Thymic Neuroblastoma within a Thymic Cyst in an Adult

Case Presentation: A 65-year-old female patient with no clinical manifestations was hospitalized for examination and treatment of an anterior mediastinal tumor found at the time of a regular health checkup. Enhanced computed tomography (CT) and magnetic resonance imaging revealed a cystic lesion con...

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Main Authors: Yuichiro Ueda, Mitsugu Omasa, Toshihiko Taki, Ryo Okabe, Hiroyuki Cho, Tsuyoshi Shoji, Cheng-long Huang, Yoshiaki Yuba
Format: Article
Language:English
Published: Karger Publishers 2012-08-01
Series:Case Reports in Oncology
Subjects:
Online Access:http://www.karger.com/Article/FullText/342357
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author Yuichiro Ueda
Mitsugu Omasa
Toshihiko Taki
Ryo Okabe
Hiroyuki Cho
Tsuyoshi Shoji
Cheng-long Huang
Yoshiaki Yuba
author_facet Yuichiro Ueda
Mitsugu Omasa
Toshihiko Taki
Ryo Okabe
Hiroyuki Cho
Tsuyoshi Shoji
Cheng-long Huang
Yoshiaki Yuba
author_sort Yuichiro Ueda
collection DOAJ
description Case Presentation: A 65-year-old female patient with no clinical manifestations was hospitalized for examination and treatment of an anterior mediastinal tumor found at the time of a regular health checkup. Enhanced computed tomography (CT) and magnetic resonance imaging revealed a cystic lesion containing a solid tumor. Positron emission tomography-CT demonstrated increased uptake in the solid lesion. Tumor resection with total thymectomy was performed. A pathological diagnosis of thymic neuroblastoma within a thymic cyst was made. Micorscopic examination revealed that tumor cells of the solid component were lined with thymic epithelial cells of the inner cyst wall. Furthermore, some tumor cells of the solid component had melanin granules. These findings suggest that this tumor arose from progenitors of the thymic epithelial cells with the potential to differentiate along neural lines. Conclusions: Neuroblastoma commonly occurs in children. However, the diagnosis of neuroblastoma in adults has been reported in several case reports. We report an adult case of histogenetically informative thymic neuroblastoma within a thymic cyst. There are no standard treatment strategies and chemotherapy protocols. Complete surgical resection might be important for a better outcome.
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spelling doaj.art-1b31774332bc475bacd17cf89086d9422022-12-22T02:15:37ZengKarger PublishersCase Reports in Oncology1662-65752012-08-015245946310.1159/000342357342357Thymic Neuroblastoma within a Thymic Cyst in an AdultYuichiro UedaMitsugu OmasaToshihiko TakiRyo OkabeHiroyuki ChoTsuyoshi ShojiCheng-long HuangYoshiaki YubaCase Presentation: A 65-year-old female patient with no clinical manifestations was hospitalized for examination and treatment of an anterior mediastinal tumor found at the time of a regular health checkup. Enhanced computed tomography (CT) and magnetic resonance imaging revealed a cystic lesion containing a solid tumor. Positron emission tomography-CT demonstrated increased uptake in the solid lesion. Tumor resection with total thymectomy was performed. A pathological diagnosis of thymic neuroblastoma within a thymic cyst was made. Micorscopic examination revealed that tumor cells of the solid component were lined with thymic epithelial cells of the inner cyst wall. Furthermore, some tumor cells of the solid component had melanin granules. These findings suggest that this tumor arose from progenitors of the thymic epithelial cells with the potential to differentiate along neural lines. Conclusions: Neuroblastoma commonly occurs in children. However, the diagnosis of neuroblastoma in adults has been reported in several case reports. We report an adult case of histogenetically informative thymic neuroblastoma within a thymic cyst. There are no standard treatment strategies and chemotherapy protocols. Complete surgical resection might be important for a better outcome.http://www.karger.com/Article/FullText/342357Thymic neuroblastomaThymic cystAdult
spellingShingle Yuichiro Ueda
Mitsugu Omasa
Toshihiko Taki
Ryo Okabe
Hiroyuki Cho
Tsuyoshi Shoji
Cheng-long Huang
Yoshiaki Yuba
Thymic Neuroblastoma within a Thymic Cyst in an Adult
Case Reports in Oncology
Thymic neuroblastoma
Thymic cyst
Adult
title Thymic Neuroblastoma within a Thymic Cyst in an Adult
title_full Thymic Neuroblastoma within a Thymic Cyst in an Adult
title_fullStr Thymic Neuroblastoma within a Thymic Cyst in an Adult
title_full_unstemmed Thymic Neuroblastoma within a Thymic Cyst in an Adult
title_short Thymic Neuroblastoma within a Thymic Cyst in an Adult
title_sort thymic neuroblastoma within a thymic cyst in an adult
topic Thymic neuroblastoma
Thymic cyst
Adult
url http://www.karger.com/Article/FullText/342357
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