Երեքնուկանման կառույցները` որպես դերմատոսկոպիական յուրօրինակ ախտանիշ

Rosettes, also known as cloverleaf structures, are a unique dermatoscopic phenomenon that can only be detected by polarized dermatoscopy (conoscopic interference). Rosettes consist of four whitish “petals” separated from each other by a cross, resembling a Maltese cross. Rosettes are most commonly observed in actinic keratosis and squamous cell carcinoma. However, they are not specific and can also be seen in molluscum contagiosum, rosacea, discoid lupus erythematosus, basal cell carcinoma, dermatofibroma, lichen planus, and other diseases.