Clinicopathologic features of resected subcentimeter lung cancer

Hiroyuki Sakurai, Kazuo Nakagawa, Shun Ichi Watanabe, Hisao Asamura

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Background Subcentimeter lung cancers are still rare, and their pathobiologic behavior and management have not yet been fully clarified. Methods From 1993 through 2011, 291 patients with resected lung cancers 1.0 cm or less in diameter were studied regarding their clinicopathologic characteristics. According to appearance on high-resolution computed tomography (HRCT), the tumors were classified into four types: type 1 (n = 50), nonsolid ground-glass opacity (GGO) lesion; type 2 (n = 89), part-solid GGO lesion including 50% or more GGO within the lesion; type 3 (n = 62), part-solid GGO lesion including less than 50% GGO within the lesion, and type 4 (n = 90), solid lesion. Results Although none of types 1 to 3 tumors had lymph node metastases, these were found in 10% of type 4 tumors. Recurrence was observed in 13 patients, almost all of whom had type 4 tumors. The lone exception was a patient with a type 3 tumor in whom local recurrence developed on a surgical staple line. The 5-year overall survival rates were 100% in type 1 and type 2, 98% in type 3, and 88% in type 4. Type 4 had a significantly worse prognosis than the other types. Conclusions Subcentimeter lung cancers with a GGO component on HRCT (types 1 to 3) can be considered "early" lung cancers. In these cases, limited resection may be warranted to achieve a cure because they had no lymph node metastasis. By contrast, lobectomy should still be considered the standard operation of choice for type 4 tumors.

Original languageEnglish
Pages (from-to)1731-1738
Number of pages8
JournalAnnals of Thoracic Surgery
Volume99
Issue number5
DOIs
Publication statusPublished - 2015 May 1

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Glass
Lung Neoplasms
Neoplasms
Lymph Nodes
Tomography
Neoplasm Metastasis
Recurrence
Sutures
Survival Rate

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Surgery
  • Pulmonary and Respiratory Medicine
  • Medicine(all)

Cite this

Clinicopathologic features of resected subcentimeter lung cancer. / Sakurai, Hiroyuki; Nakagawa, Kazuo; Watanabe, Shun Ichi; Asamura, Hisao.

In: Annals of Thoracic Surgery, Vol. 99, No. 5, 01.05.2015, p. 1731-1738.

Research output: Contribution to journalArticle

Sakurai, Hiroyuki ; Nakagawa, Kazuo ; Watanabe, Shun Ichi ; Asamura, Hisao. / Clinicopathologic features of resected subcentimeter lung cancer. In: Annals of Thoracic Surgery. 2015 ; Vol. 99, No. 5. pp. 1731-1738.
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