Before entering fully into the meaning of the term granuloma, it is necessary to know its etymological origin. In this case, we can point out that it is a word that derives from Latin. It is exactly the result of the sum of two lexical components of that language:
-The noun “granum”, which can be translated as “grain”.
-The suffix “-oma”, which is used to indicate “mass” or “tumor”.

It is called granuloma to one small swelling of a tissue. It is a mass formed by the agglomeration of immune cells, generated when the immune system seeks to isolate a foreign element that it could not eliminate.

GranulomaGranulomas, in this way, can appear in the presence of a mushroom or of a bacterium, for instance. Various types of infections can cause a granuloma to develop.

The cells that form granulomas are known as macrophagesas they can ingest damaged cells, bacteria and other elements through a process called phagocytosis. When phagocytosis cannot take place, macrophages clump together and form a ball-like structure – the granuloma.

The leprosy, the histoplasmosis and the tuberculosis are some of the infectious diseases that cause the appearance of granulomas. There are also diseases that are not infectious but are still characterized by granulomas, such as Crohn’s disease and the sarcoidosis.

There is talk of foreign body granuloma when there is a foreign material that is surrounded by cells. This type of granuloma can appear from a trauma, the use of a cosmetic product or a post-surgical process, among other reasons. An insect bite, tattoo, and suture are among the causes of foreign body granulomas.

In the same way, we cannot ignore the existence of what is known as a pyogenic granuloma, which can be defined as a type of benign vascular tumor that, although it can occur anywhere in the body, it is common for it to be present. inside the capillaries and even on the mucous membranes. Furthermore, it is also known by the name of lobular capillary hemangioma.

Likewise, it should be noted that the origin of this granuloma is usually in the intake of some medications as well as in trauma and that it is very frequent in minors and young people. To all this, it must be added that it usually appears in the form of a high, bleeding lesion of an intense red color.

A granuloma annulareFinally, it appears on the feet or hands for unknown reasons, although it is estimated that it could develop as reaction certain medications or minor skin lesions. This condition can be itchy, although it does not cause major discomfort.

It is also established that among the causes of this so-called granuloma annulare may be certain infections, such as hepatitis, as well as the bites of some animals and even excessive exposure to the sun or having undergone a tuberculin skin test , for instance.