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Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report.
Surg Case Rep. 2020 Jul 07; 6(1):163.SC

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.

Authors+Show Affiliations

Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan. takuya.watanabe@sis.seirei.or.jp.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Pathology, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.Division of Thoracic Surgery, Respiratory Disease Center, Seirei Mikatahara General Hospital, 3453, Mikatahara-cho, Kita-ku Hamamatsu, Shizuoka, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32638177

Citation

Watanabe, Takuya, et al. "Solitary Fibrous Tumor of the Pleura With Marked Cystic Degeneration: a Case Report." Surgical Case Reports, vol. 6, no. 1, 2020, p. 163.
Watanabe T, Tanahashi M, Suzuki E, et al. Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report. Surg Case Rep. 2020;6(1):163.
Watanabe, T., Tanahashi, M., Suzuki, E., Yoshii, N., Chiba, K., Tsuchida, H., Yobita, S., Uchiyama, S., Iguchi, K., Ogawa, H., & Niwa, H. (2020). Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report. Surgical Case Reports, 6(1), 163. https://doi.org/10.1186/s40792-020-00931-9
Watanabe T, et al. Solitary Fibrous Tumor of the Pleura With Marked Cystic Degeneration: a Case Report. Surg Case Rep. 2020 Jul 7;6(1):163. PubMed PMID: 32638177.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Solitary fibrous tumor of the pleura with marked cystic degeneration: a case report. AU - Watanabe,Takuya, AU - Tanahashi,Masayuki, AU - Suzuki,Eriko, AU - Yoshii,Naoko, AU - Chiba,Kensuke, AU - Tsuchida,Hiroyuki, AU - Yobita,Shogo, AU - Uchiyama,Suiha, AU - Iguchi,Kensuke, AU - Ogawa,Hiroshi, AU - Niwa,Hiroshi, Y1 - 2020/07/07/ PY - 2020/05/11/received PY - 2020/06/29/accepted PY - 2020/7/9/entrez PY - 2020/7/9/pubmed PY - 2020/7/9/medline KW - Cyst KW - Cystic degeneration KW - Pleura KW - Solitary fibrous tumor SP - 163 EP - 163 JF - Surgical case reports JO - Surg Case Rep VL - 6 IS - 1 N2 - 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. SN - 2198-7793 UR - https://www.unboundmedicine.com/medline/citation/32638177/Solitary_fibrous_tumor_of_the_pleura_with_marked_cystic_degeneration:_a_case_report L2 - https://dx.doi.org/10.1186/s40792-020-00931-9 DB - PRIME DP - Unbound Medicine ER -
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