Radioactive Seed Localization Program for Patients With Nonpalpable Breast Lesions.

Without early diagnosis and treatment, many lives are lost to breast cancer. Increased breast cancer awareness has facilitated research to guide health care providers toward improving patient outcomes. Research in diagnostic and treatment modalities has expanded to focus on improving the quality of life for patients with breast cancer who are living longer than expected. Providers can offer patients with nonpalpable breast lesions new screening techniques and improved treatment options, including radioactive seed localization lumpectomy. This treatment offers patients the potential for decreased tumor re-excision for positive margins near the surgical site, a lower volume of excised breast tissue, decreased operative time, convenient surgical scheduling, and less pain. Additionally, radioactive seed localization lumpectomy can improve patient and staff member satisfaction.

Fourth ventricle rosette-forming glioneuronal tumor. Case report.

The authors describe a rosette-forming glioneuronal tumor of the fourth ventricle in a 29-year-old woman. She had been experiencing dizziness for 1 year and headaches for 1 month. Cranial computed tomography revealed a relatively circumscribed mass involving the inferior cerebellum and floor of the fourth ventricle with extension into the ventricle. Histologically, much of the tumor was piloid with Rosenthal fibers as well as telangiectatic blood vessels; other areas contained complete or incomplete neurocytic rosettes. This tumor type must be differentiated from pilocytic astrocytomas, other gliomas with a piloid glial component, and glioneuronal tumors arising from the floor of the fourth ventricle or inferior cerebellum. Recognition of, and long-term follow up for, this recently described pathological entity may clarify the nature of this lesion and strategies for its optimal management.