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  • Title: Adult T-type lymphoblastic lymphoma presenting as hypercalcemic crisis and aplastic anemia: a case report.
    Author: Essouma M, Soh DM, Temgoua MN, Gobina RM, Nono AT, Atenguena EO, Maimouna M, Ashuntantang GE.
    Journal: J Med Case Rep; 2019 Oct 08; 13(1):305. PubMed ID: 31594542.
    Abstract:
    BACKGROUND: Hypercalcemia and aplastic anemia are two uncommon presentations of non-Hodgkin lymphoma that potentially worsen the disease prognosis. Although hypercalcemia has been reported in the B-cell subtypes and some T-cell subtypes of non-Hodgkin lymphoma, it has not been described in T-cell lymphoblastic lymphoma. The same applies to aplastic anemia, which is also not described in T-type lymphomas. CASE PRESENTATION: We report a case of a 52-year-old Cameroonian man with acute kidney injury who presented with confusion, abdominal pain, constipation, polyuria, polydipsia, calciphylaxis, enlarged lymph nodes, tachycardia, and a blood pressure of 170/88 mmHg. Laboratory investigations revealed hypercalcemia (total/ionized 199.5/101.75 mg/L), normal serum phosphorus (40.20 mg/L), and a low intact parathyroid hormone (9.70 pg/ml). Complete blood count revealed pancytopenia. Peripheral blood smear confirmed thrombocytopenia but showed neither blasts nor flower cells. Bone marrow aspirate revealed hypocellularity with no blasts or fibrosis. Lymph node biopsy was suggestive of T-cell precursor lymphoma. T-lymphoblastic lymphoma presenting with hypercalcemic crisis and aplastic anemia was diagnosed, and the patient received the cyclophosphamide-doxorubicin-vincristine-prednisone protocol of chemotherapy together with filgrastim and whole-blood transfusion for aplastic anemia. The short-term outcome was fatal, however. CONCLUSIONS: Severe hypercalcemia and aplastic anemia are potential paraneoplastic syndromes of adult T-type lymphoblastic lymphoma, with fatal short-term outcome.
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