CD133 expression in circulating hematopoietic progenitor cells.

Background: Circulating hematopoietic progenitors (HPCs) are involved in inflammatory diseases such as atherosclerosis, the immune response to cancer, and disorders of the hematopoietic system. HPC characterization by flow cytometry typically utilizes CD34 in combination with other cell surface markers to identify cell populations that give rise to specific hematopoietic lineages. CD133, also known as prominin-1, is a cell surface protein found in HPCs that has a similar but not interchangeable expression pattern with CD34 for characterization of HPC populations.

An Unusual Cause of Acute-Onset Chest Pain: Spontaneous Pneumomediastinum.

Spontaneous pneumomediastinum (SPM) is the presence of air in the mediastinum without any precipitating factor or predisposing disease. It is an uncommon, usually benign condition predominantly seen in young males. It typically presents with chest pain or dyspnea.

Subacute right ventricle perforation by pacemaker lead presenting with left hemothorax and shock.

Cardiac perforation by pacemaker is a rare but potentially fatal complication. Acute perforations occurring within twenty-four hours of insertion of pacemaker can lead to hemopericardium, cardiac tamponade, and death. Hemothorax occurring as an acute complication of pacemaker insertion is reported but extremely rare.

Idiopathic pulmonary haemosiderosis with celiac disease (Lane-Hamilton syndrome) in an adult - a case report.

Idiopathic pulmonary haemosiderosis (IPH) is a rare disorder of unknown cause characterised by haemoptysis, diffuse alveolar infiltrates and iron-deficiency anaemia. IPH predominantly affects children; it is rare in adults, in whom it usually manifests before 30 years. In adults, course is protracted with a better prognosis, in contrast to children.