Embolus vs. thrombus

Here are a few very good questions about CNS infarcts. There are two types of CNS infarcts: red (hemorrhagic) and pale (ischemic). (more…)

A 72 year-old male with a deep calf mass

A 72 year-old male presents with an ill-defined, deep-seated mass in his right calf. It has grown appreciably in the past few months and is now roughly the size of a golf ball. A core biopsy is performed, and a representative section is shown here.
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How does the ESR work?

Q. Could you please explain the ESR?

A. The erythrocyte sedimentation rate (ESR), also called a sedimentation rate or sed rate, is a test that is performed by putting blood in a tube (more…)

BOOP

Q. I wonder if you could help me a bit with an unusual case of pneumonia. Our patient is a 56-year-old male with who woke up one morning with dyspnea, fever and chest pain. (more…)