Imaging for Dermatologists

The talk presents an overview of imaging techniques relevant to dermatologists, emphasizing their applications in diagnosing skin conditions, particularly tumors. The speaker shares insights gained from their experience with a radiologist brother and concentrates on three key areas: imaging modalities, the role of imaging in benign subcutaneous lesions, and imaging for high-risk tumors. CT scans with contrast are highlighted as the primary choice for head and neck malignancies due to their efficiency and ability to assess bone involvement and lymph node metastasis. PET CT is discussed for detecting hypermetabolic tumors, but its nonspecific nature limits its use for slow-growing tumors. MRI is noted as a fallback for lymph nodes and specific conditions where CT is inadequate. The speaker underscores the critical need for precise imaging requests to enhance diagnostic accuracy, especially in squamous cell carcinoma (SCC), Merkel cell carcinoma, and melanoma. The discussion also covers imaging in relation to renal function, allergies to contrast, and the importance of understanding the patient's history in interpreting results. Lastly, the potential for imaging to affect management decisions in high-risk cases is addressed, particularly concerning adjuvant therapy based on imaging findings.