Wednesday, May 30, 2018

Keratoacanthoma

A symmetric crater in the skin filled with keratin (really low power, slide held over condenser)

With peripheral 'lipping' of keratinocytes
Usually in elderly, face-head-neck region, the crater is visible on gross. It is the smooth roundish outline of the lesion that distinguishes it from a squamous carcinoma (plus that there's no dysplasia in spite of cell enlargement towards the center)
at
Labels: ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Next generation sequencing: Part 1

 Imagine solving a puzzle with 100 pieces, each piece a centimeter in size, something like this: The genome is considerably larger than this...

  • Shillong
    Two months in Shillong. The hilly streets.  Umiam (Barapani) lake  A khasi film  My college principal - serendipity! ...
  • An obscure leukemia
    56m; fever for a week; no organomegaly. Hb 2g/dL, WBC 1.18 L, Plt 40000. Peripheral blood shows 90% atypical cells: cleaved nuceli, mildly ...
  • The far side of the ocean
    The mangroves at Baratang, middle Anaman Abandoned Bunkers at Ross island Corbyn's c...