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Dahl J. Intraplacental Gestational Neoplasms: A Review of Clinically Relevant Diagnostically Challenging Lesions. Arch Pathol Lab Med 2024; 148:398-408. [PMID: 37977155 DOI: 10.5858/arpa.2023-0109-ra] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2023] [Indexed: 11/19/2023]
Abstract
CONTEXT.— Case studies reporting intraplacental choriocarcinoma (IPC) and intraplacental "chorangiocarcinoma" have recently increased, with IPC also represented in molecular analyses of gestational trophoblastic neoplasms. OBJECTIVE.— To provide an overview of 2 intraplacental neoplastic lesions that can have a significant impact on both mother and fetus/infant, focusing on diagnostic characteristics, and ancillary and molecular tools that support diagnosis, determine prognosis, and further elucidate the nature of these lesions. DATA SOURCES.— Data were compiled from a PubMed literature review that included diagnostic and additional keywords within the scope of study for gestational choriocarcinoma in general. Illustrative cases were retrieved from the pathology archives at Michigan Medicine, including the consultation files of the author. CONCLUSIONS.— Intraplacental gestational tumors exist along the spectrum of benign (chorangioma) to aggressive malignant (choriocarcinoma) neoplasms with a high potential for metastasis. Although most gestational choriocarcinomas follow complete hydatidiform mole, 20% to 25% occur in association with normal intrauterine gestations, including rare cases in which they are detected within the placenta (IPC). IPCs range from asymptomatic to widely metastatic, with metastases possible even when only microscopic IPCs are present. A second, even less common lesion, variably called "chorangiocarcinoma" and chorangioma with atypical trophoblast proliferation, is also reviewed. The incidence of these lesions is likely to be underestimated. Heightened suspicion and more liberal placental sampling, particularly when specific clinical features are present, may result in higher detection. Enhanced detection to provide the earliest intervention for both mother and infant may improve prognosis, particularly for asymptomatic disease that may later present with metastasis.
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Affiliation(s)
- Julia Dahl
- From the Department of Pathology, University of Michigan Health System, Ann Arbor
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Kuo E, Kumarapeli AR. Placental Pathology in Down Syndrome-Associated Transient Abnormal Myelopoiesis. Arch Pathol Lab Med 2019; 144:388-393. [PMID: 30969155 DOI: 10.5858/arpa.2018-0248-rs] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Transient abnormal myelopoiesis is a hematopoietic disorder that occurs in up to 10% of neonates with Down syndrome. It is characterized by leukocytosis and the presence of circulating blast cells harboring truncating GATA1 mutations with variable multiorgan system involvement. Placental involvement of transient abnormal myelopoiesis is infrequently described. Placental examination and identifying features related to transient abnormal myelopoiesis could be one of the early, if not the only, means of diagnosis of this condition in affected stillbirths, premature infants, and a subset of asymptomatic neonates. This article provides an overview of the placental pathology in transient abnormal myelopoiesis with review of the literature, and also discusses the important differential diagnoses.
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Affiliation(s)
- Enoch Kuo
- From the Department of Pathology, University of Arkansas for Medical Sciences, Little Rock
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3
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Dai Q, Reddy VVB, Choi JK, Faye-Petersen OM. Trisomy 21-associated transient abnormal myelopoiesis involving the maternal space of the placenta: a case report and literature review. Pediatr Dev Pathol 2014; 17:366-73. [PMID: 24972120 DOI: 10.2350/14-04-1476-cr.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report a case of a male newborn with trisomy 21 and transient abnormal myelopoiesis at birth whose placenta showed extravasated fetal blasts in the perivillous (maternal) space. Concern for possible maternal spread of fetal malignancy prompted a Kleihauer-Betke test and flow cytometric analysis of the maternal peripheral blood on postpartum day 2. Notably, no evidence of the persistence of fetal cells in the maternal blood was identified, a finding that likely reflected successful maternal immunologic clearance of the fetal blasts and erythrocytes, and/or blast cellular fragility and limited viability. Ours is the first report, to our knowledge, documenting maternal peripheral-blood follow-up evaluation of this disorder in the English literature. We discuss our case in the context of a comprehensive review of fetoneonatal solid tumor and leukemic proliferative disorders with placental involvement and evidence of maternal metastasis.
