{"title":"Primary Intrarenal Yolk Sac Tumor in a Child: A Case Report with Summary of Prior Published Cases.","authors":"Oindrila Das, Raktim Mukherjee, Debalina Karmakar, Kalyani Saha Basu, Uttara Chatterjee","doi":"10.1080/15513815.2025.2532578","DOIUrl":"10.1080/15513815.2025.2532578","url":null,"abstract":"<p><strong>Background: </strong>Renal tumors are common primary tumors in children with Wilms tumor being the most prevalent one. Others include clear cell sarcoma kidney, congenital mesoblastic nephroma and rhabdoid tumors. Extragonadal germ cell tumors especially primary intrarenal yolk sac tumor (YST) is extremely uncommon. Only 6 cases of primary intrarenal YST have been reported so far.</p><p><strong>Case report: </strong>A 2-year-old boy presented with a left sided abdominal mass. Imaging studies were consistent with Wilms tumor. He received chemotherapy followed by nephrectomy. Histopathological examination revealed a primary intrarenal yolk sac tumor.</p><p><strong>Conclusion: </strong>This case report emphasizes the need to include germ cell tumors, particularly YSTs, in the differential diagnosis of pediatric renal tumors.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"488-494"},"PeriodicalIF":0.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144627612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kaouther Nasri, Nadia Ben Jamaa, Soumeya Siala Gaigi
{"title":"Neural Tube Defects in Tunisia: Epidemiological, Biochemical and Genetic Factors.","authors":"Kaouther Nasri, Nadia Ben Jamaa, Soumeya Siala Gaigi","doi":"10.1080/15513815.2025.2514602","DOIUrl":"10.1080/15513815.2025.2514602","url":null,"abstract":"<p><p><b>Introduction:</b> This study resumed epidemiological, biochemical and genetic factors associated with the occurrence of neural tube defects in Tunisia. <b>Material and methods:</b> This work builds on our previously published investigations, utilizing data retrospectively collected during (1991-2011), and prospectively collected between January 1, 2012, and December 30, 2013. <b>Results:</b> Our studies have demontrated that plasma folate, vitamin B12 and vitamin D concentrations were significantly lower in cases compared with controls. Homocysteine concentrations were significantly higher in cases compared with controls. Cases had higher concentrations of heptadecanoic acid, linolelaidic acid and arachidonic acid/(eicosapentaenoic acid + docosahexaenoic acid) ratio than controls. Nervonic acid, arachidonic acid, adrenic acid, Eicosapentaenoic Acid, Docosahexaenoic Acid, and omega 3 polyunsatured fatty acids concentrations were significantly lower in cases. <b>Conclusion:</b> Such research would contribute to a better understanding of the biochemical and genetic variances in mothers, highlighting the suitable status of vitamins, homocysteine, lipid profile, and genotype.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"339-356"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144259264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationship Between Maternal Serum Level of Bilirubin with Sporadic and Recurrent Miscarriage: A Bidirectional 2-Sample Mendelian Randomization Study.","authors":"Sai Kong, Yiwen Wang, Mingyu Yu, Zhigang Zhang, Yanping Qian, Yong Wu, Manyin Zhai, Lijuan Jiang","doi":"10.1080/15513815.2025.2495683","DOIUrl":"10.1080/15513815.2025.2495683","url":null,"abstract":"<p><p><b>Background:</b> The association between maternal serum bilirubin levels and miscarriage risk remains unclear. This study investigates the causal link between maternal bilirubin levels and both sporadic and recurrent miscarriage using Mendelian randomization (MR) and linkage disequilibrium score regression (LDSC). <b>Methods:</b> A bidirectional two-sample MR analysis examined genetic associations between maternal serum bilirubin (direct and total) and miscarriage. Genetic instruments were derived from genome-wide association studies (GWAS). LDSC was used to assess shared genetic architecture. Odds ratios (OR) and <i>p</i> values were employed to determine statistical significance. <b>Results:</b> Elevated maternal direct bilirubin levels were significantly associated with sporadic miscarriage (OR = 1.028, <i>p</i> = 0.019) and recurrent miscarriage (OR = 1.016, <i>p</i> = 0.005). Similarly, maternal total bilirubin was linked to sporadic miscarriage (OR = 1.022, <i>p</i> = 0.030) and recurrent miscarriage (OR = 1.013, <i>p</i> = 0.007). In contrast, reverse MR showed no significant association between maternal bilirubin level and miscarriage. Furthermore, LDSC confirmed no shared genetic architecture. <b>Conclusion:</b> Elevated maternal serum bilirubin may increase miscarriage risk, warranting further investigation.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"287-299"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144095539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aidan Clement, Art Mendoza, Chris Wixom, Peilin Zhang
