Erbium Laser for Skin Surgery: A Single-Center Twenty-Five Years’ Experience

(1) Introduction: The Erbium laser is a very versatile laser system used in dermatology. Its ability to be almost selectively absorbed by water makes it a perfect device for managing various cutaneous skin conditions. (2) Methods: In this paper, we report our twenty-five years’ experience with the Erbium laser. More than three thousand patients were treated for common skin disorders such as flat warts, seborrheic keratosis, xanthelasmas, and scars. (3) Results: A complete response was observed in 89.6%, without significant side effects. Local anesthesia was used in only a tiny percentage of patients. (4) Conclusions: This study confirms that the Erbium laser is a valuable and flexible procedure for laser surgery with excellent safety and short healing times.

Skin-limited Langerhans cell histiocytosis in an adult: a case report

Langerhans cell histiocytosis (LCH) is an idiopathic group of disorders characterized histologically by proliferation and infiltration of tissue by Langerhans cell-type histiocytes. This disease can affect various organs. Patients with single system lesion should be followed carefully. Detection of somatic BRAF-V600E mutation in circulating blood cells or in lesional biopsies has been associated with high-risk clinical characteristics. A 38-year old male presented to our Dermatology Centre with a 3 months history of small nodule on his right leg skin. Surgery to remove the lesion was performed. The diagnosis of skin-limited Langerhans cell histiocytosis was established. Due to possible systemic spread the patient was referred to a haematologist for further evaluation. Full body CT scan did not show any infiltrates in other organs. Bone marrow aspirate and biopsy was performed, no Langerhans cells were detected. Sometimes skin lesions may represent the most clinically evident manifestation of potentially life-threatening multisystem disease.

PD-1 and beyond to Activate T Cells in Cutaneous Squamous Cell Cancers: The Case for 4-1BB and VISTA Antibodies in Combination Therapy

Non-melanoma skin cancers (NMSC) have a higher incidence than all other cancers combined with cutaneous squamous cell carcinoma (cSCC), capable of metastasis, representing approximately 20% of NMSCs. Given the accessibility of the skin, surgery is frequently employed to treat localized disease, although certain localities, the delineation of clear margins, frequency and recurrence of tumors can make these cancers inoperable in a subset of patients. Other treatment modalities, including cryotherapy, are commonly used for individual lesions, with varying success. Immunotherapy, particularly with checkpoint antibodies, is increasingly a promising therapeutic approach in many cancers, offering the potential advantage of immune memory for protection against lesion recurrence. This review addresses a role for PD-1, 4-1BB and VISTA checkpoint antibodies as monotherapies, or in combination as a therapeutic treatment for both early and late-stage cSCC.