Newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient: a case report

Metastatic pulmonary calcification (MPC) is defined as calcium deposition in lung tissues. It is commonly seen in end-stage renal disease patients. However, MPC occurring in kidney transplant recipients (KTRs) is rare. We report a case of MPC in a 55-year-old female patient after successful kidney t...

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Main Authors: Sojung Youn, Chul Woo Yang, Byung Ha Chung, Eun Jeong Ko
Format: Article
Language:English
Published: Korean Society for Transplantation 2022-12-01
Series:Korean Journal of Transplantation
Subjects:
Online Access:http://www.ekjt.org/journal/view.html?doi=10.4285/kjt.22.0026
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author Sojung Youn
Chul Woo Yang
Byung Ha Chung
Eun Jeong Ko
author_facet Sojung Youn
Chul Woo Yang
Byung Ha Chung
Eun Jeong Ko
author_sort Sojung Youn
collection DOAJ
description Metastatic pulmonary calcification (MPC) is defined as calcium deposition in lung tissues. It is commonly seen in end-stage renal disease patients. However, MPC occurring in kidney transplant recipients (KTRs) is rare. We report a case of MPC in a 55-year-old female patient after successful kidney transplantation (KT). One year after KT, bisphosphonate and vitamin D were prescribed for osteoporosis. Then, 4.5 years after KT, we incidentally found multiple nodular lesions on chest X-ray (CXR) without any symptoms. Chest computed tomography showed multiple high-density nodules. A bone scan confirmed MPC in the right middle lobe and right lower lobe. A retrospective review of pretransplant blood chemistry revealed the following: serum calcium level, 11.2 mg/dL; phosphorus level, 3.2 mg/dL; intact parathyroid hormone level, lower than 2.5 pg/mL; and 24-hour urine calcium level, within normal limits (WNL). After KT, all of these parameters remained WNL. Therefore, hidden adynamic bone disease might have been aggravated by bisphosphonate and vitamin D supplementation, causing MPC. Both were discontinued. She was monitored by routine CXR, and MPC did not progress. Since MPC is commonly asymptomatic and difficult to diagnose in KTRs, caution is required when administering such medications. Patient should be followed up with routine CXR.
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spelling doaj.art-2274e3144df24e7cb3849843a103fc192024-01-02T16:43:50ZengKorean Society for TransplantationKorean Journal of Transplantation2671-87902022-12-0136427828210.4285/kjt.22.0026kjt.22.0026Newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient: a case reportSojung Youn0Chul Woo Yang1Byung Ha Chung2Eun Jeong Ko3Division of Nephrology, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, KoreaTransplantation Research Center, Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, KoreaTransplantation Research Center, Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, KoreaTransplantation Research Center, Division of Nephrology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, KoreaMetastatic pulmonary calcification (MPC) is defined as calcium deposition in lung tissues. It is commonly seen in end-stage renal disease patients. However, MPC occurring in kidney transplant recipients (KTRs) is rare. We report a case of MPC in a 55-year-old female patient after successful kidney transplantation (KT). One year after KT, bisphosphonate and vitamin D were prescribed for osteoporosis. Then, 4.5 years after KT, we incidentally found multiple nodular lesions on chest X-ray (CXR) without any symptoms. Chest computed tomography showed multiple high-density nodules. A bone scan confirmed MPC in the right middle lobe and right lower lobe. A retrospective review of pretransplant blood chemistry revealed the following: serum calcium level, 11.2 mg/dL; phosphorus level, 3.2 mg/dL; intact parathyroid hormone level, lower than 2.5 pg/mL; and 24-hour urine calcium level, within normal limits (WNL). After KT, all of these parameters remained WNL. Therefore, hidden adynamic bone disease might have been aggravated by bisphosphonate and vitamin D supplementation, causing MPC. Both were discontinued. She was monitored by routine CXR, and MPC did not progress. Since MPC is commonly asymptomatic and difficult to diagnose in KTRs, caution is required when administering such medications. Patient should be followed up with routine CXR.http://www.ekjt.org/journal/view.html?doi=10.4285/kjt.22.0026calcinosis; multiple pulmonary nodules; kidney transplantation; bone diseases; case report
spellingShingle Sojung Youn
Chul Woo Yang
Byung Ha Chung
Eun Jeong Ko
Newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient: a case report
Korean Journal of Transplantation
calcinosis; multiple pulmonary nodules; kidney transplantation; bone diseases; case report
title Newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient: a case report
title_full Newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient: a case report
title_fullStr Newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient: a case report
title_full_unstemmed Newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient: a case report
title_short Newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient: a case report
title_sort newly diagnosed metastatic pulmonary calcification in a kidney transplantation recipient a case report
topic calcinosis; multiple pulmonary nodules; kidney transplantation; bone diseases; case report
url http://www.ekjt.org/journal/view.html?doi=10.4285/kjt.22.0026
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AT chulwooyang newlydiagnosedmetastaticpulmonarycalcificationinakidneytransplantationrecipientacasereport
AT byunghachung newlydiagnosedmetastaticpulmonarycalcificationinakidneytransplantationrecipientacasereport
AT eunjeongko newlydiagnosedmetastaticpulmonarycalcificationinakidneytransplantationrecipientacasereport