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Large Paraganglioma of the Abdominal Cavity: A Case Report and Review of the Literature.

Summary of "Large Paraganglioma of the Abdominal Cavity: A Case Report and Review of the Literature."

Background: Paragangliomas are rare tumors that derive from cells of the autonomic nervous system. They are usually located in the neck, i.e. arising from the glomus caroticum or glomus jugulare, but may also be located in the mediastinum and abdominal cavity arising from other ganglia. Paraganglioma located in the adrenal gland are called pheochromocytoma. Case Report: We report a case of an oligosymptomatic 50-year-old man presenting with a large intraabdominal tumor mass measuring 24 x 22 x 12 cm. Core needle biopsy revealed a tumor of mesenchymal origin with no clear-line differentiation, so the highly vascularized tumor was resected after embolization of the tumor vessels. Histology revealed epithelioid cells with expression of CD68 and CD10 but no expression of Pan-CK, CD30, or CD45. Ki67 staining was 20%. Lymphangiosis and angioinvasion were demonstrated. Differential diagnosis included histiocytic sarcoma and c-kit-negative gastrointestinal stromal tumor; the final diagnosis was paraganglioma. The 6-month follow-up showed no evidence of recurrence. Conclusions: Paraganglioma is a rare disease and should be considered in the differential diagnosis of abdominal masses. To our knowledge, this report is of the largest paraganglioma that has been described in the literature so far. Nomenclature, pathogenesis, and treatment options are discussed.

Affiliation

Department of Hematology and Oncology, Charité Campus Virchow Klinik, Universitätsmedizin Berlin, Germany.

Journal Details

This article was published in the following journal.

Name: Onkologie
ISSN: 1423-0240
Pages: 377-380

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Medical and Biotech [MESH] Definitions

An article or book published after examination of published material on a subject. It may be comprehensive to various degrees and the time range of material scrutinized may be broad or narrow, but the reviews most often desired are reviews of the current literature. The textual material examined may be equally broad and can encompass, in medicine specifically, clinical material as well as experimental research or case reports. State-of-the-art reviews tend to address more current matters. A review of the literature must be differentiated from HISTORICAL ARTICLE on the same subject, but a review of historical literature is also within the scope of this publication type.

Published materials which provide an examination of recent or current literature. Review articles can cover a wide range of subject matter at various levels of completeness and comprehensiveness based on analyses of literature that may include research findings. The review may reflect the state of the art. It also includes reviews as a literary form.

INFLAMMATION of the PERITONEUM lining the ABDOMINAL CAVITY as the result of infectious, autoimmune, or chemical processes. Primary peritonitis is due to infection of the PERITONEAL CAVITY via hematogenous or lymphatic spread and without intra-abdominal source. Secondary peritonitis arises from the ABDOMINAL CAVITY itself through RUPTURE or ABSCESS of intra-abdominal organs.

The region in the abdomen extending from the thoracic DIAPHRAGM to the plane of the superior pelvic aperture (pelvic inlet). The abdominal cavity contains the PERITONEUM and abdominal VISCERA, as well as the extraperitoneal space which includes the RETROPERITONEAL SPACE.

The non-susceptibility to infection of a large group of individuals in a population. A variety of factors can be responsible for herd immunity and this gives rise to the different definitions used in the literature. Most commonly, herd immunity refers to the case when, if most of the population is immune, infection of a single individual will not cause an epidemic. Also, in such immunized populations, susceptible individuals are not likely to become infected. Herd immunity can also refer to the case when unprotected individuals fail to contract a disease because the infecting organism has been banished from the population.

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