mediastinal


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Related to mediastinal: mediastinal emphysema, mediastinal lymphoma

mediastinal

 [me″de-as-ti´n´l]
of or pertaining to the mediastinum.
mediastinal flutter movement of the tissues and organs of the mediastinum back and forth with each movement of air into and out of an open sucking wound in the thoracic cavity. The condition can produce serious impairment of cardiopulmonary function and is fatal if not treated promptly. Symptoms are similar to those of mediastinal shift.
mediastinal shift a shifting or moving of the tissues and organs that comprise the mediastinum (heart, great vessels, trachea, and esophagus) to one side of the chest cavity. The condition occurs when a severe injury to the chest causes the entrapment of air in the pleural space (tension pneumothorax). As the volume of air increases on the affected side, the lung collapses and the organs and tissues of the mediastinum are crowded to the opposite side of the chest. This can produce compression of the other lung and kinking or twisting of one or more of the great blood vessels, which in turn seriously impairs blood flow to and from the heart.

Symptoms of mediastinal shift include severe dyspnea, cyanosis, displacement of the trachea to one side, and distended neck veins. The immediate treatment is insertion of a hollow needle or trocar into the pleural space (thoracentesis) to provide an outlet for the escape of air and fluid. After the trapped air is released, closed chest drainage is initiated to allow for reexpansion of the lung.
Mediastinal shift. As air from a pneumothorax is drawn into the chest cavity, it places pressure on the trachea, heart, and great vessels, causing them to shift from their normal anatomic positions. From Polaski and Tatro, 1996.

me·di·as·ti·nal

(mē'dē-as-tī'năl),
Relating to the mediastinum.

mediastinal

/me·di·as·ti·nal/ (-as-ti´n'l) of or pertaining to the mediastinum.

mediastinal

[mē′dē·əstī′nəl]
Etymology: L, mediastinus, midway
pertaining to a median septum or space between two parts of the body, such as the interval between the pleural sacs.

mediastinal

adjective Referring to the mediastinum.

me·di·as·ti·nal

(mē'dē-ă-stī'năl)
Relating to the mediastinum.

mediastinal

of or pertaining to the mediastinum.

mediastinal abscess
an abscess that causes systemic signs of toxemia and fever but also severe pain with each inspiration, causing grunting as in pleurisy but without the auscultatory findings of pleurisy.
mediastinal cyst
remnants of branchial pouches may be found in the anterior mediastinum, particularly in brachycephalic dogs; bronchogenic cysts are found in the posterior mediastinum.
mediastinal emphysema
mediastinal flutter
movement of the tissues and organs of the mediastinum back and forth with each movement of air in and out of an open sucking wound in the thoracic cavity. The condition can produce serious impairment of cardiopulmonary function and is fatal if not treated promptly. Signs are similar to those of mediastinal shift (see below).
mediastinal lymph node enlargement
a condition due to abscess formation or neoplastic growth which may cause obstruction to the esophagus and dysphagia, or to the bronchi, causing inspiratory dyspnea. If it is in the anterior chest and of considerable size, it may mimic congestive heart failure, with jugular vein engorgement and edema of the brisket.
mediastinal neoplasm
characterized by progressive weight loss, reduced exercise tolerance, dyspnea, hydrothorax, areas of dullness on auscultation or percussion over lungs, neoplastic cells in pleural fluid if lesion intrudes into pleural cavity.
mediastinal shift
a shifting or moving of the tissues and organs that comprise the mediastinum (heart, great vessels, trachea and esophagus) to one side of the chest cavity. The condition occurs when a severe injury to the chest causes the entrapment of air in the pleural space (tension pneumothorax). As the volume of air increases on the affected side, the lung collapses and the organs and tissues of the mediastinum are crowded to the opposite side of the chest. This can produce compression of the other lung and kinking or twisting of one or more of the great blood vessels, which in turn seriously impairs blood flow to and from the heart.
mediastinal testis
a partial septum of the testis that contains the rete testis.
References in periodicals archive ?
Shaw JA, Irusen EM, von Groote-Bidlingmaier F, et al Integrated positron emission tomography/ computed tomography for evaluation of mediastinal lymph node staging of non-small-cell lung cancer in a tuberculosis-endemic area: A 5-year prospective observational study.
Retroperitoneal perforation in ulcerative colitis with mediastinal and subcutaneous emphysema.
To our knowledge, only one case has been reported with the presence of both anthracosis and TB in the same mediastinal LAP nodules.
In male patients, tumor markers are of additional benefit, because the discovery of a mediastinal germ cell tumor or an elevated tumor marker warrants a physical exam and ultrasound of the scrotum to rule out the presence of gonadal germ cell tumors.
There was no mediastinal lymphadenopathy, nor any history of chest trauma.
11) Differentials of fat-containing mediastinal lesions are lipoma, liposarcoma, mediastinal lipomatosis, teratoma, diaphragmatic hernias, extramedullary erythropoiesis, lipoid pneumonia, lipoblastoma and cardiac liposarcomas.
The rest of the patients (n=13) had metastatic mediastinal lymphadenopathy, advanced thyroid and oesophageal carcinoma evident on thoracic CT scans performed during the ICU admission.
On thoracal computarized tomography (CT), a cystic lesion with a relatively thick wall including microcysts in the lower part and air-fluid level was observed in the left hemithorax causing shifting of the middle line and mediastinal structures towards the right side.
There were no evidence of cervical or mediastinal lymphadenopathy.
The authors conducted a follow-up study of the association between mediastinal irradiation, chemotherapy, and mortality from coronary artery disease in 4665 patients treated for Hodgkin's disease.
Herein we report a rare case of solitary mediastinal plasmacytoma with reactive pleural effusion.
Pnomoni tanisi ile 6 aydir antibiyotikle tedavi edilen ve yanit alinamayan 48 yasindaki kadin hasta cekilen toraks bilgisayarli tomografide (BT) mediastinal lenf nodu (MLN) saptanmasi Ozerine biyopsi icin klinigimize bavurdu.