mielomes

Mielomes, also known as mielomas or mielomas cutáneos, refer to a group of rare, benign skin tumors that arise from melanocytes, the cells responsible for producing melanin, the pigment that gives skin its color. These growths are typically slow-growing and non-cancerous, though they can sometimes be mistaken for more serious conditions due to their appearance.

Mielomes are most commonly found in individuals with a history of chronic sun exposure, particularly in older adults. They often present as small, dome-shaped, flesh-colored or slightly pigmented papules or nodules, usually on sun-exposed areas such as the face, neck, or arms. While they may appear similar to seborrheic keratoses or basal cell carcinomas, their benign nature and distinct clinical features help differentiate them.

Histologically, mielomes exhibit characteristic features such as a lobular arrangement of melanocytes, a lack of significant atypia, and a well-defined border. They do not invade deeper tissue layers, which further supports their benign classification. Diagnosis typically involves a skin biopsy followed by microscopic examination by a dermatopathologist.

Treatment for mielomes is generally not required unless the lesions are cosmetically bothersome or cause discomfort. In such cases, options may include surgical excision, cryotherapy, or laser therapy. Due to their slow progression, regular monitoring is often sufficient to ensure they do not undergo malignant transformation, though this is exceedingly rare.

While mielomes are not considered precancerous, their presence may warrant increased vigilance for other skin conditions, particularly in individuals with a history of sun damage. Early detection and proper diagnosis are key to managing these benign growths effectively.