ISSN: 2455-8702

Imaging Journal of Clinical and Medical Sciences

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Target (Iris) Lesions of Erythema Multiforme

Surtie F, MBChB, Rehman HU*, FRCPC, FRCPI, FRCP (Glass), FACP

Dr HU Rehman, Clinical Associate Professor, Department of Medicine, Regina Qu'Appelle Health Region, Regina General Hospital, 1440 – 14th Avenue, Regina, SK, S4P 0W5, Canada

Author and article information

*Corresponding author: Dry HU Rehman, Clinical Associate Professor, Department of Medicine, Regina Qu'Appelle Health Region, Regina General Hospital, 1440 – 14th Avenue, Regina, SK, S4P 0W5, Canada, Tel: 13065664120; Fax: 13065664150; Email: [email protected]
doi : 10.17352/2455-8702.000008
Submitted: 25 August, 2014 | Accepted: 26 August, 2014 | Published: 28 August, 2014

Cite this as

Surtie F, Rehman HU, FRCPC, FRCPI, FRCP (Glass) Target (Iris) Lesions of Erythema Multiforme. Imaging J Clin Medical Sci. 2014; 1(2): 12-12. Available from: 10.17352/2455-8702.000008

Copyright License

© 2014 Surtie F, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

A 21-month old age girl presented with asymptomatic lesions on her right arm of 4 days duration. She denied sore throat, fever and cough and no lesions were found anywhere else including buccal mucosa. She had not taken any medications recently.

Indexing and Abstracting

Introduction

A 21-month old age girl presented with asymptomatic lesions on her right arm of 4 days duration. She denied sore throat, fever and cough and no lesions were found anywhere else including buccal mucosa. She had not taken any medications recently.

Figure 1: Q 1: What is the diagnosis? A: Sharply demarcated, round, red/pink macules target lesions of Erythema Multiforme. The typical target (iris) lesion of EM has a sharp margin, round shape and concentric colour zones. Q 2: What triggers it? A 2: Erythema multiforme (EM) is a hypersensitivity reaction usually triggered by infections and drugs. Herpes simplex is the most common triggering infection. It is self-limiting and resolves without complications. Many drugs have been implicated, most common being barbiturates, non-steroidal anti-inflammatory drugs, penicillins, sulphonamides, phenothiazines and anticonvulsants.
Figure 2: Q 1: What is the diagnosis? A: Sharply demarcated, round, red/pink macules target lesions of Erythema Multiforme. The typical target (iris) lesion of EM has a sharp margin, round shape and concentric colour zones. Q 2: What triggers it? A 2: Erythema multiforme (EM) is a hypersensitivity reaction usually triggered by infections and drugs. Herpes simplex is the most common triggering infection. It is self-limiting and resolves without complications. Many drugs have been implicated, most common being barbiturates, non-steroidal anti-inflammatory drugs, penicillins, sulphonamides, phenothiazines and anticonvulsants.

Q 1: What is the diagnosis?

A: Sharply demarcated, round, red/pink macules target lesions of Erythema Multiforme. The typical target (iris) lesion of EM has a sharp margin, round shape and concentric colour zones.

Q 2: What triggers it?

A 2: Erythema multiforme (EM) is a hypersensitivity reaction usually triggered by infections and drugs. Herpes simplex is the most common triggering infection. It is self-limiting and resolves without complications. Many drugs have been implicated, most common being barbiturates, non-steroidal anti-inflammatory drugs, penicillins, sulphonamides, phenothiazines and anticonvulsants.

 

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