Scabies (mite)

Skin inflammatory (nontumor)
Infestations
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, PathologyOutlines.com, Inc.

PubMed Search: Scabies (mite)

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Table of Contents

Definition / general | Diagrams / tables | Treatment | Microscopic (histologic) description | Microscopic (histologic) images

Cite this page: Hamodat, M. Scabies (mite). PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/skinnontumorscabies.html. Accessed February 18th, 2019.

Definition / general

Mite that produces burrows and extremely pruritic erythematous papules on interdigital skin, palms, wrists

Diagrams / tables

Images hosted on other servers:

Life cycle

Treatment

Topical permethrin (Can Fam Physician 2010;56:1005)

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

Images hosted on PathOut servers:

Contributed by Dr. Daniel Ostler

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Mite