Pulmonary Mucinous Cystic Tumor of Borderline Malignancy -A case of report-

폐의 저악성 점액성 낭종

  • Kang, Kyung-Min (Department of Thoracic and Cardiovascular Surgery, National Medical Center) ;
  • Lim, Yong-Taek (Department of Thoracic and Cardiovascular Surgery, National Medical Center) ;
  • Kim, Chul-Hwan (Department of Thoracic and Cardiovascular Surgery, National Medical Center) ;
  • Lee, Seob (Department of Thoracic and Cardiovascular Surgery, National Medical Center) ;
  • Hur, Yong (Department of Thoracic and Cardiovascular Surgery, National Medical Center) ;
  • Kim, Byung-Ryul (Department of Thoracic and Cardiovascular Surgery, National Medical Center) ;
  • Lee, Jung-Ho (Department of Thoracic and Cardiovascular Surgery, National Medical Center)
  • 강경민 (국립의료원 흉부외과) ;
  • 임용택 (국립의료원 흉부외과) ;
  • 김철환 (국립의료원 흉부외과) ;
  • 이섭 (국립의료원 흉부외과) ;
  • 허용 (국립의료원 흉부외과) ;
  • 김병열 (국립의료원 흉부외과) ;
  • 이정호 (국립의료원 흉부외과)
  • Published : 1998.02.01

Abstract

Pulmonary mucinous cystic tumor of borderline malignancy is very rare and distinguished from bronchogenic cyst or adenocarcinoma of bronchoalveolar type. We present the case of a 63-year-old woman with a right lower lobe mass, found by chest radiographs. The preoperative diagnosis was made as bronchoalveolar cancer by percutaneous needle aspiration of mass. Right lower lobectomy and lymph node dissections were performed. The lobectomy specimen contained variable sized multilocular cystic mucous masses, filled with mucus. Microscopically, the cystic masses are lined with tall columnar mucinous epithelium but some area contains focal cellular atypism and bronchoalveolar cancer like foci. This foci are lack of cellular atypism consistent with bronchoalveolar cancer cell. After lobectomy the patient has remained free from recurrence and distant metastasis for following 12 months period. Pulmonary mucinous cystic tumor of borderline malignancy appears to have a favorable prognosis and should be distinguished from other lung neoplasms.

폐의 저악성 점액성 낭종은 보고된 예가 매우 드물며 기관지성 낭종 및 뮤신을 분비하는 기관지폐포암 형태의 선암과 감별이 필요하다. 63 세의 여자환자로서 흉부단순촬영 사진에서 우측 폐하엽에서 종괴가 관찰되었다. 술전 경피생검상에서 기관지폐포암으로 진단되었고 우측 폐하엽 절제술 및 임파절 제거술을 시행하였다. 절제된 폐내에서 다양한 크기의 다발성 낭성 종괴들이 보였고 종괴내에는 점액으로 채워져 있었다. 현미경상에서 낭종은 키가 큰 주상구조의 점액성 상피세포들로 구성되어 있었고 한정된 일부분에서 기관지폐포암양 병소가 관찰되었으나 기관지폐포암과 비교하여 세포의 비정형성(atypism)은 부족하였다. 수술후 환자는 합병증없이 퇴원하였고 12개월 추적관찰에서 재발이나 원격전이 소견은 보이지 않았다. 폐의 저악성 점액성 낭종은 술후 예후가 상당히 좋은 것으로 보고 되고 있으며 폐에서 발생하는 다른 신생물과는 감별이 필요할 것이다.

Keywords

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