Dermoscopy: Learning From Easy and Difficult Cases

In a presentation on dermoscopy, a professor from the University of Buenos Aires discussed various cases of skin lesions, including nodular visions, facial pigmented lesions, red faces, and papules/plaques. The professor began with nodular lesions, examining two cases—one in a 45-year-old woman with rapid growth and another in a 40-year-old man—resulting in diagnoses of nodular melanoma and pyogenic granuloma. He advised against follow-up for uncertain lesions and emphasized removal if benign. The next section focused on facial pigmented lesions, presenting cases with irregular pigmentation, and underscoring the importance of identifying solar lentigines and keratoses via dermoscopy. The discussion of 'red faces' highlighted the need to rule out internal diseases and check for vascular patterns characteristic of conditions like rosacea and demodicosis. Lastly, he addressed papules and plaques, showcasing two cases that illustrated key dermoscopic signs, leading to a diagnosis of lichen planus based on specific findings. The presentation reinforced the utility of dermoscopy in dermatological diagnoses and encouraged practitioners to be vigilant when assessing skin lesions.