Seborrheic Keratoses is a type of benign skin tumour that develops from cells in the outermost layer of the skin. This means that it does not pose a risk of cancer. In the same way, as liver spots become more common with age, seborrheic keratoses are also more common in older adults.
The tumours, which are also known as lesions, can have a variety of colours, ranging from light brown to dark black. They can be round or oval in shape, have the sensation of being level or slightly raised, similar to the scab that forms on a wound that is healing, and range in size from extremely small to more than 2.5 centimetres wide. They frequently occur in tandem with a variety of other skin disorders, the most common of which is basal cell carcinoma. Basal cell carcinoma and seborrheic keratosis occur at the same site on the skin very infrequently. During the clinical examination, both warts and melanoma will be on the list of possible diagnoses. Because seborrheic keratoses affect just the uppermost layers of the epidermis, people frequently comment that they seem like they were “pasted on.” Because of their resemblance to warts, some doctors refer to seborrheic keratoses as “seborrheic warts.” However, the name “warts” technically refers to lesions that are caused by the human papillomavirus. Seborrheic keratoses are not warts.
The LeserTrlat sign is identified by the presence of many seborrheic keratoses on the dorsum of a patient.
This video captures all the key facts of Seborrheic Keratosis.
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