A case of intravascular large B-cell lymphoma complicated by hypercalcaemia

Introduction: Hypercalcaemia in intravascular large B-cell lymphoma (IVLBCL) is extremely rare, occurring more often in other non-Hodgkin’s lymphomas (NHL). Case description: A 68-year-old man was admitted with a fever of unknown origin, mild disturbance of consciousness and respiratory failure. Lab...

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Main Authors: Masahiro Yabe, Takashi Abe, Saori Yamaga, Seiga Ozaki, Katsuhiro Tomiyama, Hideki Hashidate
Format: Article
Language:English
Published: SMC MEDIA SRL 2025-04-01
Series:European Journal of Case Reports in Internal Medicine
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Online Access:https://www.ejcrim.com/index.php/EJCRIM/article/view/5406
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author Masahiro Yabe
Takashi Abe
Saori Yamaga
Seiga Ozaki
Katsuhiro Tomiyama
Hideki Hashidate
author_facet Masahiro Yabe
Takashi Abe
Saori Yamaga
Seiga Ozaki
Katsuhiro Tomiyama
Hideki Hashidate
author_sort Masahiro Yabe
collection DOAJ
description Introduction: Hypercalcaemia in intravascular large B-cell lymphoma (IVLBCL) is extremely rare, occurring more often in other non-Hodgkin’s lymphomas (NHL). Case description: A 68-year-old man was admitted with a fever of unknown origin, mild disturbance of consciousness and respiratory failure. Laboratory findings showed hypercalcaemia with elevated parathyroid hormone-related protein (PTHrP) and decreased intact parathyroid hormone and 1,25-dihydroxyvitamin D. The patient was diagnosed with IVLBCL via random skin biopsy. Chemotherapy resulted in complete remission and normalised PTHrP levels. Conclusion: More than half of all cases of hypercalcaemia in NHL are not associated with PTHrP or 1,25-dihydroxyvitamin D, and the cause of the hypercalcaemia is unknown. However, PTHrP levels are elevated in most cases of IVLBCL with hypercalcaemia, which may present as humoral hypercalcaemia of malignancy.
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institution DOAJ
issn 2284-2594
language English
publishDate 2025-04-01
publisher SMC MEDIA SRL
record_format Article
series European Journal of Case Reports in Internal Medicine
spelling doaj-art-7fe3ecd152774d628f220e9b8263ca112025-08-20T03:11:25ZengSMC MEDIA SRLEuropean Journal of Case Reports in Internal Medicine2284-25942025-04-0110.12890/2025_0054064941A case of intravascular large B-cell lymphoma complicated by hypercalcaemiaMasahiro Yabe0Takashi Abe1Saori Yamaga2Seiga Ozaki3Katsuhiro Tomiyama4Hideki Hashidate5Department of General Internal Medicine, Niigata City General Hospital, Niigata, JapanDepartment of Hematology, Niigata City General Hospital, Niigata, JapanDepartment of General Internal Medicine, Niigata City General Hospital, Niigata, JapanDepartment of General Internal Medicine, Niigata City General Hospital, Niigata, JapanDepartment of Dermatology, Niigata City General Hospital, Niigata, JapanDepartment of Pathology, Niigata City General Hospital, Niigata, JapanIntroduction: Hypercalcaemia in intravascular large B-cell lymphoma (IVLBCL) is extremely rare, occurring more often in other non-Hodgkin’s lymphomas (NHL). Case description: A 68-year-old man was admitted with a fever of unknown origin, mild disturbance of consciousness and respiratory failure. Laboratory findings showed hypercalcaemia with elevated parathyroid hormone-related protein (PTHrP) and decreased intact parathyroid hormone and 1,25-dihydroxyvitamin D. The patient was diagnosed with IVLBCL via random skin biopsy. Chemotherapy resulted in complete remission and normalised PTHrP levels. Conclusion: More than half of all cases of hypercalcaemia in NHL are not associated with PTHrP or 1,25-dihydroxyvitamin D, and the cause of the hypercalcaemia is unknown. However, PTHrP levels are elevated in most cases of IVLBCL with hypercalcaemia, which may present as humoral hypercalcaemia of malignancy.https://www.ejcrim.com/index.php/EJCRIM/article/view/5406intravascular large b-cell lymphomahypercalcaemiaparathyroid hormone-related proteinhumoral hypercalcaemia of malignancy
spellingShingle Masahiro Yabe
Takashi Abe
Saori Yamaga
Seiga Ozaki
Katsuhiro Tomiyama
Hideki Hashidate
A case of intravascular large B-cell lymphoma complicated by hypercalcaemia
European Journal of Case Reports in Internal Medicine
intravascular large b-cell lymphoma
hypercalcaemia
parathyroid hormone-related protein
humoral hypercalcaemia of malignancy
title A case of intravascular large B-cell lymphoma complicated by hypercalcaemia
title_full A case of intravascular large B-cell lymphoma complicated by hypercalcaemia
title_fullStr A case of intravascular large B-cell lymphoma complicated by hypercalcaemia
title_full_unstemmed A case of intravascular large B-cell lymphoma complicated by hypercalcaemia
title_short A case of intravascular large B-cell lymphoma complicated by hypercalcaemia
title_sort case of intravascular large b cell lymphoma complicated by hypercalcaemia
topic intravascular large b-cell lymphoma
hypercalcaemia
parathyroid hormone-related protein
humoral hypercalcaemia of malignancy
url https://www.ejcrim.com/index.php/EJCRIM/article/view/5406
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