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Multilocular Thymic Cyst with Follicular Lymphoid Hyperplasia in a Male Infected with HIV

Multilocular Thymic Cyst with Follicular Lymphoid Hyperplasia in a Male Infected with HIV Acta Cytologica Multilocular Thymic Cyst with Follicular Lymphoid Hyperplasia in a Male Infected with HIV A Case Report with Fine Needle Aspiration Cytology David C. Chhieng, M.D., Sandra Demaria, M.D., Herman T. Yee, M.D., Ph.D., and Grace C. H. Yang, M.D., F.I.A.C. BACKGROUND: Multilocular thymic cyst with follic- lymphocytes as well as large aggregates of “epithelial” ular lymphoid hyperplasia is a rare complication in HIV- cells intermixed with lymphocytes in a background of infected patients, causing macrophages and cyst fluid. pseudotumorous enlarge- Histologic examination of ment of the anterior medi- the resected mass revealed a This entity should be considered astinum. There have been six multilocular thymic cyst reported cases, all with only with follicular lymphoid hy- whenever FNA biopsy is performed histologic findings. This perplasia. HIV-1 core pro- to evaluate an anterior mediastinal paper reports another such tein p24 was localized im- case and includes perhaps the munohistochemically in the mass in patients infected with HIV. first cytologic findings on dendritic follicular cells of this rare entity. the germinal centers. In ret- CASE: A 35-year-old, HIV- rospect, the quantity of ep- infected male intravenous drug abuser, who complained ithelium derived from the cyst lining was too scanty for http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Cytologica Karger

Multilocular Thymic Cyst with Follicular Lymphoid Hyperplasia in a Male Infected with HIV

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Publisher
Karger
Copyright
© 2011 S. Karger AG, Basel
ISSN
0001-5547
eISSN
1938-2650
DOI
10.1159/000331364
Publisher site
See Article on Publisher Site

Abstract

Acta Cytologica Multilocular Thymic Cyst with Follicular Lymphoid Hyperplasia in a Male Infected with HIV A Case Report with Fine Needle Aspiration Cytology David C. Chhieng, M.D., Sandra Demaria, M.D., Herman T. Yee, M.D., Ph.D., and Grace C. H. Yang, M.D., F.I.A.C. BACKGROUND: Multilocular thymic cyst with follic- lymphocytes as well as large aggregates of “epithelial” ular lymphoid hyperplasia is a rare complication in HIV- cells intermixed with lymphocytes in a background of infected patients, causing macrophages and cyst fluid. pseudotumorous enlarge- Histologic examination of ment of the anterior medi- the resected mass revealed a This entity should be considered astinum. There have been six multilocular thymic cyst reported cases, all with only with follicular lymphoid hy- whenever FNA biopsy is performed histologic findings. This perplasia. HIV-1 core pro- to evaluate an anterior mediastinal paper reports another such tein p24 was localized im- case and includes perhaps the munohistochemically in the mass in patients infected with HIV. first cytologic findings on dendritic follicular cells of this rare entity. the germinal centers. In ret- CASE: A 35-year-old, HIV- rospect, the quantity of ep- infected male intravenous drug abuser, who complained ithelium derived from the cyst lining was too scanty for

Journal

Acta CytologicaKarger

Published: Jan 1, 2011

Keywords: thymic cyst; HIV; aspiration biopsy

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