{"title":"Umbilical Cord Hypercoiling with Stricture and Intrauterine Fetal Death: Association with Maternal Factors and Implications for Pathogenesis.","authors":"Aidan Clement, Art Mendoza, Chris Wixom, Peilin Zhang","doi":"10.1080/15513815.2025.2507250","DOIUrl":"10.1080/15513815.2025.2507250","url":null,"abstract":"<p><p><b>Introduction:</b> Hypercoiling of umbilical cord with stricture (HCS) is one of the most common etiologies of intrauterine fetal death (IUFD). Whether Wharton's Jelly close to fetal abdomen plays roles in pathogenesis is controversial. <b>Methods:</b> Fetal autopsies were reviewed between 2015 and 2022 and HCS with maternal and fetal factors were examined to determine if these factors were relevant to HCS and IUFD. <b>Results:</b> Totally 389 fetal autopsies were reviewed and 75 cases of HCS were identified. HCS was found more frequently in older (maternal age ≥35) multiparous women with longer cords and increased umbilical coiling index (UCI) (both <i>p</i> < 0.01). There was no significant difference in maternal race/ethnicity, BMI, fetal sex, genetics, seasonality, multiple pregnancies or anomalies in HCS. <b>Conclusions:</b> HCS appeared related to maternal characteristics and it occurred more frequently in older multiparous women associated with longer cords. Lack or poorly developed Wharton's jelly close to fetal abdomen plays important role in IUFD.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"300-311"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144112573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sevim Tuncer Can, Hakan Golbasi, Burak Bayraktar, Berk Ozyilmaz, Ibrahim Omeroglu, Raziye Torun, Ceren Saglam, Ilayda Gercik, Orhan Nural, Hale Ankara Aktas, Atalay Ekin
{"title":"Prenatal Findings and Perinatal Outcomes of Rare Autosomal Trisomies: A Retrospective Cohort Study.","authors":"Sevim Tuncer Can, Hakan Golbasi, Burak Bayraktar, Berk Ozyilmaz, Ibrahim Omeroglu, Raziye Torun, Ceren Saglam, Ilayda Gercik, Orhan Nural, Hale Ankara Aktas, Atalay Ekin","doi":"10.1080/15513815.2025.2520251","DOIUrl":"10.1080/15513815.2025.2520251","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the incidence, prenatal findings, and pregnancy outcomes of rare autosomal trisomies (RATs).</p><p><strong>Methods: </strong>This retrospective cohort study included cases diagnosed <i>via</i> chorionic villus sampling, amniocentesis, or fetal cord blood sampling. Data collected included maternal demographics, gestational age, first-trimester screening results, ultrasound findings, genetic analyses, and pregnancy outcomes.</p><p><strong>Results: </strong>A total of 354 cases of common trisomies and 18 cases of RATs (trisomies 2, 5, 7, 8, 9, 12, 20, and 22) were identified. Common trisomies were associated with higher maternal age (<i>p</i> = 0.003) and advanced maternal age rates (≥35 years) (<i>p</i> = 0.009). Fetal (61.1% vs. 1.7%) and confined placental mosaicism (22.2% vs. 0.3%) were significantly more frequent in RATs (<i>p</i> < 0.001, for all). Ultrasound anomalies were observed in 11 of 18 (61.1%) RATs, with trisomy 22 frequently involving craniofacial and cardiac abnormalities.</p><p><strong>Conclusion: </strong>RATs display diverse clinical outcomes. Mosaicism and ultrasound findings are critical for assessing prognosis and guiding clinical management.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"357-371"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gizem Kavram, Beril Yaşa, Elmas Zeynep İnce, Elif Kirit, Meltem Bor, Leyla Bilgin, Mustafa Törehan Aslan, Emine Asuman Çoban
{"title":"Maternal Systemic Lupus Erythematosus and Neonatal Outcomes: A Tertiary Single Center Hospital Experience in Turkey.","authors":"Gizem Kavram, Beril Yaşa, Elmas Zeynep İnce, Elif Kirit, Meltem Bor, Leyla Bilgin, Mustafa Törehan Aslan, Emine Asuman Çoban","doi":"10.1080/15513815.2025.2507276","DOIUrl":"10.1080/15513815.2025.2507276","url":null,"abstract":"<p><strong>Introduction: </strong>Systemic lupus erythematosus (SLE) is an autoimmune disease that predominantly affects women of childbearing age. SLE is associated with many maternal and neonatal morbidities. The aim of this study was to evaluate the neonatal outcomes of infants born to mothers with SLE.