An inherited form of osteolysis — the destruction of bone. There are several such syndromes. In one form of vanishing bone syndrome, there is osteolysis in the hands and feet, crippling arthritic changes in the hands, marked osteoporosis, and nodules beneath the skin of the palms and soles associated with autosomal recessive inheritance. The responsible gene is called the MMP2 gene. Affected family members have no MMP2 enzymatic activity. The loss of MMP2 messes with the matrix of the bone and causes vanishing bone syndrome.
- Vanishing lung syndrome
“scintigraphy shows a disappearance of perfusion, and angiography shows remnants of arterial branches without the capillary phase. Inside there may be growing an abandoned room.”
- Vanishing twin
A twin detected in early pregnancy that is miscarried, frequently by resorption, without clinical signs or symptoms. The surviving twin continues to grow and develop.
A vaccine against hepatitis A made of killed hepatitis A virus to stimulate the body’s immune system to produce antibodies against the hepatitis A virus.
- Varco, Richard L.
Innovative American surgeon (1912-2004) who helped perform the first successful open heart operation. On Sept. 2, 1952 at the University of Minnesota. Dr. Varco’s team, led by Dr. C. Walton Lillehei and Dr. F. John Lewis, cut off the flow of blood to the heart after lowering the patient’s body temperature to protect her brain. […]
- Variant Creutzfeldt-Jakob disease
Abbreviated vCJD. A human disease thought due to the same infectious agent as bovine spongiform encephalopathy (BSE), or mad cow disease. Both the human and bovine disorders are invariably fatal brain diseases with unusually long incubation periods measured in years, and are caused by an unconventional transmissible agent, a prion, resulting in the deposition of […]