Search results
Results from the WOW.Com Content Network
Alkaptonuria is a rare inherited genetic disease which is caused by a mutation in the HGD gene for the enzyme homogentisate 1,2-dioxygenase (EC 1.13.11.5); if a person inherits an abnormal copy from both parents (it is a recessive condition), the body accumulates an intermediate substance called homogentisic acid in the blood and tissues.
CCRN histopathology indicates the presence of elastic cartilage enclosed by various skin structures such as eccrine glands, adipose tissue, and pilosebaceous units. [4] To assess the extent of the lesion as well as look for any underlying sinus tracts, ultrasonography alongside computed tomography (CT) scans can be used.
Cartilage: Darkening and hardening of ear cartilage is a prominent feature of ochronosis. Nasal cartilage is also frequently involved. The voice can be affected by hardening of the laryngeal cartilage. Stiffening of the ribs with decreased lung function has also been reported. The intervertebral cartilage is also more prone to herniation.
The cause of CIN is chronic infection of the cervix with HPV, especially infection with high-risk HPV types 16 or 18. It is thought that the high-risk HPV infections have the ability to inactivate tumor suppressor genes such as the p53 gene and the RB gene, thus allowing the infected cells to grow unchecked and accumulate successive mutations, eventually leading to cancer.
Cervical cancer typically develops from precancerous changes called cervical intraepithelial neoplasia over 10 to 20 years. [3] About 90% of cervical cancer cases are squamous cell carcinomas, 10% are adenocarcinoma, and a small number are other types. [4] Diagnosis is typically by cervical screening followed by a biopsy. [2]
Merkel cell carcinoma (MCC) is a rare and aggressive skin cancer occurring in about three people per million members of the population. [1] It is also known as cutaneous APUDoma, primary neuroendocrine carcinoma of the skin, primary small cell carcinoma of the skin, and trabecular carcinoma of the skin. [2]
The Papanicolaou test (abbreviated as Pap test, also known as Pap smear (AE), [1] cervical smear (BE), cervical screening (BE), [2] or smear test (BE)) is a method of cervical screening used to detect potentially precancerous and cancerous processes in the cervix (opening of the uterus or womb) or, more rarely, anus (in both men and women). [3]
Other tumors even if very small can produce adverse effects by secreting hormones. [49] Ten per cent (10%) [50] or less of carcinoids, primarily some midgut carcinoids, secrete excessive levels of a range of hormones, most notably serotonin (5-HT) or substance P, [51] causing a constellation of symptoms called carcinoid syndrome: [citation ...