A Pediatric Case of Transformed Mycosis Fungoides in a BRCA2 Positive Patient

Area of Science:

• Pediatric Oncology
• Dermatology
• Cancer Genetics

Background:

• Cutaneous T-cell lymphomas (CTCLs) are exceptionally rare in children.
• Mycosis fungoides is the most common CTCL in pediatric patients, but transformation to advanced stages is very uncommon.
• Clinical management guidelines for pediatric CTCLs are lacking.

Observation:

• Next-generation sequencing is increasingly used in pediatric oncology, potentially identifying germline mutations.
• The clinical significance of discovered germline mutations in pediatric cancers is not always clear.
• A unique case of transformed mycosis fungoides in a pediatric patient with a known BRCA2 mutation is presented.

Findings:

• The case highlights a rare instance of aggressive CTCL progression in a child.
• The presence of a BRCA2 mutation in this pediatric patient suggests a potential, though not fully elucidated, association with the disease.
• This case underscores the complexity of diagnosing and managing rare pediatric malignancies.

Implications:

• This case may inform future research into the genetic underpinnings of pediatric CTCLs.
• Further investigation is needed to understand the role of germline mutations like BRCA2 in pediatric mycosis fungoides.
• This report contributes to the limited literature on managing transformed mycosis fungoides in children.