Acta Dermatovenerologica Alpina Pannonica et Adriatica最新文献

Q fever is a rare worldwide zoonosis, caused by the rickettsial bacteria Coxiella burnetii. There are many clinical manifestations of infection, but the most common ones are fever, atypical pneumonia, and/or liver disease. Cutaneous involvement, however, is not a typical feature of Q fever, but it is nevertheless present in up to 20% of cases. We present a 42-year-old male patient with Q fever and erythema exudativum multiforme (EEM)-like parainfectious exanthema, which to the best of our knowledge has not been described before. We recommend considering Coxiella burnetii infection in the differential diagnosis of an EEM-like rash in a patient with an unexplained or "query" fever.

Lichen planus (LP) is a chronic inflammatory disease of the skin and mucous membranes. The disease usually affects adults and is only rarely encountered in children. Typically, skin lesions include violaceous, polygonal, flat papules and plaques, affecting predilection sites such as the wrists, ankles, and lower back. However, clinical presentation can be heterogeneous and is often atypical in children. Various precipitating factors are known to play an important role in the pathogenesis of lichen planus, some of which may also be coincidental. LP occurring after an infection with Mycoplasma pneumoniae is a rare occurrence. We present the case of a 13-year-old boy with pruritic papular skin lesions on the extremities and trunk. In view of the clinical and histopathological findings, LP exanthematicus was diagnosed. To the best of our knowledge, our case is the first of pediatric exanthematous LP after M. pneumoniae infection that has been reported so far.

Linear IgA bullous dermatosis (LABD) is a rare autoimmune bullous disease characterized by linear IgA deposition along the skin basal membrane. In children, LABD classically presents with a "cluster of jewels" appearance, whereas in adults the classic presentation is itchy papules with tense vesicles and bullae on an erythematous base. We report the case of a 41-year-old woman with LABD that we suspect was induced by acute myeloid leukemia presenting with multiple vesicles and bullae that coalesced, forming the typical clinical manifestation of LABD and confirmed with histopathological and direct immunofluorescence. The patient was treated with a combination of oral and topical corticosteroids with excellent results.

Syringomas are eccrine-derived benign adnexal neoplasms with the highest prevalence in early adulthood. They predominantly occur in females. They are commonly located on the face, particularly the lower eyelids, which have a high demand for cosmetic enhancement. Periorbital syringomas continue to pose a therapeutic challenge, with no consistently effective treatment available. Intradermal injection of botulinum toxin A is one of the new treatment modalities for periorbital syringomas. We report a case of periorbital syringomas in a 53-year-old female patient successfully treated using intradermal botulinum toxin A monotherapy as a painless cost-effective treatment that produced better long-term results than carbon dioxide laser.

Introduction: Geminin, a (25 kDa) protein, was originally identified as a key regulator of DNA replication licensing in the cell cycle and of cell fate during embryonic nervous system formation. Although geminin is involved in mechanisms underlying the regulation of transcription and patterning in embryonic development, its expression and possible significance in human epidermal morphogenesis remains unknown.

Methods: Forty-one skin biopsy specimens obtained from human fetuses (10th to 23rd week of estimated gestational age) were processed for immunohistochemistry using a primary rabbit polyclonal antibody against geminin.

Results: Distinct and statistically significant qualitative and quantitative alterations in the spatiotemporal expression pattern of geminin were observed in the developing human epidermis.

Conclusions: The highly ordered expression of geminin in different layers of fetal human epidermis reported here for the first time suggests that this protein may play a significant role in epidermal morphogenesis. However, the mechanisms underlying the alterations of the geminin expression pattern during fetal development at the molecular level remain to be elucidated. Further studies are now warranted to address whether the expression pattern of geminin in the developing human epidermis is disturbed in fetuses with genodermatoses and whether these disturbances might be important for prenatal diagnosis of genodermatoses.