Hyperdiploid Precursor B-acute Lymphoblastic Leukemia Presenting as a Cavernous Sinus Mass in a 4-Year-old Male

Area of Science:

• Pediatric Oncology
• Hematology
• Neuro-oncology

Background:

• Risk stratification and treatment selection are crucial for improving outcomes in pediatric precursor B-acute lymphoblastic leukemia (B-ALL).
• Extranodal involvement in pediatric B-ALL can present diagnostic and therapeutic challenges.

Observation:

• A 4-year-old male presented with a lymphomatous mass in the cavernous sinus, an unusual initial manifestation of newly diagnosed hyperdiploid B-ALL.
• Literature review revealed limited reports of lymphomatous involvement in the cavernous sinus, with none specifically associated with pediatric B-ALL.

Findings:

• The intracranial location of the tumor and its proximity to the central nervous system presented unique challenges for standard risk assignment protocols.
• This case highlights the importance of considering diverse presentations of B-ALL, even in rare anatomical locations.

Implications:

• This case underscores the need for tailored treatment strategies and careful risk assessment in pediatric B-ALL with atypical central nervous system or skull base involvement.
• Further research into the behavior and management of B-ALL with lymphomatous masses in critical anatomical locations is warranted.