LAUSR

In this edition ofDermatologic Surgery, Dr. Clark and colleagues evaluate the utility of routine imaging in squamous cell carcinoma of the nail unit. Along with the skin cancer epidemic in general, malignant tumors of the nail unit are a growing concern in our specialty. Squamous cell carcinomas of the nail unit are a particular challenge because their presentations are heterogenous and may mimic other benign entities. Furthermore, some may choose initial local treatment with close follow-up before an invasive procedure such as a diagnostic biopsy. Squamous cell carcinoma of the nail unit preferentially affects middle-aged male patients with a particular predilection for the thumb. Patients present with pain, disruption of the nail plate, hyperkeratosis, periungual or subungual mass, or paronychia. Histopathologic diagnosis is paramount in diagnosing squamous cell carcinoma of the nail unit.