Abstract
A 42‐year‐old man with ESKD who has been on intermittent hemodialysis for 7 years, presented with extremely painful inguinal ulcer and abdominal mass. The lesion was developed 2 weeks after repairing aneurysmal cubital AVF. At first, it was a small and painful red nodule but then its size increased and a large ulcer was developed. In addition, the physical examination revealed a palpable and painful large mass at left lower side of abdominal wall. He did not have important risk factors such as diabetes mellitus, treatment with warfarin, and use of calcium containing phosphate binders, vitamin D or calcium supplements. The patient suffered a long standing and severe secondary hyperparathyroidism. The parathyroid hormone level was too high (3100 pg/ml). In addition, serum calcium and phosphorus levels were 9.4 mg/dl and 9.8 mg/dl respectively. The SPECT-CT scan with 99 m Tc-MIBI of parathyroid glands confirmed persistence of an adenoma in right lower parathyroid gland (Figure 1, green arrow). The BMI was 32 kg/m2. He had no adherence to use of phosphate binder or calcimimetic drugs. The radiological studies showed extensive microvascular calcification in soft tissues (Figure 1, small arrow) and osteitis fibrosa cystica in long bones (Figure 1, star). The patient underwent surgical debridement of ulcer and palpable abdominal mass, wound care, intensive dialysis therapy with low calcium dialysis bath, cinacalcet, sevelamer carbonate, antibiotic and analgesic therapy. The histological sample (H&E, 200X) shows Intramural calcification and obliteration of arteriole (large arrow) with extensive calcification in fat tissue (Figure 1, arrow head) which was consistent with Calcific Uremic Arteriolopathy (CUA). In addition to patient’s poor compliance to treatment of severe secondary hyperparathyroidism, the recent surgery of aneurismal AVF could also be an important trigger to development of calcific uremic arteriolopathy.
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More From: Journal of Clinical Images and Medical Case Reports
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