</p><p><strong>Methods: </strong>This retrospective cohort study included data on 57 Turkish mother-infant pairs over a 10-year period. Demographic data of the newborns and the presence of neonatal morbidities such as cardiovascular, hematological involvement, and congenital anomalies were the primary outcomes of the study.</p><p><strong>Results: </strong>The median maternal age and gestational age at delivery were 30 (22-43) years and 37.6 (24.1-40.9) weeks, respectively. Thirteen (22.8%) of the mothers were primigravid and 59.6% (<i>n</i> = 34) of the deliveries were by cesarean section. Anti-Ro, anti-La, and anti-dsDNA autoantibodies were present in 38.6% (<i>n</i> = 22) of the mothers. Only one woman developed pre-eclampsia. Nine (15.8%) of the newborns were preterm, 8 (14%) were intrauterine growth restricted. The mean birth weight of the infants was 2846 (675-4240) grams. Three infants (5.2%) required resuscitation in the delivery room. One infant (1.8%) developed a complete atrioventricular block and 1 (1.8%) had esophageal atresia. None of the infants developed the typical rash of neonatal lupus.</p><p><strong>Conclusions: </strong>SLE is an important systemic disease that can complicate pregnancy and neonatal outcomes. Optimal multidisciplinary antenatal care of the mother is essential to improve maternal and fetal outcomes.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"322-332"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144182756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M Sarreau, F Pelluard, S Martin Berenguer, F Sauvestre, F Coatleven, F Cardinaud, L Guibaud, S Collardeau Frachon
{"title":"Extensive Cystic lymphatic malformation with PIK3CA-Related Overgrowth Spectrum: Prenatal Diagnosis and Autopsy Findings in 3 Fetal Cases.","authors":"M Sarreau, F Pelluard, S Martin Berenguer, F Sauvestre, F Coatleven, F Cardinaud, L Guibaud, S Collardeau Frachon","doi":"10.1080/15513815.2025.2496413","DOIUrl":"10.1080/15513815.2025.2496413","url":null,"abstract":"<p><strong>Objective: </strong>To describe and discuss prenatal imaging and post-termination pathological features of extensive cystic lymphatic malformation (CLM) associated with PIK3CA mutation of PROS.</p><p><strong>Methods: </strong>We reviewed prenatal imaging and pathological features of three cases of extensive CLM involving the inferior limb extending on the body diagnosed in the second trimester, which were terminated based on the anatomical extension of this vascular malformation.</p><p><strong>Results: </strong>Major asymmetrical soft tissue limb hypertrophy associated with extremities anomalies as well as cystic soft tissue infiltration extending to the body were present in the three cases without any cerebral anomalies. Foetopathological examination performed after TOP confirmed prenatal features, which were suggestive of PROS. Molecular analysis of affected tissues revealed an activating somatic mutation of the PIK3CA gene in all cases.</p><p><strong>Conclusion: </strong>Such prenatal diagnosis is crucial for prenatal counseling in the light of promising targeted therapy leading to orientate the couple.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"411-427"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144477678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamic Changes of Plasma Mitochondrial DNA in Neonates with Acute Respiratory Distress Syndrome.","authors":"Xiaoping Fan, Jiang Junsheng","doi":"10.1080/15513815.2025.2525144","DOIUrl":"10.1080/15513815.2025.2525144","url":null,"abstract":"<p><p><b>Background:</b> This study aimed to analyze mitochondrial DNA levels in neonates with neonatal acute respiratory distress syndrome(ARDS). <b>Method:</b> Neonates diagnosed with ARDS from January 2021 to January 2023 were prospectively included as a study group. The control group was selected from healthy neonates during the same period. Real-time quantitative PCR was used to quantity plasma mtDNA levels. Peripheral blood mononuclear cells were isolated, and the expression levels of cGAS and STING mRNA were measured by real-time quantitative PCR. Peripheral blood mononuclear cells were co-cultured with mtDNA, and ELISA was used to determine the levels of serum IL-6, IL-23, and IFN-γ. Pearson correlation analysis was used to assess the correlation between serum mtDNA and serum IL-6, IL-23, and IFN-γ levels. <b>Results:</b> this study included 25 with mild ARDS, 15 with moderate ARDS, and 10 with severe ARDS, alongside 25 neonates in healthy control group. Compared with the control group, plasma mtDNA levels, serum levels cGAS-STING mRNA, IL-6, IL-23, and IFN-γ were significantly increased in the ARDS groups (<i>p</i> < 0.05). Compared with the mild ARDS group, plasma mtDNA, serum cGAS-STING mRNA, IL-6, IL-23, and IFN-γ levels were significantly increased in the moderate and severe ARDS groups (<i>p</i> < 0.05). Furthermore, compared with day 1, plasma mtDNA, serum cGAS-STING mRNA, IL-6, IL-23, and IFN-γ levels significantly increased on day 3 and significantly decreased on day 7 in all ARDS groups (<i>p</i> < 0.05). Pearson correlation analysis showed that mtDNA levels were correlated with serum IL-6, IL-23, IFN-γ, and cGAS-STING mRNA levels (<i>p</i> < 0.05). <b>Conclusion:</b> Our data demonstrate a potential role of mtDNA with ARDS patients, which may produce inflammatory mediators by activating the cGAS/STING signaling pathway.