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Related Experiment Videos

[Mediastinal lymph-node carcinoma with no apparent primary lesion]

Y Masaki1, M Gomibuchi, S Tanaka

  • 1Department of Thoracic and Cardiovascular Surgery, Nippon Medical Chiba Hokuso Hospital, Inba, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|August 1, 1997
PubMed
Summary

This study identified 36 cases of unknown primary cancer in hilar or mediastinal lymph nodes. Researchers propose "primary mediastinal lymph-node carcinoma" for these enigmatic cases.

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Investigation of coronary artery bypass grafting for a patient with myelodysplastic syndrome.

Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia·2001
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[A case of mediastinal lymphangioma with chylothorax and chylopericardium].

Nihon Ika Daigaku zasshi·1999

Area of Science:

  • Oncology
  • Pathology

Context:

  • Hilar and mediastinal lymph node malignancies often present without an identifiable primary tumor.
  • Investigating these cases is crucial for accurate diagnosis and treatment.

Purpose:

  • To characterize clinical features of lymph node cancers where the primary lesion is undetected.
  • To propose a new classification for these specific malignancies.

Summary:

  • Analyzed 36 cases (29 men, 7 women; average age 58.4) with hilar/mediastinal lymph node cancer, primary lesion unknown.
  • Malignancies included adenocarcinoma, squamous-cell, and small-cell carcinoma, located in hilar, mediastinal, or both lymph node regions.
  • Average cancer-free survival post-surgery was 28.9 months (max 9 years).

Impact:

Related Experiment Videos

  • Suggests that many cases of presumed metastatic cancer with an occult primary lesion may actually be primary lymph node cancers.
  • Proposes the term "primary mediastinal lymph-node carcinoma" to describe this distinct clinical entity.
  • Highlights the need for considering primary lymph node origin in specific thoracic malignancies.