Metastatic Merkel Cell Carcinoma Masquerading as Multiple Immune-Related Adverse Events

Figure 5

(a) Truncal eruption of pink macules and thin papules with minimal overlying scale coalescing centrally at the upper back and chest, with extension to the rest of torso and upper extremities, hospital day 4. (b) Biopsy revealed an interface dermatitis with dyskeratosis and superficial perivascular lymphocytic infiltrate. (c) Primary lesion to the left cheek showing significant recession on clinical examination after bimodality therapy, hospital day 4.