Possible Keratoacanthoma: Why Removal Can Also Clarify the Diagnosis

If the dermatologist uses the words “possible keratoacanthoma” and recommends removal, ask what the procedure is intended to establish. Keep the diagnosis under discussion separate from the final tissue result when you make notes.

Appearance can leave uncertainty

BAD explains that a keratoacanthoma may initially look like a small pimple or boil and then grow rapidly. If the diagnosis is unclear, the dermatologist often removes the growth for microscopic examination to confirm that it is not squamous cell carcinoma.¹

Tell the clinician when you first noticed the lesion and how it has changed. Ask which findings support the possible diagnosis and what remains uncertain. Do not try to settle that uncertainty by matching the lesion to an online photograph.

Removal can have a diagnostic purpose

Ask whether the planned procedure is intended to provide a tissue diagnosis, treat the lesion or do both. Request an explanation of what will be removed and how the team will use the result.

Before leaving, confirm who will discuss the microscopic findings, how you will be contacted and what to do if you have not heard by the agreed date. Keep that conversation separate from any appointment for stitches or wound care.

A general description does not settle your treatment plan

BAD notes that a keratoacanthoma can shrink and disappear, leaving a scar. That possibility does not remove the need for expert assessment when it resembles a skin cancer.¹

Follow the dermatologist’s assessment plan rather than waiting for the growth to shrink on its own. If you are unsure why treatment is recommended, ask for the explanation before changing or delaying an appointment.

Discuss the procedure actually proposed

BAD describes scraping and cautery or complete surgical excision as treatment options. A lesion can recur if its base is not removed completely; recurrence is less likely after complete removal.¹

Ask which approach is recommended for your lesion and why. Discuss the expected scar, personal aftercare and which changes should prompt earlier contact. Request the instructions and service contact details in writing.

Keep the final result with the follow-up plan. If it changes the initial impression, ask the clinician to explain what that means for the next step.

Skin, Head to Toe includes a visit script. Use it to organize questions for the dermatologist alongside the clinic’s assessment, result and care instructions. See the book.