The incidence of melanoma has recently been increasing. BRAF mutations have been found in 40–60% of melanomas. The increased activity of BRAF V600E leads to the activation of downstream signaling through the mitogen-activated protein kinase (MAPK) pathway, which plays a key role as a regulator of cell growth, differentiation, and survival. The use of BRAF inhibitors in metastatic melanoma with BRAF mutation ensures clinical improvement of the disease. Vemurafenib and dabrafenib are two selective BRAF inhibitors approved by the Food and Drug Administration (FDA). Both drugs are well tolerated and successfully used in clinical practice. However, some adverse reactions have been reported in patients in the course of treatment. Cutaneous side effects are the most common adverse events among them with a broad spectrum. Both the case reports and several original clinical trials reported cutaneous reactions during the treatment with BRAF inhibitors. In this review, the common cutaneous side effects of BRAF inhibitors in the treatment of metastatic melanoma with BRAF V600E mutation were reviewed.
Levetiracetam (LEV) is an established second generation anti-epileptic drug and LEV associated severe cutaneous reactions are rare. Here we report the case of psoriasiform drug eruption in a patient with newly diagnosed epilepsy who had been treated with levetiracetam. To our knowledge this is the first report of a patient with a psoriasiform eruption that appeared after the administration of LEV.
Alopecia has a significant negative impact on the quality of life. Unfortunately, there is no satisfactory cure for most types of alopecia. Alopecia is divided into cicatricial and noncicatricial types. Androgenetic alopecia, alopecia areata, and telogen effluvium are common forms of noncicatricial alopecias. In order to treat or improve the appearance, various procedures that are being applied for different types of alopecia including mesotherapy, microneedling, platelet-rich plasma, low-level light therapy, and stem-cell therapy with variable outcomes are reviewed in this chapter.
Acne is a dermatological disorder that can be more commonly seen in adolescents as well as younger patients. The pediatric acne is classified according to the age groups as neonatal acne, infantile acne, mid-childhood acne, and prepubertal acne. The presentation, pathogenesis, differential diagnosis, and treatment of the disease vary in each age group. Early diagnosis is important to prevent the scar formation and determine the underlying abnormalities.
Behçet's disease (BD) is a multisystemic vasculitis of unknown aetiology, initially reported by Turkish dermatologist Hulusi Behçet in 1937. Hulusi Behçet presented the disease as a triple symptom complex with recurrent aphthosis, genital ulceration and recurrent hypopyon uveitis. But subsequent studies have shown that it can affect many organs with wide clinical spectrum. It is challenging to make a definite diagnosis because there is no pathognomic laboratory test to diagnose Behçet's disease. The diagnosis is based on variable group of clinical manifestations. Many new diagnostic/classification criteria have been developed through the years.International Study Group (ISG) Criteria and the International Criteria for Behçet's Disease (ICBD) are the most commonly acceptable criteria for the diagnosis of BD. However, due to the broad clinical spectrum of Behçet's disease, there will always be Behçet's patients who do not complete the criteria. Therefore, the experience of the physician and evaluation of the findings with a good clinical anamnesis is of great importance in the diagnosis.
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