원저 : 이소갑상선 19예의 신티그라피 소견 ( Scintigraphic Findings of Nineteen Cases of Ectopic Thyroid ) () |
Author |
조인호(In Ho Cho),윤현대(Hyun Dae Yoon),원규장(Kyu Chang Won),이찬우(Chan Woo Lee),이형우(Hyoung Woo Lee),이현우(Hyun Woo Lee),이재태(Jae Tae Lee),이규보(Kyu Bo Lee), |
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Affiliation |
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Abstract |
Abnomalities in the embryologic development and
migration of the thyroid gland can result in ectopic
thyroid tissue, which may occur on the midline in any
position from the base of the tongue to the
mediastinum. Although ectopic thyroid may be
asymptomatic, local obstructive, hemorrhagic or other
complication may occur. Radinuclide thyroid scan is
confirmatory when the diagnosis is suspected.
Hypothyroidism is common in lingual thyroid, and
thyroid supplementation is generally required. In order
to evaluate the features of ectopic thyroid, we
investigated the scintigraphic findings, thyroid
function test and clinical symptoms of 19 patients with
ectopic thyroid. 1) The frequency of ectopic thyroid
was about 5. 3 times more common in female than in
male. Then patients were mostly below 30 years old
(79%). 2) The frequency of location of ectopic thyroid
were as follows: 10 cases in the tongue base, 1 case in
suprahyoid, 5 cases in infrahyoid and 3 cases over 2
areas. 3) The thyroid function test was done in 16
cases of the ectopic thyroid patients. The
hypothyroidism was detected in 7 cases, subclinical
hypothyroidism in 4 cases and normal thyroid function
in 5 cases. 4) The rate of hypothyroidism is 90% in the
lingual thyroid and 33% in the others. The thyroid
dysfunction was related with the location of the
ectopic thyroid (p〈0.05). 5) The clinical
manifestations include a mass in the tongue base, the
foreignbody sensation of a throat and a swallowing
difficulty in lingual thyroid. The palpable mass was
the chief complaint in the others. 6) We prescribed the
thyroid hormone to 10 cases with hypothyroidism. The
ectope thyroid was removed in 2 cases with normal
thyroid function. The rest is following up through OPD.
We must consider the possibility of the ectopic thyroid
and take the thyroid scan when the patient has a amass
in the tongue base, the sublingual and the prelaryngeal
area. Then we have to check the thyroid function and
follow up when the ectopic thyroid is diagnosed,
because the patient with normal thyroid function can
result in the hypothyroidism. Except these, we must
mind of the possibility of occurence of the cancer in
the ectopic thyroid tissue. |
Keyword |
Ectopic thyroid, Thyroid scan, Hypothyroidism |
Full text Article |
28501300.pdf
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