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KMID : 0061119820100000044
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Bulletin of the Clinical Research Institute
1982 Volume.10 No. 0 p.44 ~ p.44
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A Scintingraphic Study of the Pyramidal Lobe of the Thyroid
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Lee, Myung-Hee
Kim, Ok-Hwa/Lee, Han, -Jin/Lee, Seong-Yong/Bahk, Y9ong-Whee
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Abstract
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The authors reviewed 200 consecutive cases of thyroid scintigrams in order to seek the incidence and morphological characteristics of pyramidal lobe (PL). The results were as follows.
1) The incidence of PL was 104 (52%) out of 200 cases, and PL was located in the left lobe of the gland in 50 (48.1%), in the isthmus portion in 33 (31.7%) and in the right lobe in 21 (20%).
2) PL was rod shaped in 57 cases (54.8%), triangular or cone shaped in 42 (40.0%) and dumbbell or club shaped in 5 (4.8%).
3) The length of PL was 1 to 2 ㎝ in 44 cases (42.3%), 2 to 3 ㎝ in 36 (34.6%) and less than 1 ㎝ in 11(10.4%) and more than 3 ㎝ in 13 (12.5%). The width of PL was 0.5 to 1 ㎝ in 78 cases (75%), less than 0.5 ㎝ in 12 (11.5%) and more than 1 ㎝ in 14 (13.5%).
4) To evaluate the histopathologic relationship between the thyroid gland proper and PL, we measured the length of PL in 54 cases of normal group and in 211 cases with diffuse goiter, retrospectively.
The mean and standard deviation in the former was 1.64±0.66 cm and in the latter 1.77± 0.67 ㎝.
The difference between: the normal and goitrous group was not significant statistically suggesting that the biological behaviour of `PL is not probably parallel to that of the thyroid gland proper.
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KEYWORD
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