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Familial Medullary Thyroid Carcinoma

MEN2


Presentation

  • Until today, 20/50 M918V carriers underwent thyroidectomy and all presented MTC/C-cell hyperplasia; the remainder carriers are on clinical follow-up. None of the M918V carriers presented clinical features of MEN 2B.[ncbi.nlm.nih.gov]
Amyloidosis
  • Gov't MeSH terms Adolescent Adult Aged Amyloidosis, Familial/complications Amyloidosis, Familial/genetics* Amyloidosis, Familial/metabolism Calcitonin/metabolism Carcinoma, Medullary/congenital* Carcinoma, Medullary/genetics Carcinoma, Medullary/metabolism[ncbi.nlm.nih.gov]
  • "Familial Medullary Thyroid Carcinoma Associated with Cutaneous Lichen Amyloidosis."[deepblue.lib.umich.edu]
Neonatal Intestinal Obstruction
  • We now report the study of a FMTC family with four affected members and a history of fatal neonatal intestinal obstruction in the sister of the proband.[ncbi.nlm.nih.gov]
Camping
  • Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Center Drive, Building 10, Rm 5D37 Bethesda, MD 20892, USA (5) Institute of Pathology, Ruhr-Universität Bochum an den BG Kliniken Bergmannsheil, Bürkle-de-la-Camp-Platz[bmccancer.biomedcentral.com]
Suggestibility
  • We suggest that parental imprinting may play a role in the ethiology of HSCR caused by mutations in the RET protooncogene.[ncbi.nlm.nih.gov]
Tremulousness
  • However, such tumors commonly produce abnormally high levels of adrenalin and noradrenalin and may cause high blood pressure, a rapid or irregular heart rate, tremulousness, meaning tremors or involuntary muscular contractions, and cardiac arrest, which[cancer.net]

Treatment

  • Two underwent non-normative thyroidectomy either two or four times without physician awareness or diagnosis of this disease at initial treatment, but with elevated Ct.[ncbi.nlm.nih.gov]

Prognosis

  • Several disease-causing mutations of this gene have been identified and their clinical prognosis described. The penetrance of these mutations is high; as such, carriers progress to develop medullary thyroid carcinoma at a young age.[ncbi.nlm.nih.gov]
  • In the Italian family the mean age at diagnosis is 25.8 years ( S.D. 7.8) and interestingly none of the patients have distant metastasis, suggesting a possibly better prognosis compared to RET-related fMTC.[endocrine-abstracts.org]
  • Prognosis and Survival Patients with FNMTC have cancer recurrences more common than with sporadic PTC or FTC.[shifrinmd.com]
  • As with any malignancy, staging of disease is an important part of management to inform treatment planning and prognosis.[radiopaedia.org]

Etiology

  • The femoropopliteal aneurysm can be accompanied by an AAA in up to 70% of the cases.13,14 Etiology The etiology and pathogenesis of acquired aneurysmal disease are complex and have yet to be fully elucidated.[revespcardiol.org]
  • Etiology Medullary thyroid cancer can be classified into 4 types: 1) Sporadic 2) Hereditary MEN2A 3) Hereditary MEN2B 4) Hereditary familial medullary thyroid cancer (FMTC) Epidemiology In the United States, thyroid cancer comprises 3% of new malignancies[atlasgeneticsoncology.org]

Epidemiology

  • , epidemiology, and end results database analysis Chunping Liu 1,*, Qiuyang Zhao 1,*, Zhi Li 1, Shuntao Wang 1, Yiquan More information mr.sc.[healthdocbox.com]
  • Center for Epidemiology. Cancer Incidence in Sweden 1996. Stockholm, 1998. Google Scholar 17. Goldgar DE, Easton DF, Cannon-Albright LA, Skolnick MH. Systematic population-based assessment of cancer risk in first-degree relatives of cancer probands.[link.springer.com]
  • Epidemiology Frequency United States Medullary carcinoma of the thyroid (MTC) constitutes approximately 4% of all thyroid cancers in the United States. [2] This figure translates into approximately 1000 diagnoses per year.[reference.medscape.com]
  • Epidemiology of thoracic aortic dissection. Nat Rev Cardiol. 2011;8(2):103–13. 6. Knepper J, Upchurch Jr GR. A review of clinical trials and registries in descending thoracic aortic aneurysms. Semin Vasc Surg. 2010;23(3):170–5. 7.[cardiothoracicsurgery.biomedcentral.com]
  • Etiology Medullary thyroid cancer can be classified into 4 types: 1) Sporadic 2) Hereditary MEN2A 3) Hereditary MEN2B 4) Hereditary familial medullary thyroid cancer (FMTC) Epidemiology In the United States, thyroid cancer comprises 3% of new malignancies[atlasgeneticsoncology.org]
Sex distribution
Age distribution

Pathophysiology

  • Pathophysiology Medullary thyroid cancer (MTC) is usually diagnosed on physical examination as a solitary neck nodule, and early spread to regional lymph nodes is common. Distant metastases occur in the liver, lung, bone, and brain.[reference.medscape.com]
  • Markers of the extension of atherosclerosis, such as the presence of atheromatous plaques in the thoracic aorta, have been associated with a higher prevalence of AAA (14% vs 1.4%).19 Pathophysiology The factors that trigger a response in the form of a[revespcardiol.org]
  • Familial thoracic aortic aneurysm/dissection with patent ductus arteriosus: genetic arguments for a particular pathophysiological entity. Eur J Hum Genet. 2004;12:173–80.[ncbi.nlm.nih.gov]

Prevention

  • CONCLUSION: It appears that preventive lymphadenectomy does not substantially improve survival, while pre-clinical diagnosis is of greater importance than surgery in improving survival and preventing recurrence.[ncbi.nlm.nih.gov]

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