Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association最新文献

{"title":"Pulmonary endodermal tumor resembling fetal lung: report of a case in a 14-year-old girl.","authors":"S P Singh,&nbsp;G E Besner,&nbsp;G M Schauer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This report describes the clinical and histologic features of a pulmonary tumor in a 14-year-old girl that is most consistent with a rare entity described in the literature as \"pulmonary endodermal tumor resembling fetal lung\" (PET). This tumor is composed of glycogen-rich columnar cells forming complex glands with focal festooning and mitotic activity, admixed with solid \"morules\" of cells with eosinophilic cytoplasm and focal nuclear clearing. Patchy tumor necrosis and a bland stroma were also present. Immunoreactivity for carcinoembryonic antigen (CEA), alpha 1-antichymotrypsin, and 12E7 was present in glandular cells and for human chorionic gondatropin (HCG), alpha 1-antichymotrypsin, and 12E7 in morular cells. Ultrastructural features are those of an epithelial tumor. Related entities have been called \"pulmonary blastoma lacking sarcomatous elements\" and \"adenocarcinoma of fetal lung type.\" Most cases of PET have occurred in adults, and the histologic features thought to have prognostic significance in small published series are applied to our case, in which the patient remains well and without evidence of tumor recurrence or metastasis for 28 months following local resection as the sole treatment.</p>","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"17 6","pages":"951-8"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intracardiac epithelial cyst associated with esophageal atresia.","authors":"I Scheimberg,&nbsp;S Rose,&nbsp;M Malone","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We describe an intracardiac epithelial cyst in association with esophageal atresia. The case is unusual in that the cyst was symptomatic and ultimately fatal. In addition, there was no other cardiac anomaly, although a range of extrathoracic malformations was present. There are three types of intracardiac epithelial cysts: congenital polycystic tumor of the atrioventricular node, a cyst as part of a teratoma, and, as in this case, a gross cyst. All of them are very rare. The association of a cardiac cyst and esophageal atresia in our case supports the theory that intracardiac cysts are derived from misplaced foregut.</p>","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"17 6","pages":"945-9"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Embolism of fetal brain tissue to the lungs.","authors":"R Drut","doi":"10.1080/15513819709168765","DOIUrl":"https://doi.org/10.1080/15513819709168765","url":null,"abstract":"","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"17 6","pages":"987"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/15513819709168765","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Human eosinophils are not pigment-laden macrophages in Pseudomelanosis duodeni.","authors":"A M Dvorak","doi":"10.1080/15513819709168766","DOIUrl":"https://doi.org/10.1080/15513819709168766","url":null,"abstract":"","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"17 6","pages":"987-9"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/15513819709168766","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hepatoblastoma: the Indiana experience with preoperative chemotherapy for inoperable tumors; clinicopathological considerations.","authors":"S A Heifetz,&nbsp;M French,&nbsp;M Correa,&nbsp;J L Grosfeld","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Analysis of the prognostic importance of various clinicopathological parameters in 17 hepatoblastomas (HBs) confirmed the utility of preoperative chemotherapy to convert inoperable to resectable tumors. There was no significant survival advantage for patients who underwent initial tumor resection compared with those resected following chemotherapy, although complete resection, with or without prior chemotherapy, was critical for cure. Young age was associated with better survival but did not correlate with histologic subtype or clinical stage. A relationship between low initial alpha-fetoprotein (AFP) level and tumor resectability was noted, perhaps related to tumor size, but tumor location was of greater importance than size in determining resectability. Neither the mean proportions of fetal and embryonal epithelium, nor their mitotic activity, nor the presence of vascular invasion in the prechemotherapy biopsy specimens was predictive of outcome, but the low mitotic activity of the fetal component correlated with ultimate resectability. On the other hand, although complete resection was necessary for survival, histologic examination of postchemotherapy specimens had additional predictive value; the presence of vascular invasion, the amount of viable mesenchyme, the extent of tumor necrosis, the