Correction to: Outpatient erbium:YAG (2940 nm) laser treatment for snoring: a prospective study on 40 patients.

In the originally published article, the name of the first author was incorrectly labeled. Given name is Isabelle and family name is Fini Storchi.

Treatment of the contralateral negative neck in supraglottic cancer patients with unilateral node metastases (N1-3).

Background: Elective treatment of the contralateral N0 neck in supraglottic cancer patients with unilateral metastases is controversial.

Methods: We reviewed 127 N1-3 cases with contralateral negative necks to compare elective contralateral dissection (ED: 24 cases) with a contralateral wait-and-see policy (WS: 103 cases) and subsequent delayed therapy (SDT: 40 cases) when contralateral disease became evident. Prognostic factors were studied to identify the risk of contralateral disease.

Prognostic significance of c-erbB-2 oncoprotein expression in intestinal-type adenocarcinoma of the sinonasal tract.

Background: The c-erbB-2 gene codes for a putative transmembrane protein, similar in structure to the epidermal growth factor receptor. Amplification and/or overexpression of the gene has been recently described with a prognostic significance in a variety of human adenocarcinomas.

Methods: A monoclonal antibody against the c-erbB-2 oncoprotein has been used immunocytochemically in a retrospective study of formalin-fixed, paraffin-embedded samples from 28 consecutive intestinal-type adenocarcinomas (ITACs) of the nose and paranasal sinuses.

Role of nitric oxide in angiogenesis and tumor progression in head and neck cancer.

Background: Angiogenesis (formation of new blood vessels) is associated with tumor growth and metastasis in patients with solid tumors, including those of the head and neck. Nitric oxide (NO) production may contribute to these processes. We assessed the role of the NO pathway in angiogenesis and tumor progression in patients with head and neck cancer.

Risk factors for distant metastases from carcinoma of the parotid gland.

Background: Distant metastases (DM) have become an increasingly common cause of death in cancer patients because of the increasing therapeutic control of locoregional disease. However, little data exist regarding the role of clinical factors in predicting the likelihood of DM in patients with carcinoma of the parotid gland.

Methods: To analyze the incidence of DM and the factors involved in developing DM, the authors retrospectively studied clinical and survival data from 124 consecutive patients with parotid gland carcinoma who were surgically treated at the Institute of Otolaryngology of the University of Florence.