The encoded protein is a type 1A regulatory subunit of protein kinase A. Inactivating germline mutations of this gene are found in 70% of people with Carney complex.Less commonly, the molecular pathogenesis of Carney complex is a variety of genetic changes at chromosome 2 (2p16).Both types of Carney complex are autosomal dominant. Despite dissimilar genetics, there appears to be no phenotypic difference between PRKAR1A and chromosome 2p16 mutations. Treatment
Cardiac myxomas can be difficult to manage surgically because of recurrence within the heart, often far away from the site of the initial tumor. History
In 1914 an American neurosurgeon, Harvey Cushing, reported on a patient with a pituitary tumour on whom he had operated. The post mortem findings as reported were consistent with Carney complex, though at the time this condition had yet to be described. In 2017 archived tissue from the operation in Cushings report was subjected to DNA sequencing, revealing an Arg74His (arginine to histidine: guanine (G)-> adenosine (A) transition in the second codon position of the 74th codon in the protein) mutation in the PRKAR1A gene, confirming a diagnosis of Carney complex. Therefore, Cushings paper appears to be the first report of this complex. See also
Epithelioid blue nevus
List of cutaneous neoplasms associated with systemic syndromes

References
External links

GeneReview/UW/NIH entry on Carney complex
Fluorouracil (5-FU), sold under the brand name Adrucil among others, is a cytotoxic chemotherapy medication used to treat cancer. By intravenous injection it is used for treatment of colorectal cancer, oesophageal cancer, stomach cancer, pancreatic cancer, breast cancer, and cervical cancer. As a cream it is used for actinic keratosis, basal cell carcinoma, and skin warts.Side effects of use by injection are common. They may include inflammation of the mouth, loss of appetite, low blood cell counts, hair loss, and inflammation of the skin. When used as a cream, irritation at the site of application usually occurs. Use of either form in pregnancy may harm the baby. Fluorouracil is in the antimetabolite and pyrimidine analog families of medications. How it works is not entirely clear but believed to involve blocking the action of thymidylate synthase and thus stopping the production of DNA.Fluorouracil was patented in 1956 and came into medical use in 1962. It is on the World Health Organizations List of Essential Medicines. Medical uses
Fluorouracil has been given systemically for anal, breast, colorectal, oesophageal, stomach, pancreatic and skin cancers (especially head and neck cancers). It has also been given topically (on the skin) for actinic keratoses, skin cancers and Bowens disease and as eye drops for treatment of ocular surface squamous neoplasia. Other uses include ocular injections into a previously created trabeculectomy bleb to inhibit healing and cause scarring of tissue, thus allowing adequate aqueous humor flow to reduce intraocular pressure.