Published online Nov 24, 2019. doi: 10.5306/wjco.v10.i11.369
Peer-review started: May 20, 2019
First decision: August 2, 2019
Revised: September 4, 2019
Accepted: September 25, 2019
Article in press: September 25, 2019
Published online: November 24, 2019
Processing time: 192 Days and 17.1 Hours
Infiltration of the breast by leukemic cells is uncommon but may manifest as an oncological emergency requiring prompt management. Extramedullary relapse of T-cell acute lymphoblastic leukemia (T-ALL) within the breast is exceedingly rare and there is paucity of data in the literature regarding this entity. No consensus exists on management of isolated extramedullary breast relapses of T-ALL. Herein, we report a case of isolated extramedullary breast relapse of T-ALL treated with breathing adapted radiation therapy (BART) using the active breathing control (ABC) system.
The patient was a 33-year-old female with diagnosis of T-ALL. She received intensive systemic chemotherapy that resulted in complete remission of her disease, and then underwent allogeneic hematopoietic stem cell transplantation. After a 15 mo period without symptoms and signs of progression, the patient presented with palpable masses in both breasts. She complained from severe pain and swelling of the breasts. Imaging workup showed bilateral breast lesions, and diagnosis of breast infiltration by leukemic cells was confirmed after immunohistopathological evaluation. The patient suffering from severe pain, discomfort, and swelling of both breasts due to leukemic infiltration was referred to the Radiation Oncology Department for symptomatic palliation. Whole breast irradiation was delivered to both breasts of the patient with BART using the ABC system. The patient had complete resolution of her symptoms after treatment with BART.
BART with the ABC system resulted in complete resolution of the patient’s symptoms due to leukemic infiltration of both breasts with T-ALL. This contemporary treatment technique should be preferred for radiotherapeutic management of patients with leukemic infiltration of the breasts to achieve effective symptomatic palliation.
Core tip: Although exceedingly rare, leukemic infiltration of the breasts by T-cell acute lymphoblastic leukemia (T-ALL) may manifest as an oncological emergency requiring prompt management. In this case report, we present the first case in the literature treated by breathing adapted radiation therapy using the active breathing control system for management of isolated extramedullary relapse of T-ALL in both breasts.