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An autonomous thyroid nodule or "hot nodule" is one that has thyroid function independent of the homeostatic control of the HPT axis (hypothalamic–pituitary–thyroid axis). According to a 1993 article, such nodules need to be treated only if they become toxic; surgical excision (thyroidectomy), radioiodine therapy, or both may be used. [33]
The United States Geological Survey National Volcanic Threat Assessment is a report containing a ranked list of active volcanoes in the United States posing hazardous risks to the American population. [1] The report was published by the United States Geological Survey in 2005 [2] and revised in 2018. [3]
Thyroid cancer accounts for less than 1% of cancer cases and deaths in the UK. Around 2,700 people were diagnosed with thyroid cancer in the UK in 2011, and around 370 people died from the disease in 2012. [70] However, in South Korea, thyroid cancer was the 5th most prevalent cancer, which accounted for 7.7% of new cancer cases in 2020. [71]
There is still a risk of hypothyroidism though, as the remaining thyroid tissue may not be able to produce enough hormones in the long-run. [citation needed] If the nodule is malignant or has indeterminate cytologic features, it may require surgery. [2] A thyroidectomy is a medium-risk surgery that can result in complications if not performed ...
Papillary microcarcinoma is a subset of papillary thyroid cancer defined as measuring less than or equal to 1 cm. [15] The highest incidence of papillary thyroid microcarcinoma in an autopsy series was reported by Harach et al. in 1985, who found 36 of 101 consecutive autopsies to have an incidental microcarcinoma. [16]
National Geographic Video is an educational video series founded by ... National Geographic Special 15474 Volcano! ... Educational Video Presentations 51515 Calculator
Mount Kanlaon, a 2,435m volcano, has erupted over 40 times since 1866. It last erupted in June this year, sending hundreds of villagers to emergency shelters. Another eruption in 1996 killed at ...
The volcano has a pinnacle appearance resembling the spire-like shape of Mount Thielsen. [14] According to Harris (2005), the volcano resembles Cleopatra's Needle from certain angles and the Sugarloaf Mountain in Brazil from others. [5] The proximal relief for the volcano is 2,707 feet (825 m), while the draping relief is 3,363 feet (1,025 m).