Ann Dermatol.  2009 Nov;21(4):413-415. 10.5021/ad.2009.21.4.413.

A Case of Atypical Granuloma Annulare Involving Both Ears

• Kim JG
• Lee SH
• Yoon TJ

• KMID: 2156509
• DOI: http://doi.org/10.5021/ad.2009.21.4.413

Abstract

We report a rare case of granuloma annulare (GA), affecting both ear antihelixes, in a 28-year old male patient that presented with a 1-year history of non-tender, firm, skin-colored, 1~5 mm papules on both ear antihelixes. There was no history of trauma. An excisional biopsy specimen taken from one of the lesions of the right ear revealed infiltration of histiocytes and lymphocytes around a zone of collagen alteration in the dermis. Based on the clinical and pathological findings, the patient was diagnosed with a rare case of bilateral GA of both antihelixes; this is the first report in the Korean dermatology literature.

Keyword

Bilateral ear antihelical area; Granuloma annulare

MeSH Terms

Biopsy
Collagen
Dermatology
Dermis
Ear
Granuloma
Granuloma Annulare
Histiocytes
Humans
Lymphocytes
Male
Collagen

Figure

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  Fig. 1 Multiple skin-colored, firm, non-tender papules on the both ear antihelical areas.

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  Fig. 2 An acellular zone of degenerated collagen is surrounded by palisading chronic inflammatory cells including histiocytes (H&E, ×40).

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  Fig. 3 Increasing mucin deposits in the central zone of a granuloma (Alcian blue stain, ×100).

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