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Fichtner A, Marx A, Ströbel P, Bremmer F. Primary germ cell tumours of the mediastinum: A review with emphasis on diagnostic challenges. Histopathology 2024; 84:216-237. [PMID: 37994540 DOI: 10.1111/his.15090] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 11/24/2023]
Abstract
This article will review current aspects of the histopathological, immunohistochemical and molecular analysis of primary mediastinal germ cell tumours (PMGCTs) as well as their aetiological, epidemiological, clinical and therapeutic features. PMGCTs represent an important differential diagnosis in the spectrum of mediastinal tumours, and their diagnosis is usually made on small tissue samples from core needle biopsies in combination with diagnostic imaging and serum tumour markers. As in lymphomas, a small biopsy is often the only viable tumour sample available from these patients, as they receive chemotherapy prior to eventual surgical resection. Pathologists therefore need to apply an efficient combination of immunohistochemical markers to confirm the diagnosis of a PMGCT and to exclude morphological mimics.
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Affiliation(s)
- Alexander Fichtner
- Institute of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | - Alexander Marx
- Institute of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | - Philipp Ströbel
- Institute of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | - Felix Bremmer
- Institute of Pathology, University Medical Center Göttingen, Göttingen, Germany
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2
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Karan S, Mukherjee R, Roy PS, Mohin M, Firdous W, Chatterjee U. Yolk Sac Tumour Arising in the Glans Penis an Achondroplasic Child: A Case Report with Summary of Prior Published Cases. Fetal Pediatr Pathol 2023; 42:820-824. [PMID: 37534583 DOI: 10.1080/15513815.2023.2242941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/26/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Yolk sac tumors (YST) are commonly encountered gonadal germ cell tumors in children, especially in the prepubertal age group. In addition to gonadal primary, it can occur in multiple extragonadal sites, of which sacrococcygeal, retroperitoneum, gastric and mediastinum are the commonest. There are 4 previous reports of primary penile YST. CASE REPORT We describe a primary penile yolk sac tumor in a child with achondroplasia. CONCLUSION Yolk sac tumor can occur in the penis during the prepubertal period. Penile yolk sac tumor associated with achondroplasia has not been previously reported, but this could be incidental.
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Affiliation(s)
| | | | | | - Md Mohin
- Department of Pathology, IPGME&R, Kolkata, India
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Wu D, Zhang K, Zhang X. Primary mediastinal yolk sac tumor: A case report and literature review. Clin Case Rep 2023; 11:e7781. [PMID: 37564606 PMCID: PMC10410121 DOI: 10.1002/ccr3.7781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/29/2023] [Accepted: 07/16/2023] [Indexed: 08/12/2023] Open
Abstract
Key Clinical Message There are limited published cases of primary mediastinal yolk sac tumor (PMYST), with no consensus on the best treatment alternative. By far, the surgery oriented comprehensive therapies are the main treatment methods. The surgical strategy should be individualized and aimed at radical resection, considering all the possibilities, including the use of cardiopulmonary bypass and prosthetic materials. Abstract A 15-year-old boy was diagnosed as PMYST. The tumor, with a size about 13 × 12 × 8 cm, was located in the right upper mediastinum, closely adhering to ascending aorta, superior vena cava, right atrium, and the right hilum. After 6 cycles chemotherapy of bleomycin, etoposide, and cisplatin (BEP), no significant change was found in the size of tumor. Subsequently, an extended tumor excision including partial resection of the right lung, the pericardium, the diaphragm and the right phrenic nerve, was performed successfully with cardiopulmonary bypass on standby. During 6 months of follow-up, there was no tumor recurrence. Meanwhile, in PubMed, we searched the English case reports and case series of PMYST during the past decade. A total of 73 articles were retrieved, in which 22 articles on the therapy and prognosis of PMYST were extracted and reviewed, included 16 case reports and 6 case series with a total of 52 patients. Due to the rarity of PMYST, it is difficult to provide a specific treatment regimen. The surgery-oriented comprehensive therapies are still the main treatment methods. The surgical strategy should be individualized and aim at radical resection, considering all the possibilities, including the use of cardiopulmonary bypass and prosthetic materials.
