Sharma Sourabh, Arora Sahil, Binoy Renju, Agarwal Anupam, Prasad Pallavi, Verma Himanshu
Department of Nephrology, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India.
Indian J Nephrol. 2025 Mar-Apr;35(2):303-305. doi: 10.25259/ijn_534_23. Epub 2024 Jun 24.
Tumoral calcinosis is a rare syndrome characterized by calcium salt deposition in different periarticular soft tissue regions. We report this case of tumoral calcinosis with history of persistent soft tissue calcifications for over three decades. He presented with nephrotic syndrome and kidney biopsy revealed secondary amyloidosis. Genetic evaluation revealed GALNT3 mutation and diagnosis of hyperphosphatemic familial tumoral calcinosis was made. With this case report, we want to reiterate the need to consider tumoral calcinosis in secondary amyloidosis differentials and the pivotal role of genetic workup in chronic soft tissue calcifications.
肿瘤性钙化是一种罕见综合征,其特征为钙盐沉积于不同的关节周围软组织区域。我们报告了这例有持续三十多年软组织钙化病史的肿瘤性钙化病例。患者表现为肾病综合征,肾脏活检显示继发性淀粉样变性。基因评估发现GALNT3突变,从而诊断为高磷血症性家族性肿瘤性钙化。通过本病例报告,我们想重申在继发性淀粉样变性鉴别诊断中考虑肿瘤性钙化的必要性以及基因检查在慢性软组织钙化中的关键作用。