, is the suffering commonest of the gland
and as large as consists of the increase the gland
. This increase can be in
single part forming
nodule or like
, that involves all the gland.
is located in the base of the neck on the trachea and its
is the one to produce hormones T4 and T3, that regulate the metabolism and many other processes of the body, reason why its good operation is necessary for the life.
form of butterfly with two lobes, left and the right that is united by one more
narrower strip or isthmus.
In order to work it needs the stimulating hormone of the
or TSH, that comes from the gland hipófisis or pituitaria, that is located in the base of the skull and that exerts in total control on her. The increase in the levels of the TSH, indicates to the gland
that must extract iodide of the sanguineous torrent, turned
and to produce hormones known like tiroxina and triyodotironina.
is only organ of organism that uses
and although only it needs it in very small amounts, to produce hormones T3 and T4, his
can to cause
, since the gland enlarges to be able to increase its capacity to extract and to process the
, that we can acquire it through the product consumption of sea, yodatada salt and bread added with
is more frequent in women than in men and
greater incidence to greater age, nevertheless in some cases can appear during the
or adolescence, when it occurs to the
of accelerated growth and
changes, the increase of size of the neck in these cases, is proportional to the one of the rest of its body, reason why it is known him like "goiter of the adolescence".
Not all the apparent cases of "bocios", are developed by the alteration in tiroideas hormones. Often they must to the formation of cysts, quísticos, hemorrágicos or solid nodules that form by the proliferation of the tiroideo weave or to an increase of the formation of
colloid that is between the tiroideas cells that they are grouped forming follicles.
Depending on its characteristics, there are several types of
appears generally when the gland
is incapable to produce and to satisfy the necessities with the hormone
, which causes that this one enlarges to compensate the situation, with which generally correct the slight deficiencies of the tiroidea hormone.
can be endemic, when it appears in several people of
community who live in places with deficient grounds in
and far from the coasts or sporadic, whose cause is not known although
relation with the medicine use exists like
or the aminoglutetimida one.
it is not bound to the
and depending on its characteristics, can be diffuse, when there is
increase of the gland or to nodular, when focal increases take place. Also, depending on the capacity of hormonal production, it can be classified in: normofuncionante, when the tiroideas hormones take place of
form; hipofuncionante, when the tiroideas hormones are low or hiperfuncionante, when the hormone production very is elevated.
The content of this note is informative and it does not replace the medical diagnosis, reason why we do not become people in
on its use.