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Challenges in DICER1-Associated Lung Disease
Kamal Masarweh1, Oz Mordechai2,3, Michal Gur1,3
1Pediatric Pulmonary Institute, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa 3109601, Israel.
Journal of Clinical Medicine
|March 11, 2023
Summary
Pleuropulmonary blastoma (PPB) is a rare childhood lung cancer with distinct stages. Early-stage PPB is treated with surgery, while advanced stages require chemotherapy, presenting diagnostic and therapeutic challenges.
Area of Science:
- Pediatric Oncology
- Thoracic Surgery
- Medical Genetics
Background:
- Pleuropulmonary blastoma (PPB) is the most common primary lung malignancy in children.
- PPB exhibits age-associated progression from cystic lesions (Type I) to high-grade sarcomas (Types II and III).
- A DICER1 germline mutation is identified in 70% of PPB cases.
Purpose of the Study:
- To present cases of pediatric Pleuropulmonary blastoma (PPB).
- To discuss the diagnostic, ethical, and therapeutic challenges associated with PPB.
- To highlight the importance of recognizing PPB in infants and young children.
Main Methods:
- Retrospective review of pediatric patients diagnosed with PPB.
- Analysis of clinical presentation, imaging, pathology, and treatment outcomes.
- Discussion of diagnostic difficulties, particularly differentiating from congenital pulmonary airway malformation (CPAM).
Main Results:
- PPB diagnosis in infants and young children presents significant challenges.
- Treatment strategies vary based on PPB type, with Type I amenable to resection and Types II/III requiring chemotherapy.
- Accurate diagnosis is crucial for appropriate management and prognosis.
Conclusions:
- Pleuropulmonary blastoma (PPB) requires a multidisciplinary approach for optimal management.
- Early and accurate diagnosis, despite imaging similarities to CPAM, is critical.
- Understanding the DICER1 mutation and disease progression aids in therapeutic decision-making.
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