thymoma

A neoplasm in the anterior mediastinum, originating from thymic tissue, usually benign, and frequently encapsulated; occasionally invasive, but metastases are rare; histologically, consists of any type of thymic epithelial cell as well as lymphocytes that are usually abundant. Malignant lymphoma that involves the thymus, e.g., Hodgkin disease, should not be regarded as t.. [thymus + G. -oma, tumor]

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thy·mo·ma thī-'mō-mə n, pl -mas also -ma·ta -mət-ə a tumor that arises from the tissue elements of the thymus

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n.
a benign or malignant tumour of the thymus. It is sometimes associated with myasthenia gravis, a chronic disease in which muscles tire easily. Surgical removal of the tumour may result in improvement of the muscle condition, but the response is often slow.

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thy·mo·ma (thi-moґmə) [thymo-1 + -oma] a tumor derived from the epithelial or lymphoid elements of the thymus.

Medical dictionary. 2011.

Look at other dictionaries:

  • Thymoma — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 13067 ICD10 = C37.9, D60 ICD9 = ICD9|164.0, ICD9|212.6 ICDO = 8580 OMIM = MedlinePlus = 001086 eMedicineSubj = med eMedicineTopic = 2752 eMedicine mult = eMedicine2|med|3448… …   Wikipedia

  • thymoma — A tumour of thymic origin …   Dictionary of molecular biology

  • thymoma — thy·mo·ma (thī mōʹmə) n. A usually benign tumor of the thymus, composed of epithelial and lymphoid cells. * * * …   Universalium

  • thymoma — noun Any tumour of the thymus …   Wiktionary

  • thymoma — thy·mo·ma …   English syllables

  • thymoma — n. a benign or malignant tumour of the thymus. It is sometimes associated with myasthenia gravis, a chronic disease in which muscles tire easily. Surgical removal of the tumour may result in improvement of the muscle condition, but the response… …   The new mediacal dictionary

  • thymoma — A tumor of the thymus, an organ that is part of the lymphatic system and is located in the chest, behind the breastbone …   English dictionary of cancer terms

  • thymoma — …   Useful english dictionary

  • immunodeficiency with thymoma — an immunodeficiency disorder in which thymoma, usually of the benign spindle cell type, is associated with hypogammaglobulinemia; deficiencies of cell mediated immunity, such as eosinopenia, hypoplastic or aplastic anemia, or autoimmune diseases …   Medical dictionary

  • Тимома (Thymoma) — доброкачественная или злокачественная опухоль тимуса. Иногда образование этой опухоли сопровождается развитием тяжелой псевдопаралитической миастении хронического заболевания, при котором мышцы легко начинают рваться. Хирургическое удаление… …   Медицинские термины

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