Control of rapid nitric acid decalcification.

Decalcification is commonly employed in most histopathology laboratories for the microscopical examination of bone and other calcified tissues. Plastic processing without decalcification may produce superior results in terms of eliminating shrinkage and for demnonstrating osteoid versus mineralised matrix'-' but may give poor cytological detail and is a much longer process. The diagnosis of non-metabolic diseases of bone such as infection and tumours requires good cellular morphology and