Bronchitis is an inflammation of the air passages within the lungs. It occurs when the trachea (windpipe) and the large and small bronchi (airways) within the lungs become inflamed because of infection or other causes. Bronchitis is one of the disease condition (together with asthma) that defines COPD or chronic obstruct pulmonary disease. They are also known as blue bloaters since lack of oxygen can cause cyanosis in patients with bronchitis.

Cholecystitis is the inflammation if the gall bladder. Read the pathophysiology, schematic diagram and concept map of cholecystitis.

Osteogenesis Imperfecta (OI) or Brittle Bone Disease is a hereditary disease of bones and connective tissue that may cause varying degrees of skeletal fragility, thin skin, blue sclerae, poor teeth, hypermobility of joints, and progressive deafness

Tuberculosis is an acute or chronic infection caused by Mycobacterium tuberculosis, it is characterized by pulmonary infiltrates, formation of granulomas with caseation, fibrosis and cavitation.

Emphysema is an abnormal, irreversible enlargement of air spaces distal to terminal bronchioles due to destruction of alveolar walls, resulting in decreased elastic recoil properties of lungs.

Acute Lymphoblastic Leukemia (ALL) is a common form of leukemia, indicated with an abnormal growth of lymphocyte precursors. When left untreated, leukemia is invariably fatal, commonly because of complications that results from leukemic cell infiltration of bone marrow or vital organs.

Choledocolithiasis is the presence of gallstones in the common bile duct.

A heart attack, known in medicine as an acute myocardial infarction (AMI or MI), occurs when the blood supply to part of the heart is interrupted. This is most commonly due to occlusion (blockage) of a coronary artery following the rupture of a vulnerable atherosclerotic plaque, which is an unstable collection of lipids (like cholesterol) and white blood cells (especially [...]