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Affiliation(s)
- Qian Dai
- 1 Department of Pathology, Division of Anatomic Pathology, University of Alabama at Birmingham, 619 19th Street South, NP 3547, Birmingham, AL 35294-6823, USA
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4
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Reif P, Hofer N, Kolovetsiou-Kreiner V, Benedicic C, Ratschek M. Metastasis of an undifferentiated fetal soft tissue sarcoma to the maternal compartment of the placenta: maternal aspects, pathology findings and review of the literature on fetal malignancies with placenta metastases. Histopathology 2014; 65:933-42. [DOI: 10.1111/his.12442] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Philipp Reif
- Department of Obstetrics and Gynecology; Medical University of Graz; Graz Austria
| | - Nora Hofer
- Department of Pediatrics and Adolescence Medicine; Division of Pediatric Hemato-Oncology; Medical University of Graz; Graz Austria
| | | | - Christoph Benedicic
- Department of Obstetrics and Gynecology; Division of Gynecologic Oncology; Medical University of Graz; Graz Austria
| | - Manfred Ratschek
- Institute of Pathology; Medical University of Graz; Graz Austria
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5
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Trobaugh-Lotrario AD, Chaiyachati BH, Meyers RL, Häberle B, Tomlinson GE, Katzenstein HM, Malogolowkin MH, von Schweinitz D, Krailo M, Feusner JH. Outcomes for patients with congenital hepatoblastoma. Pediatr Blood Cancer 2013; 60:1817-25. [PMID: 23798361 DOI: 10.1002/pbc.24655] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 05/20/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND Congenital hepatoblastoma, diagnosed in the first month of life, has been reported to have a poor prognosis; however, a comprehensive evaluation of this entity is lacking. PROCEDURE We retrospectively reviewed two patients from the senior authors' personal series and 25 cases identified in the databases of several multicenter group studies (INT-0098, P9645, 881, P9346, HB 89, HB94, and HB 99). We compared this series with cases of congenital hepatoblastoma previously published in the literature. RESULTS The 3-year survival in our case series was 86% (18/21) with a follow-up of 44-230 months (median 85.5 months). Presentation and treatment were not substantially different from hepatoblastoma cohorts unselected for age. Survival was comparable to the reported disease free survival for a similar cohort of hepatoblastoma patients unselected for age between 1986 and 2002 (82.5%) [von Schweinitz et al., Eur J Cancer 1997; 33:1243-1249]. The 2-year survival of cases reported in the literature was 0% (0/9) and 42% (10/24) for patients reported before and after 1990, respectively. CONCLUSIONS Congenital hepatoblastoma does not appear to confer a worse prognosis. The improved survival of our current series of patients, collected from the past 20 years of German and American multicenter trials and personal series, suggests that the outcome of hepatoblastoma at this young age is much better than has been historically reported. More rigorous analysis should be conducted in future multicenter trials. It is possible that congenital hepatoblastoma should be treated like all other patients with hepatoblastoma provided that the child is stable enough to proceed with surgery and chemotherapy.
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Pan FS, Xu M, Wang W, Zhou LY, Xie XY. Infantile hepatic hemangioendothelioma in comparison with hepatoblastoma in children: clinical and ultrasound features. HEPATITIS MONTHLY 2013; 13:e11103. [PMID: 24171008 PMCID: PMC3800677 DOI: 10.5812/hepatmon.11103] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 04/24/2013] [Accepted: 05/03/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Infantile hepatic hemangioendothelioma (IHH) and hepatoblastoma (HBL) are respectively the most common benign and malignant liver tumors in children. OBJECTIVES To study the clinical manifestations and the ultrasound features of the pediatric patients for distinguishing IHH from HBL. PATIENTS AND METHODS Between 2002 and 2012, thirteen children with IHH and 38 children with HBL under the age of 10 years were included. We retrospectively reviewed the clinical and the ultrasound features of the two groups, especially including parameters as follows: age at diagnosis, gender, alpha-fetoprotein (AFP) elevation, venous involvement and Doppler ultrasound. RESULTS Compared with HBL group, the age of IHH group was much younger (5.8 months vs. 35.1 months, P = 0.000), the AFP elevation was less likely to be detected in IHH group (23.1% vs. 89.5%, P = 0.000). Although the color flow were the same commonly observed (61.5% vs. 52.6%, P > 0.05), the spectral Doppler showed IHH was less likely to appear as arterial flow with resistance index (RI) > 0.7(12.5% vs. 75.0%, P < 0.05), characterized by arterial flow with RI < 0.7 and/or venous flow. Combined the clinical features including age (< 6 months) and normal AFP level yielded high capability in differential diagnosis, with sensitivity, specificity and Youden index of 77% (10/13), 95% (36/38), and 0.72, respectively. When combined clinical features (age and AFP) and spectral Doppler as the diagnostic criterion for distinguishing these cases with positive color flow signals, the sensitivity, specificity, accuracy and Youden Index were 88%, 95%, 89% and 0.83, respectively. CONCLUSIONS The clinical features are effective indicators for distinguishing IHH from HBL, and the spectral Doppler may be a useful adjunct parameter for differential diagnosis.
