German Shepherd with warty skin

SIGNALMENT9-year-old, Canine, German Shepherd Dog, FS SOURCE/HISTORY:6-week history of skin/SQ mass. Growing rapidly with purulent and serous discharge. Patient also has chronic clinical disease/infection. From the top of the neck.  MICROSCOPIC DESCRIPTION:Expanding the dermis and deeper tissue, there is a multilocular cystic proliferation composed of cystic structures containing abundant luminal keratin (orthokeratotic …

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