General Q and A Forum - Spot turned into a lump & becoming bigger: Atheroma or cyst?

According to your description that a “lump” left after some “spot” on the torso healed, you could be experiencing some type of atheroma. An atheroma is a retention cyst that originates from the sebaceal gland in the skin. The sebaceal gland normally excretes its sebum through a duct into the hair follicle. If that duct becomes obstructed, sebum collects inside the gland. This type of retention can be transformed into a cyst, or "atheroma". An athaeroma can become inflamed from time to time. Infections can heal spontaneously or with the use of local antibiotics... but cyst can be cured only surgically by removing the whole cyst’s membrane. If some small part of the cyst’s membrane is left inside the skin, the atheroma will reappear. You can consult a plastic surgeon for a consultation, diagnosis, and treatment plan.

DISCLAIMER: "Ask a Doctor" Questions are answered by Dr. Nikola Gjuzelov, General Practitioner. Dr. Gjuzelov practices medicine for the general public and is affiliated with the Republic of Macedonia Public Health Institution. For more information about Dr. Gjuzelov or other eHealthForum.com medical experts, please visit our About Us page. You may also visit our General Q and A Forum, for moderated patient to patient support and information.

The material presented in the eHealth Forum Discussion Forums and Ask A Doctor is in no way intended to replace professional medical care or attention by a qualified licensed medical professional. eHealth Forum and eHealth Forum's Ask A Doctor advises all users with health problems and concerns to consult their personal doctors. Furthermore, if you have any questions or concerns about your condition, you must consult your qualified licenseced medical professional before starting any treatment.

The materials in the eHealth Forum Discussion Forums and Ask A Doctor cannot and should not be used as a basis for diagnosis or choice of treatment. To the fullest extent possible, eHealth Forum and eHealth Forum's Ask A Doctor expressly excludes all liability in respect of the information and opinions contained in the Discussion Forums and Ask A Doctor, this Web site, or any sites linked to this Web site.