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Results for “NECROBIOSIS LIPOIDICA”

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PubMed1990

Koebner's phenomenon and necrobiosis lipoidica diabeticorum.

In 1877, Dr Heinrich Koebner inflicted an experimental trauma on the uninvolved skin of a psoriatic patient. This resulted in the appearance of a typical psoriatic lesion at the site of trauma. This reaction, known as Koebner's phenomenon (KP), has subsequently been associated with several skin diseases. However, it has not been associated previously with necrobiosis lipoidica diabeticorum (NBL), a rare skin manifestation of diabetes mellitus. This report presents the unusual finding of NBL associated with KP in a patient with diabetes mellitus.

Adult↗
PubMed2005

gli-1 Oncogene is highly expressed in granulomatous skin disorders, including sarcoidosis, granuloma annulare, and necrobiosis lipoidica diabeticorum.

BACKGROUND: Sarcoidosis, which occurs most commonly in African American women, is a granulomatous multisystem disorder affecting the skin, lungs, and central nervous system. In a previous immunohistochemistry study of keloids, a scar granuloma stained highly positive for glioma-associated oncogene homologue (gli)-1. OBSERVATION: This observation led us to study whether gli-1, one of the vertebrate zinc finger transcription factor genes of the gli superfamily, is expressed in granulomatous skin disorders such as cutaneous sarcoidosis, granuloma annulare (GA), and necrobiosis lipoidica diabeticorum (NLD). Immunohistochemistry studies for gli-1 were performed on biopsy specimens from patients with cutaneous sarcoidosis, GA, and NLD. All sarcoid lesions were highly positive for gli-1 expression, and 75% of the cells demonstrated positivity with a stain intensity of 3 on a scale of 1 to 3. The gli-1 expression was confined to cutaneous granulomas. CD68 staining was highly positive in the sarcoid lesions as well. Similarly, GA and NLD lesions were uniformly positive for gli-1 expression. CONCLUSIONS: We found that gli-1 is inappropriately expressed in granulomatous lesions of the skin such as cutaneous sarcoidosis, GA, and NLD. These findings provide a rationale for clinical trials of inhibitors of gli-1 signaling, including tacrolimus and sizolimus, for the treatment of cutaneous sarcoidosis and other granulomatous disorders of the skin.

Biopsy, Needle↗