J Korean Radiol Soc.  1999 Jun;40(6):1141-1145. 10.3348/jkrs.1999.40.6.1141.

Mucinous and Nonmucinous Type of Bronchioloal veolar Carcinoma: Difference in CT Findings

• Seo HS
• Kang EY
• Rhee JY
• Yong HS
• Suh SI
• Kim CJ
• Kim HK
• Oh YW

• KMID: 2200938
• DOI: http://doi.org/10.3348/jkrs.1999.40.6.1141

Abstract

PURPOSE: To search for CT findings which helpfully differentiate mucinous from nonmucinousbronchi-oloalveolar carcinoma and to assess the difference in stages between the two types of tumors. Twenty-two patients with pathologically proven bronchioloalveolar carcinoma (BAC) were included inthis study. On the basis of CT findings, tumors were classified as either solitary or multiple and as eithermass/nodule, consolidation, or mixed type. CT stages of the tumors were determined by two radiologists andconclusions were reached by consensus.
RESULTS
Twelve patients had nonmucinous BACs and ten had mucinous BACs.Among the ten cases of mucinous BAC, six were solitary and four were multiple. These were mass/nodule (n=3),consolidation (n=5), and mixed pattern (n=2). In contrast, among the twelve cases of nonmucinous BAC, six weresolitary and six were multiple. All were mass/nodule, except for one mixed type. Among the mucinous BACs, threewere operable and seven (above stage IIIa) were inoperable. Among the nonmucinous BACs, four were operable andeight were inoperable.
CONCLUSION
Consolidation was more common in mucinous BAC and mass/nodule was more commonin non-mucinous BAC (p<0.05). There was no difference in tumor stages between mucinous and nonmucinous types ofBAC (p>0.05).

Keyword

Lung neoplasms, CT; Lung neoplasms, diagnosis; Lung neoplasms, staging

MeSH Terms

Adenocarcinoma, Bronchiolo-Alveolar
Consensus
Humans
Mucins*
Mucins