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Smallpox Prognosis

Smallpox is a highly infectious disease caused by the variola virus, an orthopoxvirus. Humans are the only known reservoir of this virus, thus no known animal or insect reservoirs have been identified. As routine vaccination is no longer undertaken, exposure to variola virus has the potential to cause high rates of morbidity and mortality in human population.

22 Nov 2009

Dermatomyositis Diagnosis

Dermatomyositis can often be diagnosed based on assessment of symptoms. Although the disease primarily affects the muscles and skin, it is a systemic condition and can also involve the lungs, joints, esophagus and sometimes the heart.

22 Nov 2009

Dermatomyositis Pathology

Dermatomyositis is an inflammatory disorder that primarily causes muscle weakness and a skin rash. As a systemic condition, dermatomyositis can also involve the lungs, joints, esophagus and sometimes the heart.

22 Nov 2009

Dermatomyositis Symptoms

In adults, the age of onset is usually between the late 40s and early 60s and in children, symptoms usually begin between 5 and 15 years of age. The condition is more common among females than men.

22 Nov 2009

Dermatomyositis Causes

The exact cause of dermatomyositis is not clearly understood, although the condition shares many characteristics with autoimmune disorders such as lupus, scleroderma, and vasculitis.

22 Nov 2009

Dermatomyositis Presentation

Five subgroups of myositis or inflammatory myopathy were suggested by Bohan and Peter in the 1970s.

22 Nov 2009

What is Dermatomyositis?

Dermatomyositis is an inflammatory condition characterized by muscle weakness and a skin rash. Although the disease primarily affects the muscles and skin, it is a systemic condition and can also involve the lungs, joints, esophagus and sometimes the heart.

22 Nov 2009

Noonan Syndrome History

Noonan syndrome is a pleiomorphic autosomal dominant disorder with cardinal features such as short stature, distinctive facial dysmorphia, webbed neck, and heart defects. The condition was described more than half a century ago, and in the past decade significant progress has been made in elucidating the pathogenesis and genetics of this disorder.

22 Nov 2009

Noonan Syndrome Diagnosis

Noonan syndrome is a heterogeneous, but clinically recognizable, multiple congenital anomaly syndrome.

22 Nov 2009

Noonan Syndrome Symptoms

Noonan syndrome is one of the most common non-chromosomal disorders in children with congenital heart disease.

22 Nov 2009

Noonan Syndrome Causes

Noonan syndrome has a genetic background with the autosomal dominant pattern of inheritance.

22 Nov 2009

What is Noonan Syndrome?

Noonan syndrome is a common autosomal dominant multiple congenital anomaly syndrome.

22 Nov 2009

Spondylolisthesis Treatment

The treatment for patients with spondylolisthesis depends on the severity of the condition and the extent of movement of the vertebra.

22 Nov 2009

Spondylolisthesis Symptomatology

The symptomatology of spondylolisthesis is highly variable between different patients with the condition.

22 Nov 2009

Spondylolisthesis Pathology

There are five main types of spondylolisthesis that have distinct causes and associated pathologies.

22 Nov 2009

What is Spondylolisthesis?

Spondylolisthesis describes the anterior displacement of a vertebra or the vertebral column in relation to the vertebrae below. It was first described in 1782 by Belgian obstetrician, Dr. Herbinaux. He reported a bony prominence anterior to the sacrum that obstructed the vagina of a small number of patients. The term “spondylolisthesis” was coined in 1854, from the Greek “spondyl” for vertebrae and “olisthesis” for slip. The variant "listhesis" is sometimes applied in conjunction with scoliosis. These "slips" occur most commonly in the lumbar spine.

22 Nov 2009