The sarcoid granuloma: ‘epithelioid’ or ‘lymphocytic-epithelioid’ granuloma?

<p>Abstract</p> <p>Background</p> <p>This study aims to analyze the structure and quantities of cellular elements in sarcoid granulomas.</p> <p>Methods</p> <p>We investigated 34 transbronchial lung biopsy samples obtained from 34 sarcoid patients...

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Main Authors: Kosjerina Zdravko, Zaric Bojan, Vuckovic Dejan, Lalosevic Dusan, Djenadic Goran, Murer Bruno
Format: Article
Language:English
Published: Mattioli 1885 2012-06-01
Series:Multidisciplinary Respiratory Medicine
Subjects:
Online Access:http://www.mrmjournal.com/content/7/1/11
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author Kosjerina Zdravko
Zaric Bojan
Vuckovic Dejan
Lalosevic Dusan
Djenadic Goran
Murer Bruno
author_facet Kosjerina Zdravko
Zaric Bojan
Vuckovic Dejan
Lalosevic Dusan
Djenadic Goran
Murer Bruno
author_sort Kosjerina Zdravko
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>This study aims to analyze the structure and quantities of cellular elements in sarcoid granulomas.</p> <p>Methods</p> <p>We investigated 34 transbronchial lung biopsy samples obtained from 34 sarcoid patients. The quantity and composition of the cellular elements inside a granuloma were determined by the quantitative stereometry method, employing the numerical density as a stereological method.</p> <p>Results</p> <p>A total of 102 sarcoid granulomas were analyzed. The central part of all granulomas was occupied by epithelioid cells. Besides these, giant cells, lymphocytes, macrophages and plasma cells were also seen. The mean numerical density of all the cells in the central part of a sarcoid granuloma was 111,751 mm<sup>-3.</sup> Lymphocytes prevailed in number, exceeding the total count of all other cells. With a mean numerical density of 74,321 mm<sup>-3</sup>, lymphocytes were twice as numerous as both epithelioid cells and macrophages with a mean numerical density of 37,193 mm<sup>-3</sup>.</p> <p>Conclusions</p> <p>Lymphocytes are the predominant cell type in the central part of a sarcoid granuloma, significantly exceeding both epithelioid cells and macrophages in number, raising the question if the term “epithelioid granuloma”, routinely used to designate sarcoid granulomas, is correct, or if it would be more logical to call them “lymphocytic-epithelioid granulomas” instead.</p> <p>Trial registration</p> <p>This study was supported by the Serbian Ministry of Science and Environmental Protection Grant Number 175006/2011.</p>
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spelling doaj.art-c14c17e4a1f2412198b76eeeb73dad2d2024-04-28T12:09:55ZengMattioli 1885Multidisciplinary Respiratory Medicine2049-69582012-06-01711110.1186/2049-6958-7-11The sarcoid granuloma: ‘epithelioid’ or ‘lymphocytic-epithelioid’ granuloma?Kosjerina ZdravkoZaric BojanVuckovic DejanLalosevic DusanDjenadic GoranMurer Bruno<p>Abstract</p> <p>Background</p> <p>This study aims to analyze the structure and quantities of cellular elements in sarcoid granulomas.</p> <p>Methods</p> <p>We investigated 34 transbronchial lung biopsy samples obtained from 34 sarcoid patients. The quantity and composition of the cellular elements inside a granuloma were determined by the quantitative stereometry method, employing the numerical density as a stereological method.</p> <p>Results</p> <p>A total of 102 sarcoid granulomas were analyzed. The central part of all granulomas was occupied by epithelioid cells. Besides these, giant cells, lymphocytes, macrophages and plasma cells were also seen. The mean numerical density of all the cells in the central part of a sarcoid granuloma was 111,751 mm<sup>-3.</sup> Lymphocytes prevailed in number, exceeding the total count of all other cells. With a mean numerical density of 74,321 mm<sup>-3</sup>, lymphocytes were twice as numerous as both epithelioid cells and macrophages with a mean numerical density of 37,193 mm<sup>-3</sup>.</p> <p>Conclusions</p> <p>Lymphocytes are the predominant cell type in the central part of a sarcoid granuloma, significantly exceeding both epithelioid cells and macrophages in number, raising the question if the term “epithelioid granuloma”, routinely used to designate sarcoid granulomas, is correct, or if it would be more logical to call them “lymphocytic-epithelioid granulomas” instead.</p> <p>Trial registration</p> <p>This study was supported by the Serbian Ministry of Science and Environmental Protection Grant Number 175006/2011.</p>http://www.mrmjournal.com/content/7/1/11Epithelioid granulomaLymphocytic-epithelioid granulomaMorphometrySarcoidosis
spellingShingle Kosjerina Zdravko
Zaric Bojan
Vuckovic Dejan
Lalosevic Dusan
Djenadic Goran
Murer Bruno
The sarcoid granuloma: ‘epithelioid’ or ‘lymphocytic-epithelioid’ granuloma?
Multidisciplinary Respiratory Medicine
Epithelioid granuloma
Lymphocytic-epithelioid granuloma
Morphometry
Sarcoidosis
title The sarcoid granuloma: ‘epithelioid’ or ‘lymphocytic-epithelioid’ granuloma?
title_full The sarcoid granuloma: ‘epithelioid’ or ‘lymphocytic-epithelioid’ granuloma?
title_fullStr The sarcoid granuloma: ‘epithelioid’ or ‘lymphocytic-epithelioid’ granuloma?
title_full_unstemmed The sarcoid granuloma: ‘epithelioid’ or ‘lymphocytic-epithelioid’ granuloma?
title_short The sarcoid granuloma: ‘epithelioid’ or ‘lymphocytic-epithelioid’ granuloma?
title_sort sarcoid granuloma epithelioid or lymphocytic epithelioid granuloma
topic Epithelioid granuloma
Lymphocytic-epithelioid granuloma
Morphometry
Sarcoidosis
url http://www.mrmjournal.com/content/7/1/11
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