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Ki-1+ large-cell anaplastic lymphoma after Ewing sarcoma
H C Rossbach1, W Chamizo, A K Walling
1Division of Pediatric Hematology/Oncology, All Children's Hospital, St. Petersburg, Florida, USA.
Journal of Pediatric Hematology/Oncology
|February 25, 1999
Summary
A rare case of large cell anaplastic lymphoma developed in an 11-year-old girl after Ewing sarcoma treatment. The patient remains in remission from both cancers, prompting further investigation into potential causes.
Area of Science:
- Oncology
- Hematology
- Pediatric Oncology
Background:
- Ewing sarcoma (ES) is a rare bone cancer primarily affecting children and young adults.
- Anaplastic large cell lymphoma (ALCL) is a distinct type of non-Hodgkin lymphoma.
Observation:
- An 11-year-old female patient diagnosed with pelvic ES.
- Developed a Ki-1+ ALCL in the same anatomical location 10 months post-multimodal therapy for ES.
- ES recurrence noted 16 months post-allogeneic marrow transplantation.
Findings:
- The patient achieved remission from both Ewing sarcoma and anaplastic large cell lymphoma.
- The simultaneous occurrence of these two malignancies in close temporal and anatomical proximity is highly unusual.
- The patient remains in lymphoma remission despite ES recurrence.
Implications:
- This case highlights the complex interplay of treatments and potential secondary malignancies.
- Further research is needed to explore the role of chemoradiotherapy and genetic predisposition in the development of secondary cancers.
- Understanding these associations is crucial for long-term cancer survivorship care.
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