Ophthalmic Hyperguide. Section: Oculoplastics

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Mark R. Levine, MD · Amarpreet Singh, MD · Marc R. Criden, MD

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	Slide 1. Merkel cell carcinoma presenting as a deeply violaceous lower lid nodule.
	Slide 2. Lesion of the left upper lobe showing the characteristic telangiectases seen in MCC.
	Slide 3. Patient who presented with an ulcerated lesion with rolled edges in MCC. The patient was initially diagnosed with basal cell carcinoma.
	Slide 4. Patient who presented with an ulcerated lesion with rolled edges in MCC. The patient was initially diagnosed with basal cell carcinoma.
	Slide 5. Patient who presented with MCC and was initially diagnosed with recurrent chronic chalazion.
	Slide 6. Histopathology showing trabecular MCC with a growth pattern of polygonal and round cells with abundant cytoplasm.
	Slide 7. Histopathology of intermediate MCC with less abundant cytoplasm than trabecular MCC.
	Slide 8. EM transmission of MCC. The cytoplasmic neurosecretory granules (indicated by arrows) are 80 nm to 120 nm.