Salvage surgical resection for isolated locally recurrent inguinal lymph node metastasis of penile cancer: international study collaboration.

Purpose: We assessed the merit of performing salvage inguinal lymph node dissection in those infrequent cases of penile cancer with locally recurrent inguinal lymph node metastases in the absence of other suspected sites of disease.

Materials And Methods: A total of 20 patients were retrospectively identified as having undergone salvage inguinal lymph node dissection for locally recurrent penile cancer. Patients were previously treated with primary inguinal lymph node dissection with curative intent.

Efficient high-energy femtosecond pulse compression in quadratic media with flattop beams.

Using a Gaussian-to-flattop beam reshaper and a frequency-doubling crystal, we demonstrate highly efficient and spatially uniform pulse compression of 1mJ, ~100fs pulses from a regenerative Ti:sapphire amplifier. The technique has general applicability to all-bulk self-defocusing-type cascaded-quadratic compressors, providing a way to increase peak power and intensity for a wide range of amplified femtosecond pulsed lasers.