中毒性多結節性甲状腺腫
WordNet
- of or relating to or caused by a toxin or poison; "suffering from exposure to toxic substances"
- abnormally enlarged thyroid gland; can result from underproduction or overproduction of hormone or from a deficiency of iodine in the diet (同)goitre, struma, thyromegaly
PrepTutorEJDIC
- 毒性の,有毒な / 毒による
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2016/01/11 13:48:58」(JST)
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Toxic multinodular goiter |
Classification and external resources |
Specialty |
Endocrinology |
ICD-10 |
E05.2 |
ICD-9-CM |
242.3 |
DiseasesDB |
13184 |
MedlinePlus |
000317 |
eMedicine |
med/920 |
Toxic multinodular goiter (also known as toxic nodular goiter, toxic nodular struma, or Plummer's disease) is a multinodular goiter associated with a hyperthyroidism.
It is a common cause of hyperthyroidism[1][2] in which there is excess production of thyroid hormones from functionally autonomous thyroid nodules, which do not require stimulation from thyroid stimulating hormone (TSH).[3]
It is the second most common cause of hyperthyroidism (after Graves' disease) in the developed world. In countries where the population is iodine-deficient i.e. the developing world, iodine deficiency is the most common cause of hypothyroidism. (Decreased iodine leads to decreased thyroid hormone.) However, iodine deficiency can cause goitre (thyroid enlargement); within a goitre, nodules can develop. Risk factors for toxic multinodular goiter include individuals over 60 years of age and being female.[4]
Contents
- 1 Signs and symptoms
- 2 Causes
- 3 Treatments
- 4 Related eponym
- 5 References
- 6 External links
Signs and symptoms
Symptoms of toxic multinodular goitre are similar to that of hyperthyroidism, including:[4]
- heat intolerance
- muscle weakness/wasting
- hyperactivity
- fatigue
- tremor
- irritability
- weight loss
- osteoporosis
- increased appetite
- non-painful goitre (swelling of the thyroid gland)
- tachycardia (high heart rate - above 100 beats per minute at rest in adults)
Causes
Sequence of events:[5]
- Iodine deficiency leading to decreased T4 production.
- Induction of thyroid cell hyperplasia due to low levels of T4. This accounts for the multinodular goitre appearance.
- Increased replication predisposes to a risk of mutation in the TSH receptor.
- If the mutated TSH receptor is constitutively active, it would then become 'toxic' and produces excess T3/T4 leading to hyperthyroidism.
Treatments
Toxic multinodular goiter can be treated with antithyroid medications such as propylthiouracil or methimazole, radioactive iodine, or with surgery.[4]
Another treatment option is injection of ethanol into the nodules.[6]
Related eponym
Plummer's disease is named after the American physician Henry Stanley Plummer but refers to a single toxic nodule (adenoma) which may present with the background of a suppressed multinodular goitre.[7]
References
- ^ de Rooij, A; Vandenbroucke, JP; Smit, JW; Stokkel, MP; Dekkers, OM (2009). "Clinical outcomes after estimated versus calculated activity of radioiodine for the treatment of hyperthyroidism: systematic review and meta-analysis.". European Journal of Endocrinology (Bioscientifica) 161 (5): 771–777. doi:10.1530/EJE-09-0286. PMID 19671708.
- ^ Krohn, K; Fuhrer, D; Bayer, Y; Eszlinger, M; Brauer, V; Neumann, S; Paschke, R (2005). "Molecular pathogenesis of euthyroid and toxic multinodular goiter.". Endocrine reviews 26 (4): 504–524. doi:10.1210/er.2004-0005. PMID 15615818.
- ^ Reid, JR; Wheeler, SF (2005). "Hyperthyroidism: diagnosis and treatment.". American family physician 72 (4): 623–630. PMID 16127951.
- ^ a b c A.D.A.M. Medical Encyclopedia (2012). "Toxic nodular goiter". U.S. National Library of Medicine. Retrieved 30 January 2013.
- ^ Toxic Nodular Goiter at eMedicine
- ^ al.], senior editors, J. Larry Jameson, Leslie J. De Groot ; section editors, David de Kretser ... [et (2010). Endocrinology : adult and pediatric (6th ed.). Philadelphia: Saunders/Elsevier. p. Chapter 82. ISBN 9781416055839.
- ^ Plummer's disease eponymously named after Henry Stanley Plummer at Who Named It?
