Osteopetrosis is a rare inherited bone disorder originally described in 1904 by Albers-Schonberg, ... It is recognized that the hard brittle bone, often without a normal medullary canal, ...

Under the microscope, medullary bone and bone with osteopetrosis look remarkably similar, Schweitzer said. However, the two are chemically different.

Autosomal-recessive intermediate osteopetrosis is a diffuse sclerotic disorder due to carbonic anhydrase deficiency and associated with renal tubular dysfunction and cerebral calcifications.

Background Osteopetrosis is a rare, inherited, bone disorder, characterized by osteosclerosis, obliteration of the medullary cavity and calcified cartilage. The autosomal dominant form is ...

About 68 million years ago, a pregnant Tyrannosaurus rex died in ancient Montana. The finding is an exciting one — researchers verified that the T. rex was pregnant by looking at the organic ...