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Affiliation(s)
- Fu-shun Pan
- Department of Medical Ultrasonic, The First Affiliated Hospital, Institute of Diagnostic and Interventional Ultrasound, Sun Yat-Sen University, Guangzhou, China
| | - Ming Xu
- Department of Medical Ultrasonic, The First Affiliated Hospital, Institute of Diagnostic and Interventional Ultrasound, Sun Yat-Sen University, Guangzhou, China
| | - Wei Wang
- Department of Medical Ultrasonic, The First Affiliated Hospital, Institute of Diagnostic and Interventional Ultrasound, Sun Yat-Sen University, Guangzhou, China
| | - Lu-yao Zhou
- Department of Medical Ultrasonic, The First Affiliated Hospital, Institute of Diagnostic and Interventional Ultrasound, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-yan Xie
- Department of Medical Ultrasonic, The First Affiliated Hospital, Institute of Diagnostic and Interventional Ultrasound, Sun Yat-Sen University, Guangzhou, China
- Corresponding author: Xiao-yan Xie, Department of Medical Ultrasonic, The First Affiliated Hospital, Institute of Diagnostic and Interventional Ultrasound, Sun Yat-Sen University, 58 Zhong Shan Road 2, Guangzhou 510080, China. Tel: +86-2087765183, Fax: +86-2087765183, E-mail:
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7
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Roberts DJ. Perinatal pathology: practice suggestions for limited-resource settings. Arch Pathol Lab Med 2013; 137:775-81. [PMID: 23721272 DOI: 10.5858/arpa.2011-0560-sa] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The practice of perinatal pathology in much of the world suffers, as do all subspecialties of anatomic pathology, from inadequate resources (equipment, consumables, and both professional and technical personnel), from lack of education (not only of the pathologist but also of the clinicians responsible for sending the specimens, and the technicians processing the specimens), and from lack of appropriate government sector support. Perinatal pathology has significant public health-related utility and should be championing its service by providing maternal and fetal/infant mortality and morbidity data to governmental health ministries. It is with this pathologic data that informed decisions can be made on health-related courses of action and allocation of resources. These perinatal pathology data are needed to develop appropriate public health initiatives, specifically toward achieving the Millennium Developmental Goals as the best way to effectively decrease infant and maternal deaths and to determine causes of perinatal mortality and morbidity. The following overview will focus on the utility of perinatal pathology specifically as related to its public health function and will suggest methods to improve its service in resource-poor settings. This article is offered not as a critique of the current practice that most pathologists find themselves working in globally, but to provide suggestions for improving perinatal pathology services, which could be implemented with the limited available resources and manpower most pathology departments currently have. In addition, we offer suggestions for graded improvements ("ramping up") over time.
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Affiliation(s)
- Drucilla J Roberts
- Department of Pathology, Massachusetts General Hospital, Boston, MA 02115, USA.
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8
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Lai M, Burjonrappa S. Perinatal hemorrhage complicating neonatal hepatoblastoma: case report. J Pediatr Surg 2012; 47:e29-32. [PMID: 23084227 DOI: 10.1016/j.jpedsurg.2012.05.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 05/02/2012] [Accepted: 05/25/2012] [Indexed: 11/29/2022]
Abstract
Hepatoblastoma is the most common malignant liver tumor of infancy and presents most frequently at a median age of 18 months. Presentation in the neonatal period is rare, and there are very few reports of an antenatal diagnosis of hepatoblastoma. We recently encountered a neonate who presented with hemoperitoneum after rupture of a congenital hepatoblastoma during vaginal delivery. After successful right hepatectomy and adjuvant cis-platinum-based chemotherapy, the child is doing well. We draw attention to rarity of this condition and difficulty in definitively establishing a diagnosis both in the antenatal and neonatal periods and discuss the management dilemmas in congenital presentations of hepatoblastoma.