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Affiliation(s)
- Diqing Wu
- Department of Cardiac and Macrovascular SurgerySuzhou Hospital of Anhui Medical UniversitySuzhouChina
| | - Kun Zhang
- Department of OncologySuzhou Hospital of Anhui Medical UniversitySuzhouChina
| | - Xueqin Zhang
- Department of Cardiac and Macrovascular SurgerySuzhou Hospital of Anhui Medical UniversitySuzhouChina
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Kundu U, Gan Q, Donthi D, Sneige N. The Utility of Fine Needle Aspiration (FNA) Biopsy in the Diagnosis of Mediastinal Lesions. Diagnostics (Basel) 2023; 13:2400. [PMID: 37510144 PMCID: PMC10378189 DOI: 10.3390/diagnostics13142400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 06/22/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
Fine needle aspiration is a minimally invasive, low-morbidity, and cost-efficient technique for the sampling of mediastinal lesions. Additionally, ancillary testing on FNA samples can be used for the refinement of diagnoses and for treatment-related purposes (flow cytometry, cytogenetics, immunohistochemistry, and molecular diagnostics). Mediastinal lesions, however, can show a variety of lineages and morphologic features, giving rise to diagnostic dilemmas. As a result, the differential diagnosis can vary widely and becomes especially challenging due to the smaller sample size on FNA and the variability in component sampling. For appropriate patient management and to determine the correct treatment strategies, accurate pathologic diagnoses are paramount. In this review, we present the cytomorphologic features together with the immunophenotypic findings of mediastinal lesions, with emphasis on the diagnostic challenges and pitfalls in FNA cytology samples, including smears and cell block sections.
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Affiliation(s)
- Uma Kundu
- Section of Cytopathology, Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Qiong Gan
- Section of Cytopathology, Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Deepak Donthi
- Section of Cytopathology, Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Nour Sneige
- Section of Cytopathology, Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Aroshidze B, Boyapati L, Pokhrel A, Gotlieb V, Khan A, Erdinc B, Cheema MA. Yolk Sac Tumor in the Anterior Mediastinum Presenting as Acute Pericarditis. AMERICAN JOURNAL OF CASE REPORTS 2022; 23:e932616. [PMID: 35077441 PMCID: PMC8800463 DOI: 10.12659/ajcr.932616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Mediastinal masses can originate from anatomical structures normally located in the mediastinum, or from structures that travel through the mediastinum during embryogenesis. Initial presenting symptoms usually vary from shortness of breath, cough, chest pain, and superior vena cava syndrome to nonspecific constitutional symptoms (eg, fever, weight loss, fatigue). However, the initial presentation of a mediastinal mass with acute pericarditis has not been reported in the literature as far as we know. CASE REPORT A 20-year-old man presented to the Cardiology Clinic with chest pain and new pericardial effusion on echocardiography, both fulfilling the diagnostic criteria of acute pericarditis. The patient also had venous engorgement on the neck, and a chest X-ray followed by computed tomography imaging showed a large mediastinal mass. The serum tumor marker a-fetoprotein (AFP) was markedly elevated. The biopsy and immunohistochemistry revealed a high-grade malignant neoplasm - yolk sac tumor, which is a type of non-seminomatous germ cell tumor. The acute pericarditis resolved after administration of NSAID and colchicine. The patient was then started on chemotherapy. CONCLUSIONS The discussed case shows the rare presentation of an anterior mediastinal mass with acute pericarditis. This emphasizes the importance of a thorough review of systems and critical analysis of every sign and symptom at the time of initial presentation, which helps the physician to obtain appropriate imaging studies early in the course, leading to an early diagnosis and treatment of the disease, such as in this case of an extremely rare germ cell tumor.
