[Ewing sarcoma in a 12-year-old Gabonese boy].

Area of Science:

• Oncology
• Pediatric Oncology
• Bone Tumors

Background:

• Ewing sarcoma is a rare primary malignant bone tumor.
• It is exceptionally uncommon in Black populations.
• Early diagnosis is crucial for effective treatment.

Observation:

• A 12-year-old boy presented with a 2-year history of lower limb and pelvic pain, limping, functional disability, and visual disturbances.
• The patient was transferred to South Africa for specialized care.
• A bone biopsy was performed for diagnostic analysis.

Findings:

• Histological examination revealed clusters of small round cells consistent with Ewing tumor.
• The cells exhibited oval vesicular nuclei and fine chromatin.
• The findings confirmed a neoplastic proliferation of small round cells.

Implications:

• This case underscores the need for increased awareness of Ewing sarcoma in underrepresented demographics.
• It highlights the diagnostic process for this rare bone malignancy.
• Further research into the epidemiology and presentation of Ewing sarcoma in diverse populations is warranted.