Primary non-Hodgkin's lymphoma of the sinonasal tract.

Objectives: We sought to review the records of patients seen at the Chaim Sheba Medical Center (Tel Hashomer, Israel) during a 10-year period with respect to the presenting features, management, and outcome of extranodal non-Hodgkin's lymphoma (NHL) of the sinonasal region.

Study Design: Eight patients were diagnosed with NHL of the paranasal sinuses from 1993 to 2003. The data were reviewed, and we noted the patient's age, sex, the presenting signs and symptoms, staging, histology, treatment, and outcome of NHL.

HER2/neu expression in adenoid cystic carcinoma of salivary gland origin: an immunohistochemical study.

Background: Adenoid cystic carcinoma (ACC) is a malignant tumor of salivary gland origin, which is characterized by a high rate of local recurrence and distant hematogenous metastasis. Despite aggressive surgical treatment and radiotherapy, the patient's long-term prognosis is dismal. Prompted by recent studies on the amplification of the oncogene HER2/neu in salivary gland tumors, we analyzed the immunohistochemical overexpression of HER2/neu in salivary glands ACC.