To analyze two cases of primary pulmonary FDCS and summarize their clinicopathological features, differential diagnosis, and research progress to enhance understanding among pathologists, ultimately improving diagnostic accuracy.
Key Findings:
Both patients presented with lung masses without evidence of metastasis or prior cancer history, highlighting the need for careful differential diagnosis.
Histological features included nest-like structures and diffuse patterns in tumor cells, often misdiagnosed as lung cancer, underscoring the importance of accurate identification.
FDC-specific markers were positively expressed in tumor cells, confirming the diagnosis of FDCS and differentiating it from other malignancies.
Both patients underwent surgery and adjuvant chemotherapy, showing no evidence of disease after follow-up, indicating a potentially favorable prognosis with appropriate treatment.
Interpretation:
Primary pulmonary FDCS is rare and can be misdiagnosed as lung cancer due to overlapping histological features; thus, increased awareness and the application of proper diagnostic techniques are crucial for accurate identification.
Limitations:
The study is based on only two cases, limiting generalizability and raising concerns about the robustness of findings.
Follow-up duration may not be sufficient to assess long-term outcomes, necessitating further studies with larger cohorts.
Conclusion:
Improved recognition and understanding of primary pulmonary FDCS among pathologists can reduce misdiagnosis and enhance patient management; implementing specific diagnostic strategies is essential.