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Affiliation(s)
- May Lai
- Touro College of Osteopathic Medicine, NY, USA
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10
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Abstract
Liver tumours are rare in children and account for about 5% of all tumours in the fetus and newborn. The most frequently occurring are benign vascular tumours and mesenchymal hamartomas although malignancy in the form of hepatoblastoma is a possibility. While the diagnosis can be suspected antenatally (by ultrasound and MR scan), a precise diagnosis is often difficult due to the complexity of the tumours. Inutero development of such tumours may be associated with polyhydramnios, fetal hydrops and extreme cases the maternal mirror syndrome. Postnatal symptoms may include abdominal distension, cardiac failure, consumptive coagulopathy and bleeding due to tumour rupture, but is dependent on the nature of the actual tumour. Treatment options may include watchful waiting, surgical resection, hepatic artery embolisation/ligation and chemotherapy.
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Affiliation(s)
- Erica Makin
- Department of Paediatric Surgery, King's College Hospital, London SE5 9RS, United Kingdom
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11
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Sebire NJ, Jauniaux E. Fetal and placental malignancies: prenatal diagnosis and management. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2009; 33:235-244. [PMID: 19009536 DOI: 10.1002/uog.6246] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Fetal and placental malignancies are rare complications during pregnancy, but when they occur they may present significant challenges for the perinatology team. Owing to their rarity, there is limited information on many of these entities, with much data derived from individual case reports or small case series. Prenatal diagnosis of these entities is rare and inconsistent, usually in the form of isolated case reports. In the majority of fetal tumors, prenatal features are those of a mass lesion, with or without other non-specific features of fetal compromise such as polyhydramnios, fetal hydrops or intrauterine death, the final diagnosis in most cases being based on postnatal pathological examination.Expectant management is almost always indicated antenatally, with serial ultrasound examinations performed to detect rapid enlargement, metastasis or secondary fetal complications, such as non-immune hydrops, which may require intervention. Delivery should be planned in a specialist center in conjunction with pediatric surgeons and oncologists to allow appropriate neonatal management. Placental malignancy is most commonly in the form of gestatational trophoblastic disease, which requires assessment and management in specialist centers.
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Affiliation(s)
- N J Sebire
- Department of Paediatric Pathology, Great Ormond Street Hospital, London, UK
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Catanzarite V, Hilfiker M, Daneshmand S, Willert J. Prenatal diagnosis of fetal hepatoblastoma: case report and review of the literature. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2008; 27:1095-1098. [PMID: 18577676 DOI: 10.7863/jum.2008.27.7.1095] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hepatoblastoma is the most common liver malignancy in childhood. The reported incidence is 11.2 cases per 1 million during the first year of life. Genetic predispositions include Beckwith-Wiedemann syndrome and familial polyposis. The prognosis depends on the extent of tumor spreading at the time of initial treatment, which typically includes chemotherapy and surgery. Imaging of hepatoblastoma has only rarely been reported prenatally. Here we report a recent case with a successful outcome and discuss issues of differential diagnosis and treatment.
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Affiliation(s)
- Val Catanzarite
- Department of Maternal-Fetal Medicine, Sharp Mary Birch Hospital for Women, and San Diego Perinatal Center, San Diego, California 92123, USA.
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13
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Abstract
Placental pathology continues to be an underutilized, undertaught, and inadequately handled surgical subspecialty. The requests for placental pathology are soaring, due partly to demands from obstetricians and to the litigious environment in which they practice, and to improved obstetrical care leading to pregnancies in medically challenging situations. Evaluation of the placenta requires a good understanding of the questions and issues concerning both the fetus/infant and the mother. Information from placental pathology can be critical in early neonatal care and in reproductive planning for the family, and it can provide risk assessment for neurologic outcome of the infant. A comfortable interaction among the obstetric staff, mothers, and pathologists often obviates need for legal intervention in unexpected pregnancy outcomes. Some critical pathologic features that involve maternal and fetal management are illustrated herein. A template for gross examination and a few critical histopathologic diagnostic features with clincopathologic correlation are included.
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Affiliation(s)
- Drucilla J Roberts
- Department of Pathology, Massachusetts General Hospital, 55 Fruit St, Boston, MA 02115, USA.
