Acral Extragenital Lichen Sclerosus and Its Dermoscopic Findings.

Lichen sclerosus (LS) is a chronic inflammatory disorder that predominantly affects the genital region of postmenopausal women, often resulting in significant morbidity due to pruritus and pain. Extragenital manifestations are rare and can present a diagnostic challenge. We report a case of a 65-year-old female presenting with white papules and plaques, some with a cribriform appearance, in an acral distribution.

Acute-on-Chronic Liver Failure Triggered by Cutaneous Loxoscelism.

Acute-on-chronic liver failure is a syndrome associated with a high short-term mortality rate. Severe systemic inflammation and single- and multiple-organ failure are a hallmark of this syndrome, with pro-inflammatory precipitating events occurring in the liver or extrahepatic regions. We report a case of a 69-year-old man with a previous diagnosis of alcohol-induced liver cirrhosis who presented with a poorly defined, erythematous-purplish, and edematous plaque with multiple hemorrhagic blisters over the left leg, one day after receiving a spider bite.

Haplotypes of [-794(CATT) /-173G>C] MIF gene polymorphisms and its soluble levels in cutaneous squamous cell carcinoma in western Mexican population.

Background: Some cytokines are strongly implicated in the development of squamous cell carcinoma (SCC) such as the Macrophage migration inhibitory factor (MIF). The haplotype -794 (CATT) /-173G>C in MIF gene polymorphisms has been associated with some types of cancer. The aim of this study is to establish the possible association between the presence of this haplotype in the MIF gene and its subsequent soluble levels with the susceptibility of SCC in western Mexican population.

Disseminated mucocutaneous trichosporonosis in a patient with histiocytic sarcoma.

Trichosporon asahii is the causal agent of trichosporonosis. Patients with immunosuppression or hematological malignancies are at higher risk of infection. Skin and mucosal involvement appear as fast-growing papulonodular lesions and necrotic ulcers.

Aquagenic urticaria: Water, friend, or foe?

There are <100 reported cases of aquagenic urticaria. Although most are sporadic, several diseases have been associated. Diagnosis is based on provocation tests.

[Simultaneous bilateral lymphangitic sporotrichosis].

Background: Sporotrichosis is the most frequent subcutaneous mycoses in Jalisco, Mexico. The forms of transmission described in the literature are from bites of different animals and injuries due to utensils.

Aims: To present an unusual case with bilateral and lymphangitic cutaneous lesions in the upper limbs caused by a pocket gopher bite (Geomys bursarius).

[Tinea capitis in an adult. Case report].

A tinea capitis and tinea faciei case in an elderly female patient with diabetes mellitus type 2 is presented. Her dermatological illness began on her face and later disseminated to her scalp. She received multiple medications which aggravated her condition.