Abstract Background Pilonidal disease is seen at sacrococcigeal region in prevalent number of cases. We present an unusual case abscess lumbar which turned out to be a pilonidal sinus. Case presentation A 18-year-old male presented the outpatient clinic with swelling area for 1 month. Physical examination revealed inflammatory infiltrate 1,5*1,5cm, fluctuation, located projection L4-L5 vertebra...

The realization of bimetallic structures is one the major challenges manufacturing industry, to this aim different technologies are employed, among these vacuum brazing presents some advantages: technology, in fact, relatively easy use and relative low temperature process time avoid formation brittle intermetallics thermally affected zones. An application technology regenerative thrust chamber ...