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dystrophic
Dystrophic
calcification is the most common type of calcinosis cutis and is associated
with a variety of disorders.
When
dystrophic calcification occurs locally and consists of only a few deposits of
calcium salts, it is referred to as calcinosis circumscripta
When
the deposits are large and widespread, it is termed calcinosis universalis.
Metastatic
calcification is the precipitation of calcium salts in normal tissue
as a result of an underlying defect in calcium and/or phosphate metabolism.
The
calcification is usually widespread and affects predominally blood vessels,
kidneys, lungs and gastric mucosa. A variety os systemic disorders lead to
metastatic calcification.
Idiopathic
calcification occurs without evidence of tissue abnormality or
aberrant calcium and/or phosphate metabolism.
Iatrogenic
calcification may be a complication of intravenous calcium chloride
and calcium gluconate therapy. With extravation of the calcium solution,
calcified nodules may appear.
PUBLICATIONS
1.
Dovigo L, Menegale G, Cominato PA, Comper P, Bazzanini G, Roveri N, Bigi A,
Strumia R.Studio ultrastrutturale dei depositi calcifici nella sclerodermia.
Atti Simposio "Le sindromi sclerodermiche", Udine 30-31 ottobre 1987.
2.
Strumia R.Bettoli V, Marchetti F. Calcinosi con eliminazione transepiteliale in
porfiria cutanea tarda. G It Derm Venereol 125,201,1990.
3.
Bettoli V, Bigi A, Cojazzi G, Roveri N, Strumia R. Structural and chemical
characterization of a cutaneous calcification. J Therm Analysis
1992;38:2719-2728.
4.
Strumia R, Lombardi AR, Altieri E. Un caso di orecchio pietrificato.Atti
Congresso SIDEV, pag. 130, Trieste 4-5 ottobre 1996.
5.
Strumia R, Lombardi AR, Altieri E.The petrified ear - A manifestation of
dystrophic calcification.Dermatology 1997;194:371-3.
IMAGES