A very rare skeletal condition of uncertain etiology, characterized by the uncontrolled proliferation of distended, thin-walled vascular or lymphatic channels within bone, which leads to resorption and replacement of bone with angiomas and/or fibrosis.

Alternative form of Bekhterev's disease

(dated, medicine) Ankylosing spondylitis.

(economics) An increase in the value derived from the natural-resources sector of the economy, leading to a rise in the valuation of the currency increasingly based on the natural-resources sector, and thus causing a deterioration in the manufacturing sector by making the manufactured goods less competitive in the export marketplace compared to those manufactured by economies with lower valuation currencies, because they are relatively more expensive.

Hurler syndrome

histoplasmosis

(medicine) A mitochondrial myopathy with a typical onset before 20 years of age.

A genetic disorder that primarily affects the eye, usually leading to blindness, and sometimes involves mental retardation and/or progressive loss of hearing.

Glycogen storage disease type IV

Alternative form of Refsum's disease