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Affiliation(s)
- Beka Aroshidze
- Department of Internal Medicine, One Brooklyn Health System, Brooklyn, NY, USA
| | - Lakshmi Boyapati
- Department of Hematology and Oncology, One Brooklyn Health System, Brooklyn, NY, USA
| | - Akriti Pokhrel
- Department of Internal Medicine, One Brooklyn Health System, Brooklyn, NY, USA
| | - Vladimir Gotlieb
- Department of Hematology and Oncology, One Brooklyn Health System, Brooklyn, NY, USA
| | - Abdullah Khan
- Department of Cardiology, One Brooklyn Health System, Brooklyn, NY, USA
| | - Burak Erdinc
- Department of Hematology and Oncology, One Brooklyn Health System, Brooklyn, NY, USA
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Fichtner A, Richter A, Filmar S, Kircher S, Rosenwald A, Küffer S, Nettersheim D, Oing C, Marx A, Ströbel P, Bremmer F. Primary mediastinal germ cell tumours: an immunohistochemical and molecular diagnostic approach. Histopathology 2021; 80:381-396. [PMID: 34506648 DOI: 10.1111/his.14560] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 08/24/2021] [Accepted: 09/06/2021] [Indexed: 11/30/2022]
Abstract
AIMS Primary mediastinal germ cell tumours (PMGCTs) are rare mediastinal neoplasms and their diagnosis can be challenging due to small biopsy samples. The aim of this study was to elaborate a diagnostic algorithm using immunohistochemical stainings with focus on novel markers and molecular analysis of isochromosome 12p [i(12p)]. METHODS AND RESULTS Paraffin-embedded tissues of 32 mediastinal tumours were analysed using immunohistochemical stainings for SALL4, LIN28, OCT3/4, D2-40, CD117, SOX17, SOX2, CD30, ß-hCG, GATA3, FOXA2, GPC3, AFP, TdT, NUT and pan-cytokeratin. Quantitative real-time polymerase chain reaction (qPCR) was performed to investigate i(12p) status. Fifteen seminomas, seven teratomas, one yolk sac tumour, one choriocarcinoma and seven mixed PMGCT were diagnosed. Each entity had different immunohistochemical staining patterns which helped to distinguish them: seminoma (OCT3/4, D2-40, CD117, TdT), embryonal carcinoma (OCT3/4, SOX2), yolk sac tumour (FOXA2, GPC3, AFP) and choriocarcinoma (ß-hCG, GATA3). Mature teratomas stained positive for pan-cytokeratin in epithelial components and focally for SALL4, SOX2, GATA3, D2-40 and FOXA2. Furthermore, a NUT carcinoma mimicking a PMGCT was diagnosed showing a strong nuclear SOX2 and speckled nuclear NUT staining. i(12p) was detected in 24 out of 27 PMGCTs [89%]. CONCLUSION A diagnostic algorithm is of great importance for a reliable diagnosis of PMGCTs in the usually small tissue biopsy samples. Therefore, a combination of three to four antibodies to identify the correct histological subtype is usually necessary in addition to morphological features. The i(12p) status serves as an additional option to underline germ cell origin in selected cases.
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Affiliation(s)
- A Fichtner
- University Medical Center Göttingen, Institute of Pathology, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - A Richter
- University Medical Center Göttingen, Institute of Pathology, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - S Filmar
- University Medical Center Göttingen, Institute of Pathology, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - S Kircher
- University of Würzburg, Institute of Pathology, Josef-Schneider-Straße 2, 97070, Würzburg, Germany
| | - A Rosenwald
- University of Würzburg, Institute of Pathology, Josef-Schneider-Straße 2, 97070, Würzburg, Germany
| | - S Küffer
- University Medical Center Göttingen, Institute of Pathology, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - D Nettersheim
- Heinrich-Heine-University, Medical Faculty and University Hospital Düsseldorf, Department of Urology, Urological Research Laboratory, Translational UroOncology, Universitätsstrasse 1, 40225, Düsseldorf, Germany
| | - C Oing
- University Medical Centre Hamburg-Eppendorf, Department of Oncology, Haematology and Bone Marrow Transplantation with Division of Pneumology & Mildred Scheel Cancer Career Centre HaTriCS4, Martinistrasse 52, 20246, Hamburg, Germany
| | - A Marx
- University Medical Centre Mannheim, Institute of Pathology, Theodor-Kutzer-Ufer 1-3, 68135, Mannheim, Germany
| | - P Ströbel
- University Medical Center Göttingen, Institute of Pathology, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - F Bremmer
- University Medical Center Göttingen, Institute of Pathology, Robert-Koch-Str. 40, 37075, Göttingen, Germany
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El-Zaatari ZM, Ro JY. Mediastinal Germ Cell Tumors: A Review and Update on Pathologic, Clinical, and Molecular Features. Adv Anat Pathol 2021; 28:335-350. [PMID: 34029275 DOI: 10.1097/pap.0000000000000304] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Mediastinal germ cell tumors (MGCTs) are the most common extragonadal germ cell tumors (GCTs) and most often arise in the anterior mediastinum with a male predilection. MGCTs also have a predilection for patients with Klinefelter syndrome and possibly other genetic conditions. MGCTs, as GCTs at other extragonadal sites, are thought to arise from germ cells improperly retained during migration along the midline during embryogenesis. Similar to their counterparts in the testes, MGCTs are classified into seminomatous and nonseminomatous GCTs. Seminomatous MGCT represents pure seminoma, whereas nonseminomatous MGCTs encompass pure yolk sac tumors, embryonal carcinoma, choriocarcinoma, mature or immature teratoma, and mixed GCTs with any combination of GCT types, including seminoma. Somatic-type or hematologic malignancies can also occur in association with a primary MGCT. MGCTs share molecular findings with GCTs at other sites, most commonly the presence of chromosome 12p gains and isochromosome i(12p). Treatment includes neoadjuvant chemotherapy followed by surgical resection of residual tumor, with the exception of benign teratomas, which require only surgical resection without chemotherapy. In this review, we highlight and provide an update on pathologic, clinical, and molecular features of MGCTs. Immunohistochemical profiles of each tumor type, as well as differential diagnostic considerations, are discussed.
