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Open AccessCase Report
Healthcare 2014, 2(3), 338-345;

Perforating Granuloma Annulare — An Unusual Subtype of a Common Disease

Department of Dermatology and Venereology, Hospital Garcia de Orta, Av. Torrado da Silva, 2801-951 Almada, Portugal
Author to whom correspondence should be addressed.
Received: 16 June 2014 / Revised: 13 August 2014 / Accepted: 1 September 2014 / Published: 4 September 2014
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Perforating granuloma annulare (GA) is a rare subset of GA with an unknown etiology and chronic course. Herein, we report the case of 72 year-old women with a 3-month history of a post-traumatic, persistent, erythematous and exudative plaque located on her left leg. Differential diagnosis included mycobacterial infection, subcutaneous mycosis, perforating dermatoses, pyoderma and squamous cell carcinoma. The histopathology was highly suggestive of a perforating GA. The patient was treated with betamethasone dipropionate cream applied once daily and a complete resolution of the lesion was observed in three weeks. Despite being a very rare subtype of a common disease, perforating granuloma annulare has clinical and histopathological characteristic features that facilitate the differential diagnosis, avoiding unnecessary procedures and inadequate and potentially more invasive treatments. View Full-Text
Keywords: granuloma annulare; perforating GA; granuloma granuloma annulare; perforating GA; granuloma

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Alves, J.; Barreiros, H.; Bártolo, E. Perforating Granuloma Annulare — An Unusual Subtype of a Common Disease. Healthcare 2014, 2, 338-345.

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