Skin inflammatory (nontumor)
Scabies (mite)

Topic Completed: 1 July 2011

Revised: 2 April 2019

Copyright: 2002-2019,, Inc.

PubMed Search: Scabies (mite)

Mowafak Hamodat, M.B.Ch.B., M.Sc.
Page views in 2018: 3,420
Page views in 2019 to date: 2,522
Cite this page: Hamodat M Scabies (mite). website. Accessed August 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

Contributed by Dr. Daniel Ostler

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