Skin inflammatory (nontumor)
Scabies (mite)

Author: Mowafak Hamodat, M.D., MB.CH.B, MSc., FRCPC (see Authors page)

Revised: 19 October 2018, last major update July 2011

Copyright: (c) 2002-2018,, Inc.

PubMed Search: Scabies (mite)

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Cite this page: Hamodat, M. Scabies (mite). website. Accessed February 18th, 2019.
Definition / general
  • Mite that produces burrows and extremely pruritic erythematous papules on interdigital skin, palms, wrists
Diagrams / tables

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Life cycle

Microscopic (histologic) description
  • Burrow appears as cleft in upper epidermis containing mite body parts
  • Epidermis exhibitis acanthosis, parakeratosis, spongiosis, with dense eosinophilic dermal infiltrate
  • In the dermis, there is superficial perivascular and sometimes diffuse infiltrate of lymphocytes and histiocytes, sometimes accompaned by neutrophils and less often eosinophils
  • In nodular skin lesions, the dermal infiltrate may be very dense and in addition to histiocytes, plasma cells, eosinophils, and lymphocytes, atypical and hyperchromatic cells may be evident
Microscopic (histologic) images

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Contributed by Dr. Daniel Ostler

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