A possible pitfall of Mohs surgery in collision tumor diagnosis: A case of a squamous cell carcinoma of the scalp overlying a metastatic breast lesion of the skull

• Annie J. Tsay, MPH,
• Allison R. Paine, MD,
• Jessyka G. Lighthall, MD,
• Karen Y. Choi, MD,
• Jeanette Hebel, MD,
• Alexandra Flamm, MD

Affiliations

Annie J. Tsay, MPH

Penn State College of Medicine, Hershey, Pennsylvania

Allison R. Paine, MD

Department of Dermatology, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania

Jessyka G. Lighthall, MD

Section of Facial Plastic and Reconstructive Surgery, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania

Karen Y. Choi, MD

Division of Otolaryngology-Head and Neck Surgery, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania

Jeanette Hebel, MD

Dermatology Associates of Lancaster, Lancaster, Pennsylvania

Alexandra Flamm, MD

Department of Dermatology, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania; Correspondence to: Alexandra Flamm, MD, Assistant Professor of Dermatology and Pathology, Penn State Milton S. Hershey Medical Center, 500 University Dr, Mail Code HU14, Hershey, PA, 17033.