International journal of dermatology
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Familial gigantic melanocytosis (FGM) is a rare disorder first described in 1984 and termed "familial melanopathy with gigantic melanocytes". The cause of the disorder is still unknown. Melanocytes in both hyper- and hypopigmented skin seem to be unable to deliver melanin to the surrounding keratinocytes. ⋯ The raindrop-like hypopigmentation in this disorder can be explained by a failure of melanocytes to deliver melanin to their surrounding keratinocytes. The cause of the presence of heavily pigmented keratinocytes in the hyperpigmented zones could not be determined. There is a strong possibility of a more widespread abnormality affecting not just the melanocytes.
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There are controversial reports about the direct role of Helicobacterpylori infection in chronic idiopathic urticaria. The indirect role of H. pylori infection in the induction of pathogenetic antibodies is not fully elucidated either. This study aims to reveal the association of H. pylori infection with autologous serum skin test positivity in chronic idiopathic urticaria (CIU) patients. ⋯ The results of our study suggest that chronic H. pylori infection does not appear to have a role in the induction of autoantibodies in CIU.
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Letter Case Reports
Pemphigoid gestationis post partum after changing husband.