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PubMed2002

Cytopathology-histopathology of the mediastinum: epithelial, lymphoproliferative, and germ cell neoplasms.

The last several years have witnessed an increase in reports regarding the pathology and classification of mediastinal neoplasms that heretofore have received relatively scant attention in comparison to tumors from other anatomic locations. Some of these, such as thymoma, remain controversial and contentious subjects. The sampling and diagnosis of mediastinal tumors using the technique of fine-needle aspiration biopsy has not gained acceptance among radiologists, surgeons, and pathologists to the degree it has for tumors of the thyroid or breast. Thus, the literature regarding aspiration cytopathology of mediastinal neoplasms is extremely limited. This report focuses on the salient cytopathologic features of epithelial, lymphoid, and germ cell tumors of the mediastinum and correlates the cytomorphology with their histologic equivalent.

Biopsy, Needle↗
PubMed1998

Metastatic carcinoma of the prostate mimicking primary carcinoid tumor of the lung and mediastinum.

Although prostatic carcinomas rarely present as intrathoracic metastases, they may occasionally exhibit clinical and radiographic findings suggestive of a primary pulmonary carcinoid, particularly when they have a cribriform pattern. This report describes three patients who presented with lung and mediastinal neoplasms initially diagnosed as primary carcinoid tumors. These tumors were later proven to be metastatic prostate carcinoma by the use of immunohistochemical studies, including stains for chromogranin, carcinoembryogenic antigen and prostate specific antigen. These findings emphasize the importance of considering metastatic prostate adenocarcinoma in the differential diagnosis of carcinoid or neuroendocrine carcinoma with a cribriform pattern.

Adenocarcinoma↗
PubMed1992

Usefulness of transesophageal echocardiography in evaluation of paracardiac neoplastic masses.

Mediastinal paracardiac tumors may cause both cardiovascular complications and problems in differential diagnosis of cardiac diseases. Transesophageal echocardiography (TEE) may give an additional new window to mediastinal neoplasms, but only a few studies have been reported. TEE was performed in 70 patients with paracardiac neoplastic masses. The procedure was indicated to solve particular clinical problems in 20 patients, and as a prospective study on 50 unselected patients with mediastinal neoplasms. Twenty-three patients underwent follow-up studies; a total of 101 echocardiograms were recorded. The procedure was tolerated well or very well by most patients, and provided additional anatomic or hemodynamic data in every patient in group a and in 45 of 50 in group b. The additional data were relevant for clinical management in 14 of 20 patients in group a, and in 3 of 45 in group b. Based on the results of this study, TEE is useful in association with other radiologic techniques in patients with paracardiac neoplasms. As an imaging technique, it may represent a reliable alternative to computed tomography whenever the latter is not feasible.

Adolescent↗
PubMed1994

Benign hematologic neoplasm associated with mediastinal mature teratoma in a patient with Klinefelter's syndrome: a case report.

An 18-year-old male with Klinefelter's syndrome presented with a mature teratoma of the mediastinum. He was treated with debulking surgery and brief cisplatin-based chemotherapy. Ten years later, he presented with paraplegia and was found to have an isolated epidural mass. The mass was composed of mature histiocytoid cells reminiscent of those seen in malignant histiocytosis. There was no evidence of medullary dissemination and there was no evidence of recurrence of the germ cell tumor. He received local radiation therapy and a single course of leukemic induction. He remains well 4 years later. This case represents a localized variant of the diffuse histiocytic malignancies associated with malignant mediastinal germ cell tumors.

Adolescent↗
PubMed1995

Intrathoracic neoplasms other than bronchogenic carcinoma.

Intrathoracic neoplasms other than lung cancer represent a diverse group of diseases. This review focuses on the recent literature addressing mediastinal neoplasms, unusual primary lung neoplasms, and pulmonary metastases from other locations. Advances in classification, imaging, diagnosis, surgical issues, and treatment issues shown in case series and individual case reports are presented and discussed.

Carcinoma, Bronchogenic↗
PubMed1979

[Roentgen signs of rare mediastinal masses (author's transl)].

Mediastinal masses are commonly classified into lesions of the anterior, middle, and posterior compartment as a first step in differential diagnosis. Teratoma, neurogenic tumors, goiters, and thymoma with their characteristic localization constitute together already two thirds of all mediastinal neoplasms. However, the differential diagnosis of mediastinal masses should include also rare diseases: lymphangio-hemangioma, aneurysm of the pulmonal artery, intrathoracic meningocele, esophageal cyst, and pleurobronchial cyst are demonstrated. It is emphasized, that differential diagnosis has to consider history and physical data of the patient as well.

Aneurysm↗
PubMed1997

Intrathoracic neoplasms other than bronchogenic carcinoma.

Intrathoracic neoplasms other than bronchogenic carcinoma comprise a disparate group of tumors that have in common an anatomic location within the thorax. For the purposes of this review, they are divided into three categories: pulmonary metastases from locations other than the thorax, mediastinal neoplasms, and unusual primary lung neoplasms. This article reviews the recent literature; discusses evolving strategies for imaging, diagnosis, and treatment; and presents promising research developments.

Adult↗