1. Int J Surg Pathol. 2002 Apr;10(2):147. Images in pathology. Infarcted thymoma. Kuo TT(1). Author information: (1)Department of Pathology Chang Gung Memorial Hospital, Taipei, Taiwan. PMID: 12075408 [Indexed for MEDLINE]

Thymomas and thymic carcinomas (TC) are rare epithelial tumors of the thymus. Although most thymomas have organotypic features (i.e., resemble the normal thymus), TC are morphologically undistinguishable from carcinomas in other organs. Apart from their different morphology, TC and thymomas differ a …

Se hela listan på surgpathcriteria.stanford.edu Se hela listan på librepathology.org Type AB Thymoma Type B3 Thymoma; Predominantly spindle cells: Predominantly polygonal cells: Lacks any epidermoid features: Frequently has epidermoid differentiation (but lacks overt keratinization and bridges) Frequent glandular structures lined by cuboidal to flat cells: Frequent perivascular spaces surrounded by palisaded epithelial cells Thymus attains its greatest weight in relation to body weight before birth (15 g) Has critical role in development of cell mediated immunity and T cell differentiation. Grows until puberty, then involutes and undergoes fatty replacement, although still present in adult prepericardial or retrocarinal fat. Immunohistochemistry of Thymoma, [Pathology] Atlas of Immunohistochemistry of Thymoma, Atlas of Mediastinal Pathology The diagnosis of thymomas is mainly predicated on identifying their characteristic features on routine microscopy using hematoxylin and eosin (H&E)-stained tissue sections. 2021-03-02 · Visual survey of surgical pathology with 11065 high-quality images of benign and malignant neoplasms & related entities. Thymomas - General Focused Thymomas - General with stained slides of pathology.

This website is intended for pathologists and laboratory personnel but not for patients. Se hela listan på surgpathcriteria.stanford.edu Immunohistochemistry of Thymoma, [Pathology] Atlas of Immunohistochemistry of Thymoma, Atlas of Mediastinal Pathology The diagnosis of thymomas is mainly predicated on identifying their characteristic features on routine microscopy using hematoxylin and eosin (H&E)-stained tissue sections. Se hela listan på surgpathcriteria.stanford.edu Composed of epithelial cells (endoderm, important for T lymphocyte differentiation), Hassall corpuscles (regressed epithelial cells), T cells of varying phenotypes; B cells in thymic medulla and thymic perivascular space (increase with age, Hum Pathol 2001;32:926); also interdigitating reticulum cells, Langerhans cells, mast cells, eosinophils, stromal cells 2021-03-02 · WebPathology is a free educational resource with 11065 high quality pathology images of benign and malignant neoplasms and related entities. 2021-03-02 · Visual survey of surgical pathology with 11065 high-quality images of benign and malignant neoplasms & related entities. Thymoma : Type B2 Focused Thymoma : Type B2 with stained slides of pathology.

PathologyOutlines.com, a free, updated outline of surgical and clinical pathology resources with jobs, conferences, fellowships, books and links to journal articles, gross and microscopic images for physicians and the pathologist community.

Suster S. Thymic carcinoma: update of current diagnostic criteria and histologic types. Neoplasms of the thymus Thymomas and thymic carcinomas are thymic epithelial tumors that constitute approximately 15% of all mediastinal masses.

10 Jun 2020 of preexisting spindle cell thymoma (Am J Surg Pathol 1999;23:691) tumor arising in metaplastic thymoma (Histopathology 2008;52:409)

Physicians describe thymomas in terms of their degree of spread. Most thymomas have the potential to behave like a cancer and spread beyond the thymus, but many appear to behave in a benign fashion and are noninvasive. Cystic degeneration in thymoma is a relatively frequent but focal event. In rare cases, the process proceeds to the extent that most or all of the lesion becomes cystic. The authors studied ten cases of thymoma undergoing cystic degeneration of such degree that the lesions initially were mistaken gr … Teratoma, embryonal carcinoma and choriocarcinoma have distinctive histologic patterns that should not be confused with thymic carcinoma Keratin is not useful for the distinctions as all are positive Seminoma is usually faint and focal SALL4 (all germ cell tumors) and OCT3/4 (seminoma and embryonal carcinoma) are quite useful Visual survey of surgical pathology with 11065 high-quality images of benign and malignant neoplasms & related entities. Thymoma : Type B2 Focused Thymoma : Type B2 with stained slides of pathology.

Suster S, Moran CA. Thymoma classification current status and future trends. Am J Clin Pathol. 2006;125(4):542-54. 8 Marx A et al. Thymoma is found in 15% of patients with myasthenia gravis.
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WebPathology is a free educational resource with 11065 high quality pathology images of benign and malignant neoplasms and related entities.

Normal persistent thymus.
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Thymoma. Author: Anja C. Roden, M.D. Editor-in-Chief: Debra L. Zynger, M.D. Topic Completed: 7 January 2020. Minor changes: 15 March 2021. Copyright: 2003-2021, PathologyOutlines.com, Inc. PubMed Search: Thymoma mediastinum [TI] pathology. Page views in 2020: 31,039. Page views in 2021 to date: 12,522.

Two basic cell types of thymomas: WHO type A thymoma composed of oval to spindle cells with dispersed chromatin and scant rim of amphophilic cytoplasm. Thymomas and thymic carcinomas (TC) are rare epithelial tumors of the thymus. Although most thymomas have organotypic features (i.e., resemble the normal thymus), TC are morphologically undistinguishable from carcinomas in other organs.