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  • Author: Sandra L. Wong x
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Michael S. Sabel and Sandra L. Wong

Edited by Kerrin G. Robinson

When making a new diagnosis of melanoma, clinicians often obtain imaging studies to rule out clinically occult distant disease. These studies range from inexpensive tests, such as chest radiographs, to more expensive studies, such as PET/CT. The impetus for ordering these studies is usually the desire to identify potentially resectable distant disease, avoid surgery when curative resection is not possible, and assuage patient anxiety by showing that no evidence of distant disease is present. However, some detrimental aspects to these studies are less apparent, including cost and potential for false-positive findings. Although routine use seems reasonable, the true benefit of these studies depends on the probability of clinically occult disease being present, likelihood that disease will be detected with the available technology, and impact of earlier detection on outcome. Contrary to current practice patterns, available evidence suggests that preoperative imaging studies are associated with significant costs and minimal benefit in most patients with melanoma. This article reviews available literature on the role of pretreatment imaging in patients with newly diagnosed cutaneous melanoma.

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Jennifer L. Schwartz, Sandra L. Wong, Scott A. McLean, James A. Hayman, Christopher D. Lao, Jeffrey H. Kozlow, Kelly M. Malloy, Carol R. Bradford, Marcus L. Frohm, Douglas R. Fullen, Lori Lowe and Christopher K. Bichakjian

Merkel cell carcinoma (MCC) is a rare malignancy of the skin, and prospective randomized clinical studies on management and treatment are very limited. The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for MCC provide up-to-date, best evidence-based, and consensus-driven management pathways with the purpose of providing best care and outcomes. Multidisciplinary management with consensus treatment recommendations to individualize patient care within the framework of these guidelines is optimal. The University of Michigan multidisciplinary MCC program uses NCCN Guidelines in the management and treatment of its patients. This article discusses 4 patient presentations to highlight the implementation of the NCCN Guidelines for MCC at the University of Michigan.

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Christopher K. Bichakjian, Thomas Olencki, Murad Alam, James S. Andersen, Daniel Berg, Glen M. Bowen, Richard T. Cheney, Gregory A. Daniels, L. Frank Glass, Roy C. Grekin, Kenneth Grossman, Alan L. Ho, Karl D. Lewis, Daniel D. Lydiatt, William H. Morrison, Kishwer S. Nehal, Kelly C. Nelson, Paul Nghiem, Clifford S. Perlis, Ashok R. Shaha, Wade L. Thorstad, Malika Tuli, Marshall M. Urist, Timothy S. Wang, Andrew E. Werchniak, Sandra L. Wong, John A. Zic, Nicole McMillian, Karin Hoffman and Maria Ho

Dermatofibrosarcoma protuberans (DFSP) is an uncommon soft tissue tumor characterized by a relatively high risk of local recurrence and low risk of metastasis. The NCCN Guidelines for DFSP provide multidisciplinary recommendations on the management of patients with this rare disease. These NCCN Guidelines Insights highlight the addition of the Principles of Pathology section, which provides recommendations on the pathologic assessment of DFSP. Because DFSP can mimic other lesions, immunohistochemical studies are often required to establish diagnosis. Cytogenetic testing for the characteristic translocation t(17;22)(q22;q13) can also be valuable in the differential diagnosis of DFSP with other histologically similar tumors.

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Christopher K. Bichakjian, Thomas Olencki, Sumaira Z. Aasi, Murad Alam, James S. Andersen, Daniel Berg, Glen M. Bowen, Richard T. Cheney, Gregory A. Daniels, L. Frank Glass, Roy C. Grekin, Kenneth Grossman, Susan A. Higgins, Alan L. Ho, Karl D. Lewis, Daniel D. Lydiatt, Kishwer S. Nehal, Paul Nghiem, Elise A. Olsen, Chrysalyne D. Schmults, Aleksandar Sekulic, Ashok R. Shaha, Wade L. Thorstad, Malika Tuli, Marshall M. Urist, Timothy S. Wang, Sandra L. Wong, John A. Zic, Karin G. Hoffmann and Anita Engh

Basal cell carcinoma (BCC) of the skin is the most common cancer, with a higher incidence than all other malignancies combined. Although it is rare to metastasize, patients with multiple or frequently recurring BCC can suffer substantial comorbidity and be difficult to manage. Assessment of risk is a key element of management needed to inform treatment selection. The overall management of BCC primarily consists of surgical approaches, with radiation therapy as an alternate or adjuvant option. Many superficial therapies for BCC have been explored and continue to be developed, including topicals, cryosurgery, and photodynamic therapy. Two hedgehog pathway inhibitors were recently approved by the FDA for systemic treatment of advanced and metastatic BCC, and others are in development. The NCCN Guidelines for Basal Cell Skin Cancer, published in full herein, include recommendations for selecting among the various surgical approaches based on patient-, lesion-, and disease-specific factors, as well as guidance on when to use radiation therapy, superficial therapies, and hedgehog pathway inhibitors.

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Christopher K. Bichakjian, Thomas Olencki, Murad Alam, James S. Andersen, Daniel Berg, Glen M. Bowen, Richard T. Cheney, Gregory A. Daniels, L. Frank Glass, Roy C. Grekin, Kenneth Grossman, Alan L. Ho, Karl D. Lewis, Daniel D. Lydiatt, William H. Morrison, Kishwer S. Nehal, Kelly C. Nelson, Paul Nghiem, Clifford S. Perlis, Ashok R. Shaha, Wade L. Thorstad, Malika Tuli, Marshall M. Urist, Timothy S. Wang, Andrew E. Werchniak, Sandra L. Wong, John A. Zic, Karin G. Hoffmann, Nicole R. McMillian and Maria Ho

Merkel cell carcinoma is a rare, aggressive cutaneous tumor that combines the local recurrence rates of infiltrative nonmelanoma skin cancer with the regional and distant metastatic rates of thick melanoma. The NCCN Guidelines for Merkel Cell Carcinoma provide recommendations on the diagnosis and management of this aggressive disease based on clinical evidence and expert consensus. This version includes revisions regarding the use of PET/CT imaging and the addition of a new section on the principles of pathology to provide guidance on the analysis, interpretation, and reporting of pathology results.