Epidemiology
Seventy percent of people who develop psoriatic arthritis first show signs of psoriasis on the skin, 15 percent develop skin psoriasis and arthritis at the same time, and 15 percent develop skin psoriasis following the onset of psoriatic arthritis.Psoriatic arthritis can develop in people who have any level severity of psoriatic skin disease, ranging from mild to very severe.Psoriatic arthritis tends to appear about 10 years after the first signs of psoriasis. For the majority of people, this is between the ages of 30 and 55, but the disease can also affect children. The onset of psoriatic arthritis symptoms before symptoms of skin psoriasis is more common in children than adults.More than 80% of patients with psoriatic arthritis will have psoriatic nail lesions characterized by nail pitting, separation of the nail from the underlying nail bed, ridging and cracking, or more extremely, loss of the nail itself (onycholysis).Enthesitis is observed in 30 to 50% of patients and most commonly involves the plantar fascia and Achilles’ tendon, but it may cause pain around the patella, iliac crest, epicondyles, and supraspinatus insertionsMen and women are equally affected by this condition. Like psoriasis, psoriatic arthritis is more common among Caucasians than African or Asian people. References
External links
Psoriatic Arthritis at Patient.info
Guidelines of care for the management of psoriasis and psoriatic arthritis—National Guideline Clearinghouse
US National Institute of Arthritis and Musculoskeletal and Skin Diseases
A liver biopsy may be used, which is the most accurate diagnostic technique. The level of siderosis seen in a liver biopsy can be graded by severity. Treatment
Transfusional hemosiderosis is treated with a number of therapies. Venipuncture (phlebotomy) removes blood. Erythrocytapheresis filters red blood cells from the blood. Chelation therapy removes iron from the blood. This involves delivering iron chelating agents such as deferoxamine, deferiprone or deferasirox. If iron overload has caused damage to end-organs, this is generally irreversible and may require transplantation. Prognosis
Transfusion hemosiderosis can cause permanent damage to tissues that may lead to death. Tissue damage can remain even after chelation therapy. Outcomes are usually worse in patients who require blood transfusions compared to those who can have alternative therapies. Cardiomyopathy and cardiac arrhythmia are often a cause of death. Society
Ted DeVita died of transfusional iron overload from too many blood transfusions. See also
Hemosiderosis

References

Lu JP, Hayashi K (1994). "Selective iron deposition in pancreatic islet B cells of transfusional iron-overloaded autopsy cases". Pathol. Int. 44 (3): 194–9. doi:10.1111/j.1440-1827.1994.tb02592.x. PMID 8025661. S2CID 25357672.