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Calciphylaxis in end-stage renal disease prior to dialytic treatment: a case report and literature review

Authors Tamayo-Isla RA, Cuba de la Cruz M

Received 28 November 2014

Accepted for publication 1 January 2015

Published 13 February 2015 Volume 2015:8 Pages 13—18

DOI https://doi.org/10.2147/IJNRD.S78310

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 4

Editor who approved publication: Professor Pravin Singhal


Ramón Alberto Tamayo-Isla, Mauro Cuba de la Cruz

Internal Medicine Department, Pietersburg Provincial Hospital, Polokwane Kidney and Dialysis Centre, Limpopo Province, South Africa

Introduction: Calciphylaxis is a rare medical condition that is usually diagnosed in patients suffering from end-stage renal disease who are already receiving renal replacement therapy and in those post-transplantation. The pathogenesis still remains to be fully elucidated; hence, the treatment is not uniform. The prognosis is generally poor. The ulcerative stage exhibits a worse prognosis than the nonulcerative one. Calciphylaxis presenting in terminal kidney disease prior to dialytic treatment has only rarely been reported.
Case presentation: A 32-year-old female Caucasian clerk sought medical attention for increasing tiredness and lower limb skin ulcers. Polycystic kidney disease was diagnosed in her late father and two of her siblings. At the first nephrology consultation, obesity, pallor, bilateral flank masses with ballottement, and two ulcers with a dark necrotic center on the distal left leg were noted. In addition, another indurated light bluish lesion of 5 cm just above the right knee with intact skin was observed. All lesions were very tender and warm on touch. Laboratory results yielded hypercalcemia, hyperphosphatemia, anemia, and parathyroid hormone levels that were more than ten times the normal values in the patient, and with a glomerular filtration rate of 4 mL/minute. Skin biopsy confirmed the suspicion of calciphylaxis. The patient was placed on peritoneal dialysis with low Ca concentration baths, cinacalcet, and aluminum hydroxide. The results included correction of hypercalcemia, improvement of phosphate levels, and the product of both Ca and phosphate, but only a transitory decrease in serum parathyroid hormone levels. The ulcerations were completely healed after 2 months of treatment. Cinacalcet was discontinued after 18 months, but multiple large-size, nonulcerative indurated areas appeared 3 months later in the lower limbs after discontinuation of the drug. A parathyroidectomy performed 17 months later revealed a four-gland hyperplastic disease. The patient experienced relief of skin symptoms soon after the procedure and remains in a very satisfactory condition.
Conclusion: Calciphylaxis is a very complex clinical entity. Calciphylaxis presenting prior to dialytic treatment in end-stage renal disease is rare in the absence of a trigger. Cinacalcet and parathyroidectomy should be considered in selected patients.

Keywords: calciphylaxis, end-stage renal disease, parathyroid hyperplasia, cinacalcet

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