Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report

Abstract Background Solitary fibrous tumor of the pleura (SFTP) is a mesenchymal tumor, and computed tomography typically shows SFTPs as well-defined lobulated masses. We herein report a case of SFTP with cystic degeneration of the entire tumor. Case presentation The patient was a 67-year-old Japane...

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Main Authors: Takuya Watanabe, Masayuki Tanahashi, Eriko Suzuki, Naoko Yoshii, Kensuke Chiba, Hiroyuki Tsuchida, Shogo Yobita, Suiha Uchiyama, Kensuke Iguchi, Hiroshi Ogawa, Hiroshi Niwa
Format: Article
Language:English
Published: Japan Surgical Society 2020-07-01
Series:Surgical Case Reports
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Online Access:http://link.springer.com/article/10.1186/s40792-020-00931-9
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author Takuya Watanabe
Masayuki Tanahashi
Eriko Suzuki
Naoko Yoshii
Kensuke Chiba
Hiroyuki Tsuchida
Shogo Yobita
Suiha Uchiyama
Kensuke Iguchi
Hiroshi Ogawa
Hiroshi Niwa
author_facet Takuya Watanabe
Masayuki Tanahashi
Eriko Suzuki
Naoko Yoshii
Kensuke Chiba
Hiroyuki Tsuchida
Shogo Yobita
Suiha Uchiyama
Kensuke Iguchi
Hiroshi Ogawa
Hiroshi Niwa
author_sort Takuya Watanabe
collection DOAJ
description Abstract Background Solitary fibrous tumor of the pleura (SFTP) is a mesenchymal tumor, and computed tomography typically shows SFTPs as well-defined lobulated masses. We herein report a case of SFTP with cystic degeneration of the entire tumor. Case presentation The patient was a 67-year-old Japanese man who was referred to our hospital for an abnormal shadow on a chest X-ray. Computed tomography showed a 9-cm cystic tumor in the lower left lobe, with small nodules aggregated in the cyst. Pulmonary aspergillosis was suspected, and left basal segmentectomy was performed. A pedunculated cystic tumor was connected to the pleura with a stalk, and white polypoidal masses were found within the cystic tumor. Microscopy revealed uniform fibroblastic spindle cell proliferation and marked cystic degeneration, the cyst walls were formed of the same tumor cells. Immunohistochemical staining revealed that the tumor cells were positive for CD34, CD99, and BCL2. Based on these findings, the tumor was diagnosed as SFTP with cystic degeneration. Conclusion We experienced an extremely rare case of atypical SFTP with cystic degeneration.
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spelling doaj-art-2e7cdabe29c742529996c91bdd0bc2d22025-08-20T03:15:09ZengJapan Surgical SocietySurgical Case Reports2198-77932020-07-01611510.1186/s40792-020-00931-9Solitary fibrous tumor of the pleura with marked cystic degeneration: a case reportTakuya Watanabe0Masayuki Tanahashi1Eriko Suzuki2Naoko Yoshii3Kensuke Chiba4Hiroyuki Tsuchida5Shogo Yobita6Suiha Uchiyama7Kensuke Iguchi8Hiroshi Ogawa9Hiroshi Niwa10Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalDivision of Pathology, Seirei Mikatahara General HospitalDivision of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General HospitalAbstract Background Solitary fibrous tumor of the pleura (SFTP) is a mesenchymal tumor, and computed tomography typically shows SFTPs as well-defined lobulated masses. We herein report a case of SFTP with cystic degeneration of the entire tumor. Case presentation The patient was a 67-year-old Japanese man who was referred to our hospital for an abnormal shadow on a chest X-ray. Computed tomography showed a 9-cm cystic tumor in the lower left lobe, with small nodules aggregated in the cyst. Pulmonary aspergillosis was suspected, and left basal segmentectomy was performed. A pedunculated cystic tumor was connected to the pleura with a stalk, and white polypoidal masses were found within the cystic tumor. Microscopy revealed uniform fibroblastic spindle cell proliferation and marked cystic degeneration, the cyst walls were formed of the same tumor cells. Immunohistochemical staining revealed that the tumor cells were positive for CD34, CD99, and BCL2. Based on these findings, the tumor was diagnosed as SFTP with cystic degeneration. Conclusion We experienced an extremely rare case of atypical SFTP with cystic degeneration.http://link.springer.com/article/10.1186/s40792-020-00931-9Solitary fibrous tumorCystCystic degenerationPleura
spellingShingle Takuya Watanabe
Masayuki Tanahashi
Eriko Suzuki
Naoko Yoshii
Kensuke Chiba
Hiroyuki Tsuchida
Shogo Yobita
Suiha Uchiyama
Kensuke Iguchi
Hiroshi Ogawa
Hiroshi Niwa
Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report
Surgical Case Reports
Solitary fibrous tumor
Cyst
Cystic degeneration
Pleura
title Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report
title_full Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report
title_fullStr Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report
title_full_unstemmed Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report
title_short Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report
title_sort solitary fibrous tumor of the pleura with marked cystic degeneration a case report
topic Solitary fibrous tumor
Cyst
Cystic degeneration
Pleura
url http://link.springer.com/article/10.1186/s40792-020-00931-9
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