D22.6

Clinical Causes: Genetic predisposition: family history may increase the likelihood of developing moles. Sun exposure: UV radiation can stimulate melanocytes, leading to the formation of nevi. Hormonal changes: puberty, pregnancy, and hormonal therapies can influence their development. Age: moles often appear during childhood and adolescence but can develop at any age. Skin type: individuals with lighter skin tones are more prone to develop melanocytic nevi.

Key Symptoms: Small, flat or raised skin lesions Color varies from brown to black, sometimes skin-colored or pink Round or oval shape with well-defined borders Potential change in size, shape, or color over time

Diagnosis Path: Diagnosis primarily involves a visual skin examination by a healthcare professional. They assess the size, color, shape, and border clarity of the nevi. If any irregularities or suspicious features are noted, additional procedures such as dermoscopy, a non-invasive imaging technique, may be employed. In some cases, a skin biopsy might be performed to determine if the lesion is benign or malignant, especially if changes are observed over time or if the mole exhibits asymmetry, irregular borders, multiple colors, large diameter, or evolving features.

Treatment Protocols: Most melanocytic nevi of the upper limb do not require treatment unless they cause discomfort, cosmetic concerns, or show signs of malignancy. Management options include: - Observation: Regular monitoring for changes in appearance. - Surgical removal: excision or shave removal if the mole is suspicious, symptomatic, or bothersome. - Laboratory analysis: biopsy specimens may be examined microscopically to rule out melanoma or other skin conditions. Preventative measures include protecting the skin from excessive sun exposure, using broad-spectrum sunscreens, and avoiding tanning beds. Any noticeable changes in existing moles or new skin growths should be evaluated promptly by a healthcare professional.