Metastatic SMARCB1 Deficient Skin Carcinoma With Neuroendocrine Differentiation in the Parotid Glands Clinically Mimicking Primary Salivary Gland Malignancy: Unusual Case With Diagnostic Pitfalls

We present a unique case of metastatic SMARCB1-deficient cutaneous carcinoma in the parotid glands with both squamous and neuroendocrine differentiation. This entity should be considered in any difficult-to-classify skin carcinoma, as timely definitive diagnosis will be mandatory for optimizing therapy.