Syringoma-like eccrine sweat duct proliferation induced by radiation.

We report a 45-year-old woman with breast cancer who had undergone surgery and radiation and anti-estrogen therapy and presented with many reddish papules in the irradiated breast area. Skin biopsy of the affected area disclosed proliferation of eccrine sweat ducts and cystic structures; the clinical and histopathological features were consistent with syringoma-like eccrine sweat duct proliferation. The lesions spread rapidly on her chest during radiation therapy and regressed spontaneously 3 weeks after its completion.

External-beam radiation therapy for age-related macular degeneration: two years' follow-up results at a total dose of 20 Gy in 10 fractions.

Purpose: The efficacy of external-beam radiation therapy (RT) was evaluated in the treatment of eyes with subfoveal or juxtafoveal choroidal neovascularization in age-related macular degeneration (ARMD).

Materials And Methods: Twenty-one eyes of 18 patients with occult or mixed-type ARMD received a total dose of 20 Gy of 6 MV X-rays in 10 fractions. The follow-up time was 24 months.