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Achalasia

Achalasia is a rare disorder that results from progressive destruction of the ganglion cells in the myenteric plexus esophageal wall. The distraction of the cell leads to the inability of the lower esophageal sphincter to relax and leads the loss of peristalsis of the distal esophagus. As a result there …

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Osteonecrosis of the Femoral Head

  Osteonecrosis, also known as avascular necrosis (AVN), aseptic necrosis or ischemic bone necrosis is a disease that can result in the death of bone cells. There are subsequent structural changes that lead to the femoral head collapse, secondary hip joint osteoarthritis which finally results in hip dysfunction. AVN is …