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Microthymoma and microscopic thymomas associated with a thymic cyst without solid component

  • Tatsuo Furuya
  • Daishiro Kato
  • Sanae Yamazaki
  • Naoko Miyata
  • Hiroaki Tsunezuka
  • Satoru Okada
  • Junichi Shimada
  • Akio Yanagisawa
  • Masayoshi InoueEmail author
Case Report
  • 373 Downloads

Abstract

A 75-year-old asymptomatic man presented with an anterior mediastinal cyst without a solid component on computed tomography. Pathologic examination of the specimens obtained by thoracoscopic resection showed a thymic cyst with a 1.6-mm type A microthymoma in the surrounding thymic tissue. In addition, there were multiple hyperplastic nodules smaller than 1 mm histologically corresponded to microscopic thymomas. The patient underwent completion thymectomy through median sternotomy; thereafter, there was no residual thymic neoplasm detected. This was the first case report of a type A microthymoma. Microthymoma or microscopic thymoma could be present concomitantly with a thymic cyst without a solid component.

Keywords

Thymoma Thymic cyst Microthymoma 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.

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Copyright information

© The Japanese Association for Thoracic Surgery 2017

Authors and Affiliations

  • Tatsuo Furuya
    • 1
  • Daishiro Kato
    • 1
  • Sanae Yamazaki
    • 2
    • 3
  • Naoko Miyata
    • 1
  • Hiroaki Tsunezuka
    • 1
  • Satoru Okada
    • 1
  • Junichi Shimada
    • 1
  • Akio Yanagisawa
    • 2
  • Masayoshi Inoue
    • 1
    Email author
  1. 1.Division of Thoracic Surgery, Department of Surgery, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
  2. 2.Department of Surgical Pathology, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
  3. 3.Department of PathologySaiseikai Kawaguchi General HospitalSaitamaJapan

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