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Goto T, Sato S, Koike T, Tsuchida M. Surgical resection of a giant polycystic seminoma of the mediastinum. J Thorac Dis 2018; 10:E438-E441. [PMID: 30069400 DOI: 10.21037/jtd.2018.05.79] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tatsuya Goto
- Division of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Seijiro Sato
- Division of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Terumoto Koike
- Division of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Masanori Tsuchida
- Division of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Inui M, Nitadori JI, Tajima S, Yoshioka T, Hiyama N, Watadani T, Shinozaki-Ushiku A, Nagayama K, Anraku M, Sato M, Fukayama M, Nakajima J. Mediastinal seminoma associated with multilocular thymic cyst. Surg Case Rep 2017; 3:7. [PMID: 28054283 PMCID: PMC5215007 DOI: 10.1186/s40792-016-0278-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 12/16/2016] [Indexed: 11/28/2022] Open
Abstract
An asymptomatic 26-year-old man received an annual medical check-up, and chest X-ray showed a protrusion of the aortopulmonary window. Chest computed tomography (CT) revealed an anterior mediastinal tumor and cysts with thin wall and septum enhancement. The preoperative diagnosis was cystic thymoma or malignant lymphoma. We performed total resection of the tumor through a median sternotomy. The pathological findings revealed seminoma, positive for c-kit stain, and multilocular thymic cysts. Cysts were lined by normal squamous epithelium and no seminoma cells were located on their surface. So, cysts were probably secondary changes caused by seminoma cells themselves or inflammatory stimulations. No invasion to adjacent structures was seen. After the surgery, testicular ultrasound imaging and abdominal, pelvic, and cerebral CT showed no apparent tumor or enlarged lymph nodes; however, an abnormal uptake in the right mesenteric lymph node was pointed out by 18F-fluorodeoxyglucose-positron emission tomography (FDG-PET) scan. The patient received four courses of bleomycin, etoposide, and cisplatin (BEP) as adjuvant chemotherapy. Follow-up PET scan revealed no uptake in the right mesenteric lymph node. To date, no recurrence or metastasis has been identified for 16 months.
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Affiliation(s)
- Masato Inui
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan. .,Department of Thoracic Surgery, School of Medicine, The University of Tokyo Hospital, 7-3-1 Hongo Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Jun-Ichi Nitadori
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Shogo Tajima
- Department of Pathology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Takahusa Yoshioka
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Noriko Hiyama
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Takeyuki Watadani
- Department of Radiology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Aya Shinozaki-Ushiku
- Department of Pathology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Kazuhiro Nagayama
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masaki Anraku
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masaaki Sato
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masashi Fukayama
- Department of Pathology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Jun Nakajima
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
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Abstract
Cysts of the mediastinum comprise a relatively diverse group of lesions that include neoplastic and nonneoplastic constituents, the latter of which are largely congenital in nature. Therefore, a grasp of their clinicopathologic characteristics is bolstered by knowledge of which tumors in the chest may undergo cystic change, as well as the embryologic development of the thoracic organs. That information, as well as radiological and pathologic features of these lesions, is discussed in this review.
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Affiliation(s)
- Mark R Wick
- Division of Surgical Pathology and Cytopathology, University of Virginia Health System, Charlottesville, Virginia 22908-0214, USA.
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Hosono M, Machida K, Honda N, Takahashi T, Kashimada A, Murata O, Osada H, Ohtawa N, Itoyama S. Intense Ga-67 accumulation in pure primary mediastinal seminomas. Clin Nucl Med 2003; 28:25-8. [PMID: 12493956 DOI: 10.1097/00003072-200301000-00006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The authors examined three patients with pure primary mediastinal seminomas, all of whom had marked Ga-67 uptake on scintigraphy. The unusual presentation of sclerotic bone metastases with remarkable extraosseous soft tissue involvement was observed in one patient. Another had a seminoma associated with a multiloculated thymic cyst, which is a rare lesion.
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Affiliation(s)
- Makoto Hosono
- Departments of Radiology, Saitama Medical Center, Saitama Medical School, Saitama, Japan.
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