Articles by Dr. Greg

Colorectal Cancers Types, Symptoms by Location and Spread

Pathophysiology of Colorectal Cancer How does colorectal cancer develop? The pathogenesis of colon cancer is complex. Colon cancer results from the accumulation of multiple genetic alterations that happen in a specific sequence over a period of time. The genetic alterations may result from sporadic mutations or from >> Read More ...

Inherited and Acquired Risk Factors for Rectal and Colon Cancer

Who is at risk of developing colon cancer? The development of colorectal cancer is complex interplay of  acquired and inherited factors. It should be noted that not every person with one or more of the risk factors will develop cancer of the colon and/or rectum. High risk patients, however, should be vigilant, undergo >> Read More ...

Diagnosing a Pleural Effusion (X-Ray Pictures) and Treatment

A pleural effusion is the excessive accumulation of fluid between the two layers of pleura that surrounds the lungs (pleural space). There is continuous formation of fluid in the pleural cavity which is continuously reabsorbed. This is normal. The balance between secretion and reabsorption is such that only a small amount >> Read More ...

Drainage of Pleural Fluid – Procedures, Tests and Results

Pleural tap A pleural tap can be performed for diagnostic purpose or for therapeutic reasons to drain the fluid around the lungs. A needle or a canula is passed into the pleural space and a small quantity, about 30 to 50 ml, of the fluid is collected for analysis. In some patients, with a small pleural effusion, this >> Read More ...

Retroperitoneal Abscess and Psoas Muscle Abscess

The retroperitoneal space is the area outside the peritoneum at the back of the abdominal cavity. A retroperitoneal abscess is a collection of pus in this retroperitoneal space. It can develop due to spread of an infection from adjacent organs or an infection of the blood as is seen with other types of intra-abdominal >> Read More ...

Abscess in the Appendix – Symptoms, Diagnosis and Treatment

An appendicular abscess (abscess in the appendix) is a complication of acute appendicitis – invasion of the appendix of the large intestine by bacteria usually due to an obstruction. The appendix exists at the junction of the small and large intestine and is exposed to the movement of digested food, waste matter and >> Read More ...

Benign Fasciculation Syndrome (BFS) Constant Muscle Twitching

Neurological disorders are a diverse group of diseases affecting the brain, spinal cord and nerves. Many neurological symptoms are part of occasional experiences in normal healthy individuals and is not linked to any disease – like pain, dizziness, numbness, muscle twitches, cramps or even tremors. Some neurological >> Read More ...

Palliative (Comfort) Care for Prostate Cancer Patients

Palliative care or comfort care is the treatment undertaken to prevent or reduce the symptoms of a life-threatening illness like cancer. It is usually indicated for cases where other therapeutic options have either failed to “cure” the cancer and the case has advanced to the point where any further treatments >> Read More ...

Causes and Symptoms of Intra-Abdominal Abscesses

An intra-abdominal abscess can develop from a wide variety of causes that lead to an infection of the peritoneal cavity (peritonitis) due to : Direct spread from abdominal organs Acute appendicitis Acute cholecystitis Pancreatitis Pancreatic cyst infection Perforation of abdominal organs Perforation of peptic ulcer >> Read More ...
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