External links
UpToDate Contents
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English Journal
- Cytometric evaluation of intracellular IFN-gamma AND IL-4 levels in thyroid follicular cells from patients with autoimmune thyroid diseases.
- Bossowski A, Harasymczuk J, Moniuszko A, Bossowska A, Hilczer M, Ratomski K.AbstractABSTRACT:
- Thyroid research.Thyroid Res.2011 Sep 23;4(1):13. [Epub ahead of print]
- ABSTRACT:BACKGROUND: In recent few years is underlined that altered balance of pro- and anti-inflammatory cytokines play an important role in the pathogenesis of AITD. The aim of this study was to estimate intracellular INF-gamma and IL-4 levels in thyroid-infiltrating lymphocytes and thyr
- PMID 21943174
- Chorea Associated with Thyrotoxicosis Due to Toxic Multinodular Goiter.
- Masannat Y, Gandhy R, Olajide O, Kheetan R, Yaqub A.Source1 Department of Medicine, Marshall University , Huntington, West Virginia.
- Thyroid : official journal of the American Thyroid Association.Thyroid.2011 Sep 21. [Epub ahead of print]
- PMID 21936672
Japanese Journal
- Two rare TSH receptor amino acid substitutions in toxic thyroid adenomas
- Toxic Multinodular Goiter with Low Radioactive Iodine Uptake
- Short term effects of levothyroxine treatment in thyroid multinodular disease
Related Links
- 16 Sep 2011 ... Autonomous hyperactivity is conferred by somatic mutations of the thyrotropin, or thyroid-stimulating hormone (TSH), receptor in 20-80% of toxic adenomas and some nodules of multinodular goiters. Autonomously functioning ...
Related Pictures
★リンクテーブル★
[★]
- 英
- thyroid gland
- ラ
- glandula thyroidea
- 関
- 甲状腺ホルモン、副甲状腺(上皮小体)
- 喉頭
- 図:N.24(全面の筋),25(全面の筋),70(血管),71(血管)
解剖学
部位
性状
- 成人の正常重量15-25g、女性の方が少し重い。妊娠中や性周期で重量が変化する。分泌期初期(early secretary phase排卵後2-5日目)には50%も重量が増加する。
大きさ
- よくわかる甲状腺疾患のすべて 永井書店 (2004/01) ISBN 481591673X
- 単位はmm?
|
n
|
峡部
|
横断厚
|
横径
|
縦経(右)
|
縦経(左)
|
男性
|
34
|
1.8±0.6
|
18±3.0
|
48±4.8
|
49±3.7
|
49±3.8
|
女性
|
16
|
1.3±0.8
|
16±2.2
|
46±3.6
|
45±6.0
|
46±3.0
|
血管
動脈
静脈
神経
- 声帯を支配する神経が甲状腺の裏側を通過 N.71
画像
- (高エコー)筋肉>甲状腺>気道(低エコー) ← 要確認
組織学
- 成人甲状腺全体の0.1%を占める
- カルシトニン産生細胞、HEでは判別困難。
- 銀染色(Glimerius)、免疫組織化学(chromogranin A、synaprophysin, carcitoninなど)により明らかとなる。
- 電顕では、electron dense な顆粒を有する(神経内分泌顆粒)。
機能
発生
神経支配
- 上頚部交感神経節、中頚部交感神経節。交感神経神経線維は濾胞近傍に終末し、分泌に影響を及ぼす。
臨床関連
診察所見と疾患
非腫瘍性疾患
- a) 無形成 Agenesis
- b) 低形成 Hypoplasia
- c) 異所性甲状腺:異残物
- mynocyclineによるblack thyroid:消耗性色素リポフスチンと他の物質(lipid-drug complexによりlysosomeに色素が沈着する)。
- a) 濾胞腺腫 follicular adenoma
- a) 乳頭癌 papillary carcinoma 88%
- b) 濾胞癌 follicular carcinoma 4.2% 甲状腺濾胞癌 thyroid follicular carcinoma
- c) 低分化癌 poorly differentiated carcinoma
- d) 未分化癌 undifferentiated carcinoma 1.5%
- e) 髄様癌(C細胞癌) medullary carcinoma, C-cell carcinoma 1.4%
- f) 悪性リンパ腫 malignant lymphoma 3.5%
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.
分類
[★]
- 英
- toxic multinodular goiter
- 関
- 機能性甲状腺結節
[show details]
[★]
非中毒性多結節性甲状腺腫、腺腫様甲状腺腫
[★]
- 関
- intoxicated、poisonous、toxicity、venomous、virulence、virulent