This image is another video thumbnail featuring dermatologist Dr. Sandra Lee (Dr. Pimple Popper).
The image shows a large lesion on a patient's scalp. This is most likely a pilar cyst or a large epidermoid cyst with a prominent central punctum.
Analysis of the Lesion:
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Location: The presence of hair indicates the lesion is on the scalp, a very common location for pilar cysts (which originate from hair follicles).
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Central Punctum: The large, dark, and crusty center is a dilated pore (punctum) filled with oxidized keratin (skin protein) and sebum (oil), giving it the appearance of a giant blackhead.
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Cystic Structure: The raised, dome-shaped swelling underneath the dark plug indicates a sac-like structure (a cyst) beneath the skin's surface.
The image likely previews a video where Dr. Lee performs a surgical excision to remove the entire cyst, including its sac wall, to prevent it from recurring. The syringe she is holding is used to inject a local anesthetic to numb the area before the procedure begins.
Disclaimer: This is a medical condition that should only be diagnosed and treated by a qualified healthcare professional. Attempting to remove such a lesion at home can cause severe infection, pain, and permanent scarring.