Non-Hodgkin's lymphoma presenting as multiple bone lesions and hypercalcemia |
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Authors: | Takasaki Hirotaka Kanamori Heiwa Takabayashi Maki Yamaji Satoshi Koharazawa Hideyuki Taguchi Jun Fujimaki Katsumichi Ishigatsubo Yoshiaki |
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Institution: | Department of Internal Medicine and Clinical Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Japan. |
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Abstract: | We report a rare case of a patient with non-Hodgkin's lymphoma who developed multiple bone lesions and hypercalcemia. A 50-year-old woman complained of drowsiness and multiple bone pain on admission. Radiographic examination revealed multiple bone fractures and osteolytic lesions. She was diagnosed with diffuse large B cell lymphoma by biopsy of an inguinal lymph node. Elevation of parathyroid hormone-related protein (PTHrP) and hypercalcemia were confirmed pretreatment, and those serum levels decreased during chemotherapy for lymphoma. However, the disease was resistant to chemotherapy combined with rituximab. These findings suggest that hypercalcemia is associated with PTHrP and the prognosis of patients with bone lymphoma in advanced stage is poor, although it is thought to be a relatively favorable prognosis in localized primary lymphoma of bone. |
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Keywords: | multiple lymphomas of bone parathyroid hormone‐related protein hypercalcemia |
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