A case of adenocarcinoma in situ presenting as a solid nodule

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  • Tsuchiya Naoto
    Department of Thoracic Surgery, Niiza Shiki Central General Hospital
  • Miyajima Kuniharu
    Department of Thoracic Surgery, Niiza Shiki Central General Hospital Department of Surgery, Tokyo Medical University
  • Yoneyama Remi
    Department of Thoracic Surgery, Niiza Shiki Central General Hospital Department of Surgery, Tokyo Medical University
  • Kimura Masakazu
    Department of Thoracic Surgery, Niiza Shiki Central General Hospital
  • Kono Takahumi
    Department of Thoracic Surgery, Niiza Shiki Central General Hospital
  • Sakata Yoshinori
    Department of Surgery, Tokyo Medical University

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  • 結節状陰影を呈したAdenocarcinoma in situの1例

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<p>There is no consensus regarding limited surgery for small lung cancer, and clinical trials are currently ongoing. Adenocarcinoma in situ (AIS) has been reported to be associated with a good prognosis, with a 100% 5-year survival rate. The present case involved a patient in whom CT showed a ground glass opacity (GGO) lesion in right S1 of 10 mm. The lesion grew gradually each year, forming a partly solid nodule by year 3 and a solid nodule of 16 mm after 5 years; the patient was then referred to our hospital. We performed limited surgery for this patient. The pathological diagnosis was AIS, and now at 7 years since the surgery, recurrence has not been detected. We observed changes in the GGO lesion with time over 5 years, and suggest that AIS may appear as solid nodules on computed tomography and that limited resection is a possible treatment.</p>

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