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Multiple Erythematous Eroded Patches and Papules on the Scalp—Quiz Case

Multiple Erythematous Eroded Patches and Papules on the Scalp—Quiz Case Report of a case A 34-year-old man presented with a 6-year history of a recurrent pruritic eruption on the scalp. He was initially treated for seborrheic dermatitis without notable improvement. He later developed polydipsia and polyuria and was diagnosed with diabetes insipidus. After the patient's correct diagnosis was made after a biopsy of the scalp, he was treated with scalp radiation with resolution of the lesions. Two years later, his scalp eruption recurred. It initially started on the left frontoparietal area and then progressed to involve the other side of the scalp. A physical examination revealed diffuse erythematous patches and papules with erosions and crusts on both frontal and vertex scalp (Figure 1). The remainder of the skin examination was unremarkable. His laboratory test findings were within reference range except for the aspartate aminotransferase level of 50 U/L (reference range, 10-37 U/L) and alanine transaminase level of 96 U/L (reference range, 5-37 U/L) (to convert aspartate aminotransferase and alanine aminotransferase to microkatalsper liter, multiply by 0.0167). A punch biopsy specimen was taken from the left scalp and submitted for histopathologic evaluation (Figure 2). Figure 1. View LargeDownload Figure 2. View LargeDownload http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Dermatology American Medical Association

Multiple Erythematous Eroded Patches and Papules on the Scalp—Quiz Case

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Multiple Erythematous Eroded Patches and Papules on the Scalp—Quiz Case

Abstract

Report of a case A 34-year-old man presented with a 6-year history of a recurrent pruritic eruption on the scalp. He was initially treated for seborrheic dermatitis without notable improvement. He later developed polydipsia and polyuria and was diagnosed with diabetes insipidus. After the patient's correct diagnosis was made after a biopsy of the scalp, he was treated with scalp radiation with resolution of the lesions. Two years later, his scalp eruption recurred. It initially started...
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Publisher
American Medical Association
Copyright
Copyright © 2008 American Medical Association. All Rights Reserved.
ISSN
0003-987X
eISSN
1538-3652
DOI
10.1001/archdermatol.2007.11-a
Publisher site
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Abstract

Report of a case A 34-year-old man presented with a 6-year history of a recurrent pruritic eruption on the scalp. He was initially treated for seborrheic dermatitis without notable improvement. He later developed polydipsia and polyuria and was diagnosed with diabetes insipidus. After the patient's correct diagnosis was made after a biopsy of the scalp, he was treated with scalp radiation with resolution of the lesions. Two years later, his scalp eruption recurred. It initially started on the left frontoparietal area and then progressed to involve the other side of the scalp. A physical examination revealed diffuse erythematous patches and papules with erosions and crusts on both frontal and vertex scalp (Figure 1). The remainder of the skin examination was unremarkable. His laboratory test findings were within reference range except for the aspartate aminotransferase level of 50 U/L (reference range, 10-37 U/L) and alanine transaminase level of 96 U/L (reference range, 5-37 U/L) (to convert aspartate aminotransferase and alanine aminotransferase to microkatalsper liter, multiply by 0.0167). A punch biopsy specimen was taken from the left scalp and submitted for histopathologic evaluation (Figure 2). Figure 1. View LargeDownload Figure 2. View LargeDownload

Journal

Archives of Dermatology – American Medical Association

Published: Jan 1, 2008

Keywords: scalp,papule

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