Blue Nevus and Blue Nevus-like Lesions: Benign and Malignant (Oct 18, 2021 - Oct 17, 2024)
Blue Nevus and Blue Nevus-like Lesions: Benign and Malignant is organized by Opus Medicus, Inc.
Course Dates:
Last Review Date: 18-Oct-2021
Expiration Date: 17-Oct-2024
Description:
Dermal-based melanocytic proliferations with dendritic/spindle cell cytomorphology and melanin production give rise to clinical lesions with a distinctive blue-black hue. The common blue nevus is relatively straightforward histologic diagnosis, however variant lesions such as cellular blue nevi, cellular blue nevi with cytologic atypia, plaque-like blue nevi, neurocristic hamartoma, pigmented epithelioid melanocytoma, and cellular blue nevi with malignant transformation can represent significant diagnostic challenges. These are not common lesions with limited representation of their pathologic features available in published textbooks. This course is designed to elucidate diagnostic and key differentiating features of this series of lesions.
Objectives:
• Develop familiarity with benign common and cellular variants of blue nevi.
• Understand criteria for applying the term "atypical" to cellular blue nevus and need to ensure complete removal of these lesions.
• Learn how to differentiate plaque-type blue nevus, diffuse neurofibroma, pilar neurocristic hamartoma, and desmoplastic melanoma.
• Learn the characteristics of epithelioid blue nevi and pigmented epithelioid melanocytoma.
• Learn the uses of the term "malignant blue nevus", criteria for diagnosis, and differentiation from benign cellular blue nevus.
Topics:
• Background/Tyndall effect
• Common Blue Nevus and Variants
• Dermal Melanocytoses
• Cellular Blue Nevus
• Atypical Cellular Blue Nevus
• Plaque-type Blue Nevus
• Pilar Neurocristic Hamartoma
• Epithelioid Blue Nevus
• Pigmented Epithelioid Melanocytoma
• Malignant Blue Nevus