, Geneva, Switzerland. 805807 author Pucci Marcella Department of Radiology, University Hospitals of Geneva, Geneva, Switzerland. 405947 author De Vito Claudio Department of Clinical Pathology, University Hospitals of Geneva, Geneva, Switzerland. 795706 author Monnier Yan Department of Otolaryngology - Head and Neck Surgery, University Hospitals of Geneva, Geneva, Switzerland. 931300 Département des neurosciences cliniques (OTONO) author Dulguerov Nicolas Department of Otolaryngology - Head and Neck Surgery, University Hospitals of Geneva, Geneva, Switzerland. 503034 author Mermod Maxime Department of Otolaryngology - Head and Neck Surgery, University Hospitals of Geneva, Geneva, Switzerland. 403327 2159-2162 10.1016/j.radcr.2025.01.065 39975649 1930-0433 PMC11835548 https://www.sciencedirect.com/science/article/pii/S1930043325000639 Head and neck tumors in adults present a broad differential diagnosis, particularly when considering malignant neoplasms that require prompt diagnosis and intervention. We report the case of a 66-year-old woman with a progressively enlarging mass in the left parotid region. Initial assessments, including fine needle aspiration biopsy and imaging studies from outside institutions, suggested a diagnosis of squamous cell carcinoma. However, final histopathological analysis revealed that the mass was consistent with a pilomatrixoma. This case highlights the critical importance of meticulous radiological interpretation and the role of fine needle aspiration cytology (FNA) in accurately distinguishing between these 2 entities before initiating treatment. Fine needle aspiration biopsy Pilomatrixoma Squamous cell carcinoma Dewey 616.8 Dewey 616.0757 Dewey 616.07 137 Département de pathologie et immunologie 21F 62 Département de radiologie et informatique médicale 227 61 Département des neurosciences cliniques 226 false Radiology case reports 20 4 0485de0b-2c0e-452a-9d52-8e2358046a94 Article (Published version) Public Article_scientifique_from_europePmc.pdf 792777 application/pdf CC BY-4.0 40dcaf31c3d9c5ed9dc3d8861346e639beae9b3a46a5e1003f5cfa1cb28e8df6 openAccess Faculté de médecine / Section de médecine fondamentale / Département de pathologie et immunologie Faculté de médecine / Section de médecine clinique / Département de radiologie et informatique médicale Faculté de médecine / Section de médecine clinique / Département des neurosciences cliniques

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Pilomatrixoma of the parotid region : A benign tumor mimicking metastatic cutaneous squamous cell carcinoma	Radiology case reports			2025	47	172

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Grieder, Nikita