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Table 2 Description of histological types of benign and malignant tumours and other lesions

From: Clinicopathological features of 214 maxillary sinus pathologies. A ten-year single-centre retrospective clinical study

Lesion Histological Type
Benign tumours (87.9%) 1 fibrous lipoma
1 cavernous haemangioma
1 cystic ameloblastoma
2 osteomas
Malignant tumours (9.8%) 9 sinonasal epidermoid carcinoma (6 undifferentiated)
5 enteric-type mucinous adenocarcinomas
2 diffuse large B-cell lymphoma
1 NK/T lymphoma, nasal type
1 cystic adenoid carcinoma
1 basal-cell carcinoma
1 carcinosarcoma
1 Esthesioneuroblastoma
1 metastasis of clear-cell renal tumour
Other lesions (2.3%) 1 Mucosal thickening
1 Hyperostosis
1 Organised haematoma
1 Non-necrotising granulomatosis (granulomatosis with polyangiitis (GPA))
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