Sinonasal inverted papillomas: recurrence, and synchronous and metachronous malignancy

[Inverted sinonasal papillomas. Review of 61 cases].

INTRODUCTION Inverted papillomas are benign sinonasal lesions that arise primarily from the lateral nasal wall which are characterized by their tendency to recur and propensity to be associated with malignancy. The aim of this work is to analyze our experience in the treatment of these lesions, especially through the endoscopic approach. MATERIAL AND METHOD We present 61 cases of sinonasal in...

Smoking and malignancy in sinonasal inverted papilloma.

OBJECTIVES/HYPOTHESIS The authors investigated clinical features of squamous cell carcinomas (SCC) arising in sinonasal inverted papillomas (IP) and risk factors responsible for their malignant transformation. STUDY DESIGN Retrospective analysis. METHODS In total, 162 patients diagnosed with sinonasal IP and treated between 1998 and 2009 at Pusan National University Hospital were enrolled. ...

Management of sinonasal inverted papillomas: endoscopic medial maxillectomy.

Inverted papillomas (IPs), although histologically benign, are aggressive lesions that may recur after excision. They usually present as unilateral firm, bulky, red and vascular masses. The objective of this case series is to discuss the surgical treatment options for IPs and to review the literature with a special emphasis on our experience with endoscopic medial maxillectomy. A retrospective ...

Immunohistochemical study on ADAM33 in sinonasal inverted papillomas and squamous cell carcinomas of the larynx.

INTRODUCTION ADAM33 protein is a member of the family of transmembrane glycoproteins composed of multidomains. Members of the ADAM family have different activities, such as proteolysis and adhesion, making them good candidates to mediate the extracellular matrix remodeling and changes in cellular adhesion that characterize certain pathologies and cancer development. MATERIAL AND METHODS The i...

A Contribution to the Etiopathogenesis, Diagnosis and Management of Sinonasal Inverted Papillomas