We report the case of an 80-year-old patient who had intense pruritus which did not respond to a 3-month treatment with topical corticosteroids. On dermoscopy examination of the excoriations, we found the typical dermoscopic aspect of the scabies mite at a distance. Dermoscopy allows identifying a triangular structure which corresponds to the anterior section of the mite including the mouth part and the 2 pairs of front legs. This aspect has been described as resembling a jetliner with its trail, a delta glider or a spermatozoid. Traditional diagnostic methods for scabies failed in this case because the mites were at a distance from the burrows. This was due to the fact that the reaction to the mite was less pronounced and the diagnosis is frequently missed. Dermoscopy is a useful tool for the diagnosis of scabies either as a diagnostic test or to guide the traditional diagnostic tests.

Fulminant herpetic sycosis is a rare but well-known manifestation of herpes simplex virus (HSV) infection occurring in the context of viral recurrence in immunodepressed patients. We present here the case of a 32-year-old male patient, without notable medical history, who developed papulovesicular lesions of the beard accompanied by fever, painful cervical lymphadenopathy and odynophagia, with a clinical evolution that was initially unfavourable under antibiotic treatment. The diagnosis of herpetic sycosis was established by means of direct immunofluorescence and culture which confirmed positivity for HSV-1 and serologies compatible with a primary viral infection. No sign for a latent immune deficit was found at the time of investigations. The clinical evolution was rapidly favourable with administration of intravenous aciclovir for 1 week. To our knowledge, herpetic sycosis as a presentation of primary viral infection has not been reported previously. The possibility of a herpetic sycosis of the beard must be considered in the case of non-response to antibiotic or antifungal treatment.