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Image Number 371 (Insect bite reaction 1)


Diagnosis: Insect bite reaction 1

Site: Back

Sex: M

Age: 53

Type: Clinical and Histology

Description: Pseudo target like lesions

Submitted by: Ian McColl

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Differential Diagnosis

History: This picture is very suggestive of Bed Bug bite reactions with their linear arrangement..The lesions are due to a hypersensitivity to the saliva of the bed bug giving rise to urticarial ,papular and plaque reactions at bite sites.The bedbug can produce several bites in a linear arrangement in the one night..Hepatitis B may be spread by bed bugs.

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