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14
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Roberts DJ, Oliva E. Clinical significance of placental examination in perinatal medicine. J Matern Fetal Neonatal Med 2006; 19:255-64. [PMID: 16753764 DOI: 10.1080/14767050600676349] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Complete pathologic evaluation of the placenta provides valuable information for perinatal care for the obstetrician, neonatologist, pediatrician, and family. The histopathology of the placenta can answer specific questions about in utero insults, give insight into management of subsequent pregnancies, and provide an assessment of the newborn risk. Placental pathology has been a key litigious informant in inferring timing of insults. Despite these well known advantages of placental pathologic examination, it remains an under-utilized part of perinatal medicine. This stems from a historically under-taught part of surgical and autopsy pathology resulting in inadequate reporting. This review will focus on the utility of the placental examination for fetal and maternal well-being. This review will be restricted to singleton births.
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Affiliation(s)
- Drucilla J Roberts
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
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15
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Abstract
The diagnosis and detection of some forms of liver and bile duct disease have become possible since the adoption of routine fetal ultrasound scanning in the UK, and the remarkable advances in molecular biological techniques. Nevertheless, although antenatal detection may well have improved, it remains difficult to offer a specific diagnosis, much less a prognosis, in most cases. Cystic dilatation of the biliary tree is probably the most common finding. This may be due to cystic choledochal malformations or, occasionally but crucially, biliary atresia. Postnatal investigations (such as ultrasonography, magnetic resonance cholangiography and liver histology) must take the latter possibility into account, as early surgery is the key to a successful outcome following reconstructive biliary surgery. Antenatally diagnosed liver tumours are usually of vascular origin and have an unpredictable natural history. Some may cause fetal cardiac failure and are candidates for in-utero intervention, but in all likelihood, a large proportion will resolve without specific therapy.
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Affiliation(s)
- Mark Davenport
- Department of Paediatric Surgery, King's College Hospital, Denmark Hill, London SE5 9RS, UK.
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Gray SG, Kytölä S, Matsunaga T, Larsson C, Ekström TJ. Comparative genomic hybridization reveals population-based genetic alterations in hepatoblastomas. Br J Cancer 2000; 83:1020-5. [PMID: 10993649 PMCID: PMC2363571 DOI: 10.1054/bjoc.2000.1390] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Hepatoblastoma is a malignant paediatric liver tumour. In order to approach the genetic background of this malignancy we have screened a panel of eighteen cases from Europe and Japan for chromosomal imbalances using comparative genomic hybridization (CGH). The most frequent losses included chromosomal regions 13q21-q22 (28%) and 9p22-pter (22%), while the most frequent gains occurred on 2q23-q24 (33%), 20q (28%) and 1q24-q25 (28%). A significant difference in CGH alterations between the tumours from patients of Caucasian and Japanese was revealed where loss of 13q was found only in the Japanese samples. In conclusion, the findings indicate several candidate regions for suppressor genes and oncogenes potentially involved in the hepatoblastomas of different ethnic origin.
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Affiliation(s)
- S G Gray
- Laboratory for Molecular Development and Tumor Biology, Experimental Alcohol and Drug Addiction Research Section, Dept. of Clinical Neuroscience, Karolinska Institute, CMM, L8 01, Stockholm, S-171 76, Sweden
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Dargent JL, Verdebout JM, Barlow P, Thomas D, Hoorens A, Goossens A. Hepatocellular adenoma of the placenta: report of a case associated with maternal bicornuate uterus and fetal renal dysplasia. Histopathology 2000; 37:287-9. [PMID: 10971709 DOI: 10.1046/j.1365-2559.2000.01020-5.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Ohyama M, Ijiri R, Tanaka Y, Kato K, Aida N, Ohnuma K, Sho N, Masuno M, Misugi K. Congenital primitive epithelial tumor of the liver showing focal rhabdoid features, placental involvement, and clinical features mimicking multifocal hemangioma or stage 4S neuroblastoma. Hum Pathol 2000; 31:259-63. [PMID: 10685646 DOI: 10.1016/s0046-8177(00)80232-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We describe an unusual case of congenital primitive epithelial tumor of the liver with focal rhabdoid features. The present case is unique and informative in the following aspects: (1) a first case of congenital epithelial tumor of the liver with no hepatocytic differentiation but focal rhabdoid features, (2) clinical similarities to multicentric hemangioma or stage 4S neuroblastoma, (3) diagnosis obtained from histological examination of the placenta immediately after birth.
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Affiliation(s)
- M Ohyama
- Division of Neonatology, Medical Genetics of Kanagawa Children's Medical Center, Yokohama, Japan
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