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"372-382"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"BCOR-Altered Sarcoma in a 6-Month-Old: Diagnostic Challenges and Morphological Insights.","authors":"Shiv Shankar Verma, Lavleen Singh, Aditya Gupta","doi":"10.1080/15513815.2025.2512344","DOIUrl":"10.1080/15513815.2025.2512344","url":null,"abstract":"<p><p>BCOR-altered sarcomas (BAS) are a subset of undifferentiated small round cell sarcomas characterized by alterations involving the BCOR gene. These tumors often pose diagnostic challenges due to their morphological overlap with other pediatric neoplasms. We report a case of BAS in an infant presenting with bilateral lower limb weakness. Imaging revealed a large multilobulated retroperitoneal mass. Histopathology showed prominent rhabdoid cells, alongside small round cells and spindle cells in a fascicular pattern. The tumor was positive for BCOR, Cyclin D1, TLE-1, BCL-6, and SATB2, while INI1 and BRG expression were retained. Fluoresence in situ hybridization, ruled out BCOR::CCNB3 fusion and NTRK 1/2/3 rearrangements. Based on the histopathological, immunophenotypic, and molecular profile, a diagnosis of BAS was established. The patient was started on a Ewing sarcoma chemotherapy regimen, showing a favourable response. This case highlights that BAS may rarely show a prominent rhabdoid feature and utility of ancillary diagnostic modalities.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"333-338"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144210104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Red Blood Cell Disorders in Newborns: Bridging Traditional and Modern Diagnostics.","authors":"Vida Shirani Asl, Gholamhossein Tamaddon","doi":"10.1080/15513815.2025.2503178","DOIUrl":"10.1080/15513815.2025.2503178","url":null,"abstract":"<p><strong>Background: </strong>Neonatal red blood cell (RBC) disorders encompass a diverse range of inherited and acquired conditions with significant clinical implications. Due to the unique morphological and biochemical characteristics of neonatal erythrocytes, accurate diagnosis is often challenging but critical for effective management.</p><p><strong>Objective: </strong>This review aims to synthesize current knowledge on the diagnosis of neonatal RBC disorders, highlighting the integration of traditional morphological analysis with advanced biochemical and molecular techniques.</p><p><strong>Methods: </strong>A comprehensive literature review was conducted to examine diagnostic approaches to neonatal enzymopathies, membrane disorders, and hemoglobinopathies. The roles of peripheral blood smear (PBS) analysis, enzyme activity assays, and genetic testing-including next-generation sequencing (NGS)-were evaluated in the context of current clinical practice.</p><p><strong>Discussion: </strong>Peripheral blood smear examination remains a foundational tool for identifying characteristic RBC morphologies. Enzymatic deficiencies such as G6PD and pyruvate kinase deficiency, membrane disorders including hereditary spherocytosis and elliptocytosis, and hemoglobinopathies such as thalassemias and sickle cell disease require integrated diagnostic strategies. Advances in molecular diagnostics have enhanced diagnostic precision and expanded the ability to perform early, genotype-driven interventions.</p><p><strong>Conclusions: </strong>A multidisciplinary diagnostic approach that combines morphology, biochemistry, and genetics is essential for the accurate identification and management of neonatal RBC disorders. Bridging traditional microscopy with modern genomic tools offers the potential for earlier diagnosis, personalized treatment, and improved clinical outcomes in neonatal hematology.</p>","PeriodicalId":50452,"journal":{"name":"Fetal and Pediatric Pathology","volume":" ","pages":"383-410"},"PeriodicalIF":0.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144095537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}