November 20, 2013

Slide Review: Milial Cyst

A milial cyst is a small, keratin filled cyst, often found on the face. This lesion is quite common in women who apply moisturizers, and can also be a complication of facial cosmetic dermatology such as dermabrasion, chemical peels, and laser resurfacing.

The hardened keratin sounds like a grain of sand embedded in the tissue, making a scraping sound at each pass of the blade. 

In these sections, you can see the stratified layers of keratin lining the cyst. 


September 17, 2013

TROUBLESHOOTING: Loose Knife Clamp Arm

Rolling the cryostat over bumpy cobblestone or tactile pavement can loosen the pins that hold the knife clamp arms. The microtome will probably look something like this:
Assuming everything was working just fine at the last job, all the parts should be rolling around somewhere at the bottom. Put the knife clamp arm back where it belongs. 
Now find the pin and insert it into the hole.
Use your heat sink to tap the pin all the way in. 
All fixed! 
The next time you need to go over bumpy pavement, ROLL THE CRYO SLOWLY.