what does merkel cell look like
Merkel cells are small, oval‑shaped skin cells that sit at the very bottom of the epidermis (the stratum basale), usually near nerve endings.
What a normal Merkel cell looks like
Under a microscope, a Merkel cell typically appears as:
- A clear or pale , oval‑shaped cell about 10 micrometers in diameter.
- Located in the lower epidermis or at the dermo‑epidermal junction, often in touch‑sensitive areas like fingertips.
- Closely associated with a sensory nerve ending, forming a Merkel cell–neurite complex (a “touch receptor” unit).
Electron‑microscopy images show Merkel cells with dense‑core cytoplasmic granules , reflecting their neuroendocrine character.
How they differ from Merkel cell carcinoma
When these cells turn cancerous (Merkel cell carcinoma), the tissue looks very different:
- Tumors form firm, shiny nodules that are flesh‑colored, red, blue, or violaceous (purple‑red).
- Under the microscope, MCC shows small, round or oval tumor cells with scant cytoplasm , “salt‑and‑pepper” chromatin, and many mitoses.
If you’re asking because of a skin lesion, any new, fast‑growing, or unusual bump should be checked by a dermatologist , since Merkel cell carcinoma is rare but aggressive.
Information gathered from public forums or data available on the internet and portrayed here.