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Affiliation(s)
- Ziad M El-Zaatari
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX
| | - Jae Y Ro
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX
- Weill Medical College of Cornell University (WCMC), New York, NY
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8
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Reiswich V, Gorbokon N, Luebke AM, Burandt E, Menz A, Kluth M, Hube-Magg C, Wittmer C, Weidemann S, Fraune C, Möller K, Lebok P, Sauter G, Simon R, Uhlig R, Wilczak W, Jacobsen F, Minner S, Krech R, Bernreuther C, Marx A, Steurer S, Clauditz T, Krech T. Pattern of placental alkaline phosphatase (PLAP) expression in human tumors: a tissue microarray study on 12,381 tumors. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2021; 7:577-589. [PMID: 34363325 PMCID: PMC8503897 DOI: 10.1002/cjp2.237] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/14/2021] [Accepted: 07/12/2021] [Indexed: 12/02/2022]
Abstract
Placental alkaline phosphatase (PLAP) is commonly expressed at high levels in testicular germ cell tumors. PLAP immunohistochemistry (IHC) is thus often used to confirm this diagnosis, especially in cases of putative metastasis. However, other tumors can also express PLAP. To comprehensively determine PLAP expression in normal and tumor tissue, a tissue microarray containing 16,166 samples from 131 different tumor types and subtypes as well as 608 samples from 76 different normal tissue types was analyzed by IHC. Moderate to strong PLAP positivity was found in 27 (21%) of 131 different tumor types including seminoma (96%), embryonal carcinoma (85%), and yolk sac tumors of the testis (56%); endometrioid carcinoma of the endometrium (28%) and the ovary (20%); gastric adenocarcinoma (22%); serous carcinoma (not otherwise specified) of the ovary (17%) and the uterus (11%); adenocarcinoma of the ampulla of Vater (15%); carcinosarcoma of the ovary (11%) and the uterus (8%); esophageal adenocarcinoma (10%); invasive urothelial carcinoma (4%); cholangiocarcinoma (2%); and adenocarcinoma of the lung (1%). Low‐level PLAP immunostaining, often involving only a small fraction of tumor cells, was seen in 21 additional tumor entities. The clinical significance of PLAP expression may vary between tumor types as high PLAP expression was linked to advanced pathological tumor stage (p = 0.0086), nodal metastasis (p = 0.0085), and lymphatic (p = 0.0007) and blood vessel invasion (p = 0.0222) in colorectal cancer, but to low pathological tumor stage in endometrial cancer (p = 0.0043). In conclusion, our data identify several tumor entities that can show PLAP expression at comparable levels to testicular germ cell tumors. These tumor entities need to be considered in cases of PLAP‐positive metastasis. Low‐level PLAP expression can be found in various other tumor entities and should generally not be viewed as a strong argument for germ cell neoplasia.
