Pseudomyogenic Hemangioendothelioma Arising in the Maxillary Sinus, an Uncommon and Misdiagnosed Tumor: A Case Report.
Hafsa El Ouazzani, Olaya Hamidi, Alain Habimana et al.
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Case in brief
The report describes pseudomyogenic hemangioendothelioma (PMHE), a vascular neoplasm with intermediate-to-low-grade malignant potential, arising in the maxillary sinus. PMHE can show varied histological patterns and resemble vascular or myoid tumors and carcinomas, making pathological distinction challenging. The authors present the lesion as a diagnostic case and discuss its differential diagnoses; the abstract does not provide further clinical findings, investigations, or outcome.
What made this case unusual
The reported tumor arose in the maxillary sinus, an unusual head-and-neck site for PMHE; the authors describe it as the first such case to their knowledge.
Diagnostic / clinical pearl
Because PMHE has variable histology and can mimic several tumor types, include it in the differential diagnosis of a maxillary sinus neoplasm and distinguish it carefully on pathological assessment.