A prank virus that does not cause damage. It does such things as randomly displaying a message on screen declaring "Peace on Earth" or causing the computer to make a clicking sound every time a key is ...

An example of an OSET (Ossifying Spindled and Epithelioid Tumor), a newly discovered and classified benign soft tissue tumor. Here, the OSET is seen as a surgically excised gross specimen (upper left) ...

Benign multiple sclerosis (MS) is a mild course of MS seen in 5-10% of MS patients. In people affected by benign MS, there is no worsening of functional ability even after 15 years of diagnosis.