Related Experiment Videos
Polymorphous low-grade adenocarcinoma in the lung: a case report
Victor K M Lee1, Brian C McCaughan, Richard A Scolyer
1Department of Anatomical Pathology, Singapore General Hospital, Singapore.
International Journal of Surgical Pathology
|August 13, 2004
Summary
Polymorphous low-grade adenocarcinoma (PLGA) is a rare salivary gland tumor. This study reports the first case of PLGA in the lung without a prior oral tumor, suggesting a potential primary lung origin.
Area of Science:
- Oncology
- Pathology
- Pulmonology
Background:
- Salivary gland-type tumors are uncommon primary lung neoplasms, potentially arising from bronchial tree glands.
- Polymorphous low-grade adenocarcinoma (PLGA) typically originates in oral minor salivary glands.
- Metastasis of PLGA to the lung is rare, with only two prior cases reported.
Observation:
- This report details a case of PLGA involving the lung in a patient lacking evidence of an oropharyngeal primary.
- The clinical and pathological features of this lung-based PLGA are described.
Findings:
- While potentially representing metastatic PLGA, this case is the first documented instance of PLGA in the lung without a history of a primary oral tumor.
- This finding raises the possibility of a primary lung origin for PLGA.
Implications:
- This case expands the known spectrum of salivary gland-type tumors in the lung.
- It suggests that PLGA should be considered in the differential diagnosis of lung tumors, even in the absence of an oral primary.
- Further research is warranted to elucidate the potential for primary PLGA of the lung.