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Affiliation(s)
- Viktor Reiswich
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Natalia Gorbokon
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas M Luebke
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eike Burandt
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anne Menz
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martina Kluth
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Claudia Hube-Magg
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Corinna Wittmer
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sören Weidemann
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Fraune
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Katharina Möller
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Patrick Lebok
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Guido Sauter
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ronald Simon
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ria Uhlig
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Waldemar Wilczak
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Frank Jacobsen
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sarah Minner
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Rainer Krech
- Institute of Pathology, Clinical Center Osnabrueck, Osnabrueck, Germany
| | - Christian Bernreuther
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas Marx
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Pathology, Academic Hospital Fuerth, Fuerth, Germany
| | - Stefan Steurer
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Till Clauditz
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Till Krech
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Institute of Pathology, Clinical Center Osnabrueck, Osnabrueck, Germany
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Qin L, Zhu M, Wang T, Wang H, Pan Q, He D. The clinical features and prognostic outcomes of primary mediastinal yolk sac tumors: A retrospective analysis of 15 rare cases from multiple centers. Medicine (Baltimore) 2021; 100:e26480. [PMID: 34398004 PMCID: PMC8294869 DOI: 10.1097/md.0000000000026480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 05/28/2021] [Indexed: 01/04/2023] Open
Abstract
Primary mediastinal yolk sac tumors (PMYSTs) are a rare occurrence. As such, the clinicopathological features, treatment, and prognosis, of this disease still remain unclear. In this study, we aimed to provide further information relating to this rare malignancy in order to facilitate the creation of more specific clinical guidelines for the diagnosis and treatment of patients with PMYSTs.In this retrospective study, we recruited 15 patients who had been diagnosed with PMYST from four medical institutions to create a population-based cohort. We then used Kaplan-Meier analysis and the log-rank test to investigate and compare overall survival (OS) and progression-free survival (PFS).A total of 15 cases were identified. The mean age was 27.3 years (range: 19-34 years). The estimated 1- and 2-year PFS rates were 66.7% and 60.0%, respectively. The 1- and 2-year OS rates were both 73.3%. Computer tomography scans revealed tumors were located in the anterior middle mediastinum (5 cases), the anterior superior mediastinum (1 case), the left anterior mediastinum (3 cases), and the right anterior mediastinum (6 cases). Of the 15 patients receiving extended resections, the majority (40.0%) underwent tumor resection, partial pericardiotomy, pulmonary wedge resection, and mediastinal lymphadenectomy. R0 resections were achieved in eleven patients. Four patients underwent R2 resection and experienced postoperative complications, including pneumonia (2 cases), atelectasis (1 case), and bronchopleural fistula (1 case). Four patients developed postoperative lung metastasis. Three patients died due to progressive diseases. Disease recurred in all patients at a median of 8.0 months (range: 6.0-11.0 months).PMYST is a rare but highly malignant tumor with a poor prognosis. Tumor resection, with optimal extended surgical management, may provide patients with the best chance of a cure although postoperative complications relating to the pulmonary systems should be treated with caution.
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Affiliation(s)
- Li Qin
- Department of Obstetrics and Gynecology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, China
| | - Menglin Zhu
- Department of Oncology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, China
| | - Tiejun Wang
- Department of Oncology, Hubei Cancer Hospital, Wuhan, China
| | - Hongli Wang
- Department of Pathology, Minda Hospital of Hubei Minzu University, Enshi, China
| | - Qin Pan
- Department of Obstetrics and Gynecology, Jingzhou Central Hospital, The Second Clinical Medical College of Yangtze University, Jingzhou, China
| | - Du He
- Department of Oncology, The Central Hospital of Enshi Autonomous Prefecture, Enshi, China
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Kei S, Adeyi OA. Practical Application of Lineage-Specific Immunohistochemistry Markers: Transcription Factors (Sometimes) Behaving Badly. Arch Pathol Lab Med 2019; 144:626-643. [PMID: 31385722 DOI: 10.5858/arpa.2019-0226-ra] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Transcription factors (TFs) are proteins that regulate gene expression and control RNA transcription from DNA. Lineage-specific TFs have increasingly been used by pathologists to determine tumor lineage, especially in the setting of metastatic tumors of unknown primary, among other uses. With experience gathered from its daily application and increasing pitfalls reported from immunohistochemical studies, these often-touted highly specific TFs are not as reliable as once thought. OBJECTIVES.— To summarize the established roles of many of the commonly used TFs in clinical practice and to discuss known and potential sources for error (eg, false-positivity from cross-reactivity, aberrant, and overlap "lineage-specific" expression) in their application and interpretation. DATA SOURCES.— Literature review and the authors' personal practice experience were used. Several examples selected from the University Health Network (Toronto, Ontario, Canada) are illustrated. CONCLUSIONS.— The application of TF diagnostic immunohistochemistry has enabled pathologists to better assess the lineage/origin of primary and metastatic tumors. However, the awareness of potential pitfalls is essential to avoid misdiagnosis.
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Affiliation(s)
- Si Kei
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada (Dr Lou); and the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Dr Adeyi)
| | - Oyedele A Adeyi
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada (Dr Lou); and the Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis (Dr Adeyi)
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