| Abstrakt: |
Introduction: Glomangiopericytoma is a rare mesenchymal tumor that arises in the nasal or paranasal cavity with low malignant potential. It comprises less than 0.5% of all nasosinusal neoplasms and occurs in patients with an average age of 60 years. Patients often present with epistaxis, nasal obstruction and headache. Visual disorders, chronic sinusitis and paresthesia may also occur. Differential diagnosis can be facilitated by performing tomography and/or resonance. However, the definitive diagnosis is obtained by histopathological analysis after biopsy or complete resection. Objectives: To demonstrate the importance of rare nasal tumors as a differential diagnosis in unilateral nasal obstructions. Resumed report: A 66-year-old male patient, hypertensive and former smoker, presented with unilateral nasal obstruction, yellowish rhinorrhea and recurrent epistaxis in the right nasal cavity for 4 years. On examination: a pinkish lesion was visualized, with a smooth surface, insinuating into the right nasal vestibule, associated with enlargement of the nasal pyramid. Tomography and resonance showed an expansive formation with soft tissue density and heterogeneous contrast enhancement, lobulated contours, located in the right nasal cavity with extension to the ethmoid cells, frontal recess and choana, measuring 8.9 cm. The lesion was biopsied and, with a histopathological and immunohistochemical study, the diagnosis of glomangiopericytoma was reached. Once the benign etiology was confirmed, the lesion was resected and the new histopathological confirmed the diagnosis obtained. Conclusion: Unilateral nasal obstruction requires a differential diagnosis with nasosinusal tumors and, with the elucidation of the etiology, an adequate therapeutic proposal is possible. [ABSTRACT FROM AUTHOR] |
