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For:	Grauer A. Hypercalcemia associated with hematologic malignancies. Recent Results Cancer Res 1994;137:114-21. [PMID: 7878291 DOI: 10.1007/978-3-642-85073-8_7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]

Number	Cited by Other Article(s)
1	Mitobe M, Kawamoto K, Suzuki T, Kiryu M, Nanba A, Suwabe T, Tanaka T, Fuse K, Shibasaki Y, Masuko M, Miyoshi H, Ohshima K, Sone H, Takizawa J. Anaplastic large cell lymphoma, with 1,25(OH)_²D_³-mediated hypercalcemia: A case report. J Clin Exp Hematop 2019;59:22-28. [PMID: 30918141 PMCID: PMC6528141 DOI: 10.3960/jslrt.18033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open Abstract Hypercalcemia due to malignant tumors including malignant lymphomas is relatively common. Among cancer patients with hypercalcemia, humoral hypercalcemia of malignancy is the most common and accounts for about 80% of all cases with hypercalcemia. 1,25-dihydroxyvitamin D_³(1,25(OH)_²D_³)-mediated hypercalcemia is relatively rare. Although malignant lymphoma has been also reported to cause 1,25(OH)_²D_³-mediated hypercalcemia, it is not known whether there is any association between 1,25(OH)_²D_³-mediated hypercalcemia and any specific histological type of malignant lymphoma. We herein report a case of an anaplastic large cell lymphoma (ALCL), anaplastic lymphoma kinase (ALK) -negative with 1,25(OH)_²D_³-mediated hypercalcemia, which has never been previously reported. An 80-year-old Japanese man was admitted to our department due to acute exacerbation of hypercalcemia. He was diagnosed with ALCL, ALK-negative. Serum 1,25(OH)_²D_³ level was high and seemed to be associated with the lymphoma because the serum calcium and 1,25(OH)_²D_³ levels improved in response to chemotherapy. Histological findings showed that many CD68 positive macrophages were observed in the microenvironment of tumor cells. Lymphoma cells or tumor microenvironmental cells may produce 1,25(OH)_²D_³ because several previous reports showed the source of 1,25(OH)_²D_³ can be either lymphoma or tumor microenvironmental cells. Moreover, because 1,25(OH)_²D_³-mediated hypercalcemia has been reported regardless of the specific histological type of lymphoma, tumor microenvironmental cells may be involved in this condition. However, we could not identify the source of 1,25(OH)_²D_³ in this case. The association between 1,25(OH)_²D_³ production and prognosis in malignant lymphomas is yet unknown; further studies are needed to elucidate the clinical characteristics of malignant lymphoma with 1,25(OH)_²D_³-mediated hypercalcemia. Collapse Key Words 1,25-dihydroxyvitamin D3 anaplastic large cell lymphoma hypercalcemia Collapse MESH Headings Aged, 80 and over Fluorodeoxyglucose F18 Humans Hypercalcemia/etiology Lymphoma, Large-Cell, Anaplastic/complications Lymphoma, Large-Cell, Anaplastic/diagnosis Male Positron Emission Tomography Computed Tomography Vitamin D/analogs & derivatives Vitamin D/blood Collapse Grants Collapse Affiliation(s) Collapse

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Cited by Other Article(s)

Mitobe M, Kawamoto K, Suzuki T, Kiryu M, Nanba A, Suwabe T, Tanaka T, Fuse K, Shibasaki Y, Masuko M, Miyoshi H, Ohshima K, Sone H, Takizawa J. Anaplastic large cell lymphoma, with 1,25(OH)_²D_³-mediated hypercalcemia: A case report. J Clin Exp Hematop 2019;59:22-28. [PMID: 30918141 PMCID: PMC6528141 DOI: 10.3960/jslrt.18033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open

Abstract

Hypercalcemia due to malignant tumors including malignant lymphomas is relatively common. Among cancer patients with hypercalcemia, humoral hypercalcemia of malignancy is the most common and accounts for about 80% of all cases with hypercalcemia. 1,25-dihydroxyvitamin D_³(1,25(OH)_²D_³)-mediated hypercalcemia is relatively rare. Although malignant lymphoma has been also reported to cause 1,25(OH)_²D_³-mediated hypercalcemia, it is not known whether there is any association between 1,25(OH)_²D_³-mediated hypercalcemia and any specific histological type of malignant lymphoma. We herein report a case of an anaplastic large cell lymphoma (ALCL), anaplastic lymphoma kinase (ALK) -negative with 1,25(OH)_²D_³-mediated hypercalcemia, which has never been previously reported. An 80-year-old Japanese man was admitted to our department due to acute exacerbation of hypercalcemia. He was diagnosed with ALCL, ALK-negative. Serum 1,25(OH)_²D_³ level was high and seemed to be associated with the lymphoma because the serum calcium and 1,25(OH)_²D_³ levels improved in response to chemotherapy. Histological findings showed that many CD68 positive macrophages were observed in the microenvironment of tumor cells. Lymphoma cells or tumor microenvironmental cells may produce 1,25(OH)_²D_³ because several previous reports showed the source of 1,25(OH)_²D_³ can be either lymphoma or tumor microenvironmental cells. Moreover, because 1,25(OH)_²D_³-mediated hypercalcemia has been reported regardless of the specific histological type of lymphoma, tumor microenvironmental cells may be involved in this condition. However, we could not identify the source of 1,25(OH)_²D_³ in this case. The association between 1,25(OH)_²D_³ production and prognosis in malignant lymphomas is yet unknown; further studies are needed to elucidate the clinical characteristics of malignant lymphoma with 1,25(OH)_²D_³-mediated hypercalcemia.

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