Immunohistochemical study of matrix metalloproteinase 9 and tissue inhibitor of matrix metalloproteinase 1 in benign and malignant breast tissue--strong expression in intraductal carcinomas of the breast.

Objective: Matrix metalloproteinases (MMPs) are involved in carcinogenesis due to their tissue remodeling capability, and there is convincing evidence linking gelatinase B (MMP-9) with malignant cell invasion. Tissue inhibitor 1 of MMP (TIMP-1) is a strong inhibitor of MMP-9 but has also tumor-enhancing effects. Only few data exist on MMP-9 or TIMP-1 expression in tissue samples of different breast histology.

Ultrasonography-guided core needle biopsy in differential diagnosis of papillary breast tumors.

Background: Papillary lesions of the breast are considered diagnostically challenging for various reasons. A relatively high malignancy rate in final pathological analysis has in many cases necessitated excision of these lesions, regardless of core needle biopsy (CNB).

Purpose: To assess mammographic, sonographic, and CNB findings of papillary lesions, and to correlate them with final histology obtained by surgical excision.

Widening of the inferior alveolar canal: a case report with atypical lymphocytic infiltration of the nerve.

Widening of the inferior alveolar (mandibular) canal is a rare radiological finding. It is most often associated with neurofibromatosis. Rarely, a malignant process such as lymphoma may cause ill-defined enlargement of the mandibular canal.

Ultrasonography and core needle biopsy in the differential diagnosis of fibroadenoma and tumor phyllodes.

Background: The diagnosis of phyllodes tumors of the breast is challenging due to many similarities with common fibroadenomas.

Purpose: To determine the diagnostic accuracy of core needle biopsy in diagnosing phyllodes tumors and to analyze the ultrasonographic (US) features of phyllodes tumors and fibroadenomas.

Material And Methods: From 1999 to 2003, 1010 breast lesions underwent imaging-guided core needle biopsy.

Breast sonography in localizing the cause of nipple discharge: comparison with galactography in 52 patients.

Objective: The purpose of this study was to evaluate breast sonography in localizing abnormalities in the discharging duct in patients with spontaneous nipple discharge.

Methods: Fifty-two patients with unilateral bloody or serous nipple discharge and normal findings on palpation and mammography underwent breast sonography before surgical duct excision. The results of sonography were compared with the findings of galactography and histologic examination of the surgical specimen.