Kidney structure investigations using scanning electron microscopy of corrosion casts--a state of the art review.

The corrosion casting technique using acrylic resins in the scanning electron microscope (SEM), was originally developed to investigate renal microvascular structure and is now also successfully used in studies on various other organs. However, in the last two decades nearly 100 papers have been published on the renal vascular anatomy of various taxa of vertebrates or on pathomorphological structures of kidneys, using this technique. Analyzing these works, trends and developments in this field can be summed up as follows: The majority of studies are anatomical works on the vascular system of kidneys from all vertebrate classes. In addition, experimental pathological investigations, mostly done using rodents, and documentation of pathologically altered renal structure form another large part of the publications covered in this review. Perspectives for future research on renal systems using this versatile method may be derived from this survey.