What question did this study set out to answer?

To describe the clinical and genetic characteristics of a rare case of signet-ring cell carcinoma in a child without detectable genetic predisposition.

March 29, 2026Pediatric Blood & Cancer

Poorly Differentiated Signet‐Ring Cell Gastroesophageal Carcinoma in a Child With No Detectable Genetic Predisposition: Report of a Rare and Highly Aggressive Tumor

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To describe the clinical and genetic characteristics of a rare case of signet-ring cell carcinoma in a child without detectable genetic predisposition.
Clinical and imaging assessments of a 9-year-old female patient
Histological examination of tumor and immunostaining
Whole-exome sequencing for genetic analysis
Treatment with modified FOLFOX6 and nivolumab
Investigation of claudin-targeted therapies
The patient showed significant progression of respiratory issues and metastatic disease despite treatment
Initial treatment resulted in marked reduction of tumor mass, but patient succumbed within four months
No detectable pathogenic genetic abnormalities were found in germline testing
Strong expression of CLDN18.2 suggests potential responsiveness to targeted therapies.

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Implication

A unique case reports the clinical characteristics and treatment outcomes of gastroesophageal cancer in a child, indicating potential for tailored adult protocols.

Cite This Study

Bakkar et al. (2026) studied this question.

synapsesocial.com/papers/69c8c2e4de0f0f753b39d644 https://doi.org/10.1002/1545-5017.70277

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Implication

A unique case reports the clinical characteristics and treatment outcomes of gastroesophageal cancer in a child, indicating potential for tailored adult protocols.

Poorly Differentiated Signet‐Ring Cell Gastroesophageal Carcinoma in a Child With No Detectable Genetic Predisposition: Report of a Rare and Highly Aggressive Tumor

Key Points

Discussion

Implication

Cite This Study

Poorly Differentiated Signet‐Ring Cell Gastroesophageal Carcinoma in a Child With No Detectable Genetic Predisposition: Report of a Rare and Highly Aggressive Tumor

Key Points

Discussion

Implication

Cite This Study