Transformation of Follicular Lymphoma to Double Hit B-cell Lymphoma Causing Hypercalcemia in a 69-year-old Female: a Case Report and Review of the Literature
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Double hit B-cell lymphomas are rare tumors that are defined by a chromosomal breakpoint affecting the MYC/8q24 locus in combination with another recurrent breakpoint, mainly a t(14;18)(q32;q21) involving BCL2. These tumors mostly occur in adults and carry a very poor prognosis. Double hit lymphomas can occur de novo, or arise from transformation of follicular lymphoma. We report a case of a 69-year-old female with abdominal distention and progressively worsening weakness over six months. Patient presented with severe hypercalcemia and multiple intra-abdominal/pelvic masses. Histopathology results of the abdominal mass were compatible with a double hit B-cell lymphoma. However, bone marrow biopsy results showed a low grade follicular lymphoma, thus suggesting peripheral transformation of follicular lymphoma to double hit B-cell lymphoma. Patient was transferred to a tertiary care center and was started on combination chemotherapy (EPOCH: doxorubicin, etoposide, vincristine, cyclophosphamide, and prednisone). Our paper highlights not only transformation of follicular lymphoma to double hit B-cell lymphoma and the challenges encountered in diagnosing and treating these aggressive tumors, but also the association of new onset/worsening hypercalcemia in such patients.
Shestakova A, Rezk S, Ghasemizadeh D, Nael A, Zhao X Diagnostics (Basel). 2020; 10(3).
PMID: 32183313 PMC: 7151221. DOI: 10.3390/diagnostics10030157.
Conte G, Harmon J, Le M, Sun X, Schuler J, Levitt M World J Oncol. 2020; 10(6):231-236.
PMID: 31921379 PMC: 6940034. DOI: 10.14740/wjon1246.
Yoo J, Kim J, Kwon H, Lim J Case Rep Endocrinol. 2018; 2018:7676580.
PMID: 30147967 PMC: 6083738. DOI: 10.1155/2018/7676580.