Definition of mediastinum in English:

mediastinum

nounPlural mediastina ˌmiːdɪəˈstʌɪnəmˌmidiəˈstaɪnəm

Anatomy

A membranous partition between two body cavities or two parts of an organ, especially that between the lungs.
Example sentencesExamples
- The left main bronchus was exposed at the posterior mediastinum and separated from connective tissue.
- A peritoneal sac protrudes through the hiatus into the mediastinum next to the esophagus.
- The most common sites of tumor metastases are the lymph nodes in the mediastinum.
- On the lateral radiograph there appeared to be herniation of the left lung through the anterior mediastinum.
- The tumor, which is often but not always associated with cystic lung lesions, may arise in pulmonary parenchyma, the mediastinum, and pleura.

Derivatives

mediastinal

adjective ˌmiːdɪəsˈtʌɪn(ə)lˌmidiəˈstaɪnl

Anatomy

All men with mediastinal lung masses require a careful testicular examination.
Example sentencesExamples
- In addition, she had a mediastinal lymph node dissection.
- One patient had extensive cervical, posterior mediastinal, and abdominal lymphadenopathy.
- A single enlarged anterior mediastinal lymph node was also identified.
- Two patients presented with masses in the upper lobe of the right lung, simulating posterior mediastinal tumors.

Origin

Late Middle English: neuter of medieval Latin mediastinus 'medial', based on Latin medius 'middle'.

Definition of mediastinum in US English:

mediastinum

nounˌmidiəˈstaɪnəmˌmēdēəˈstīnəm

Anatomy

A membranous partition between two body cavities or two parts of an organ, especially that between the lungs.
Example sentencesExamples
- On the lateral radiograph there appeared to be herniation of the left lung through the anterior mediastinum.
- The tumor, which is often but not always associated with cystic lung lesions, may arise in pulmonary parenchyma, the mediastinum, and pleura.
- The left main bronchus was exposed at the posterior mediastinum and separated from connective tissue.
- A peritoneal sac protrudes through the hiatus into the mediastinum next to the esophagus.
- The most common sites of tumor metastases are the lymph nodes in the mediastinum.

Origin

Late Middle English: neuter of medieval Latin mediastinus ‘medial’, based on Latin medius ‘middle’.

单词	mediastinum
释义	Definition of mediastinum in English: mediastinum nounPlural mediastina ˌmiːdɪəˈstʌɪnəmˌmidiəˈstaɪnəm Anatomy A membranous partition between two body cavities or two parts of an organ, especially that between the lungs. Example sentencesExamples The left main bronchus was exposed at the posterior mediastinum and separated from connective tissue. A peritoneal sac protrudes through the hiatus into the mediastinum next to the esophagus. The most common sites of tumor metastases are the lymph nodes in the mediastinum. On the lateral radiograph there appeared to be herniation of the left lung through the anterior mediastinum. The tumor, which is often but not always associated with cystic lung lesions, may arise in pulmonary parenchyma, the mediastinum, and pleura. Derivatives mediastinal adjective ˌmiːdɪəsˈtʌɪn(ə)lˌmidiəˈstaɪnl Anatomy All men with mediastinal lung masses require a careful testicular examination. Example sentencesExamples In addition, she had a mediastinal lymph node dissection. One patient had extensive cervical, posterior mediastinal, and abdominal lymphadenopathy. A single enlarged anterior mediastinal lymph node was also identified. Two patients presented with masses in the upper lobe of the right lung, simulating posterior mediastinal tumors. Origin Late Middle English: neuter of medieval Latin mediastinus 'medial', based on Latin medius 'middle'. Definition of mediastinum in US English: mediastinum nounˌmidiəˈstaɪnəmˌmēdēəˈstīnəm Anatomy A membranous partition between two body cavities or two parts of an organ, especially that between the lungs. Example sentencesExamples On the lateral radiograph there appeared to be herniation of the left lung through the anterior mediastinum. The tumor, which is often but not always associated with cystic lung lesions, may arise in pulmonary parenchyma, the mediastinum, and pleura. The left main bronchus was exposed at the posterior mediastinum and separated from connective tissue. A peritoneal sac protrudes through the hiatus into the mediastinum next to the esophagus. The most common sites of tumor metastases are the lymph nodes in the mediastinum. Origin Late Middle English: neuter of medieval Latin mediastinus ‘medial’, based on Latin medius ‘middle’.
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