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Updated: Jul 6, 2026
10:10
Robotic Duodenum-preserving Total Pancreatic Head Resection for Intraductal Papillary Mucinous Neoplasms
Published on: April 17, 2026
Primary pulmonary mucinous (colloid) adenocarcinoma
Ryo Maeda1, Noritaka Isowa, Hideyuki Onuma
1Division of Thoracic Surgery, Matsue Red Cross Hospital, 200 Horomachi, Matsue, Shimane, 690-8506, Japan. ryomaedamatsue@yahoo.co.jp
General Thoracic and Cardiovascular Surgery
|April 11, 2008
Summary
A rare case of primary pulmonary mucinous adenocarcinoma, a gelatinous lung tumor, was diagnosed in an elderly man. Surgical resection confirmed the diagnosis of this slow-growing lung cancer.
Area of Science:
- Pulmonology
- Oncology
- Pathology
Background:
- Primary pulmonary mucinous (colloid) adenocarcinoma (MC) is a rare subtype of lung cancer.
- This case highlights the diagnostic challenges and slow-growing nature of MC.
Observation:
- A 79-year-old man presented with a slowly enlarging, well-defined nodule in the right upper lobe detected via CT scan.
- The nodule increased from 1.7 cm to 2.0 cm over 12 months.
Findings:
- Video-assisted thoracoscopic surgery (VATS) enabled wedge resection for diagnosis.
- Macroscopic examination revealed a well-demarcated nodule filled with a gelatinous substance.
- Histopathological analysis confirmed the diagnosis of primary pulmonary mucinous adenocarcinoma.
Implications:
- This case underscores the importance of vigilant monitoring for slow-growing pulmonary nodules.
- Early surgical intervention can lead to definitive diagnosis and treatment of rare lung cancers.
- Understanding the characteristics of MC aids in differential diagnosis and patient management.
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