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Sarcoidosis is a multisystem granulomatous disorder characterized by the infiltration of noncaseating granulomata in the affected tissues. We report here the clinical case of a Caucasian Spanish patient suffering from sporadic early-onset sarcoidosis (EOS) with simultaneous cutaneous and articular symptoms. NOD2 (nucleotide-binding oligomerization domain; previously known as CARD15, caspase recruitment domain) gene mutational analysis revealed the presence of the recurrent R334W missense mutation. As in previously reported EOS cases, our patient was initially misdiagnosed with dermatitis.

Herein, we describe a patient with lesions of cutaneous herpes simplex virus 1 (HSV-1) infection over the knuckles of both hands in the context of an outbreak among boxers. Interestingly, the infection had an unusually long duration (4 weeks), and was not acquired directly through skin-to-skin contact, as it usually does among athletes (herpes gladiatorum). In our case, transmission was acquired through the use of shared boxing gloves contaminated by HSV-1. To the best of our knowledge, herpes gladiatorum, or wrestler's herpes, has not been described previously in boxers and infection over the knuckles is not commonly reported.

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Parvovirus B19 infection can cause a wide range of cutaneous manifestations, including papular-purpuric gloves-and-socks syndrome (PPGSS) and petechial bathing trunk eruption. We report a case of an immunocompetent woman with a primary parvovirus B19 infection presenting as concurrent PPGSS and petechial bathing trunk eruption. Parvovirus B19 seroconversion was confirmed several days after the onset of the clinical manifestations. The coexistence of these two cutaneous manifestations of primary parvovirus B19 infection has rarely been reported in the literature. It is important to recognize parvovirus B19 infection early, based on the cutaneous manifestations, to avoid potentially serious systemic complications in susceptible individuals.