proportion of embryonal epithelium, and the mitotic activity of the epithelial component in postchemotherapy resection specimens were each predictive of outcome. Although the presence of osteoid was not predictive, both the proportion of HBs that contained osteoid and the extent of mature mesenchymal tissues within individual HBs were increased by chemotherapy, suggesting that maturation of previously immature clones had been induced. We conclude that although complete resectability remains the fundamental goal of therapy, evaluation of the clinicopathologic characteristics that we have found to be predictive of outcome may permit tailoring of therapeutic regimens to individual patients; those whose tumors are deemed likely to respond well may require less toxic preoperative chemotherapy, and those deemed likely to progress in spite of complete resection may be considered for more aggressive postoperative regimens.</p>","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"17 6","pages":"857-74"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Letters to the Editor: Diagnosis of Chorioamnionitis","authors":"K. H. Hoeven, S. Factor","doi":"10.1080/15513819709168764","DOIUrl":"https://doi.org/10.1080/15513819709168764","url":null,"abstract":"","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"23 1","pages":"986-986"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75401006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of respiratory syncytial virus nucleic acid in archival postmortem tissue from infants.","authors":"H. Cubie, L. Duncan, L. Marshall, N. Smith","doi":"10.1080/15513819709168756","DOIUrl":"https://doi.org/10.1080/15513819709168756","url":null,"abstract":"Archival lung tissue from 99 cases of sudden infant death syndrome (SIDS) and from 58 matched comparison cases with known causes of death was studied. Sections were examined by in situ hybridization (ISH) using a cocktail of three synthetic oligonucleotides with sequences chosen from the published sequence of the nucleoprotein gene of respiratory syncytial virus (RS virus). The oligonucleotides were end-labelled with dinitrophenyl (DNP) or digoxigenin (DIG) and hybrids were detected immunocytochemically. RS virus nucleic acid was detected in 24 cases of SIDS (24%) and in 11 (19%) of the comparison group. Specificity was confirmed using a DIG-labeled cloned probe covering the whole of the nucleoprotein gene sequence. With one exception, the same results were obtained. Reverse transcriptase-polymerase chain reaction (RT-PCR) was used to confirm the specificity of these results. When matched for age and month and year of death, 76 SIDS cases and 38 controls could be compared. Twenty-one SIDS cases (27.6%) and seven comparison cases (18.4%) contained detectable RS virus sequences by ISH, with a higher detection rate in winter in both groups. The differences were not significant and reflected the seasonal pattern of RS virus infection in the community rather than a causal relationship of RS virus with SIDS. Detection of RS viral mRNA through the summer months suggests that persistence is possible.","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"21 1","pages":"927-38"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76343204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of terminal deoxynucleotidyl transferase (TdT) in nonhematopoietic small round cell tumors of children.","authors":"R. Mathewson, C. Kjeldsberg, S. Perkins","doi":"10.1080/107710497174291","DOIUrl":"https://doi.org/10.1080/107710497174291","url":null,"abstract":"In the differential diagnosis of small round cell tumors (SRCTs), terminal deoxynucleotidyl transferase (TdT) is often used as a marker for lymphoblastic lymphomas and leukemias. However, the specificity of TdT using the avidin-biotin-immunoperoxidase (ABC) method is not well documented. To address this issue, we stained paraffin-embedded biopsy specimens of 64 cases of childhood SRCTs using the ABC method with anti-TdT. For any TdT-positive tumors, an additional antibody panel for lymphoid markers was applied. Two patterns of TdT positivity were observed: (1) tumor specific, consisting of strong to moderate nuclear staining, and (2) scattered positive lymphoid cells, usually in a perivascular location and expressing T-cell markers. Analysis showed that 7 of 10 medulloblastomas stained with TdT in a tumor-specific pattern (4 cases moderately to strongly positive in 75-100% of tumor cells, 3 cases weakly to moderately positive in 25-50% of cells). Also, 1 of 19 rhabdomyosarcomas and 1 of 8 Ewing's sarcomas showed moderate to strong tumor-specific TdT staining in 100 and 10% of cells, respectively. Scattered TdT-positive lymphoid cells were observed in 27% of these 64 SRCTs. These findings emphasize that TdT positivity should not be relied upon exclusively for making a diagnosis of lymphoblastic leukemia or lymphoma or ruling out other SRCTs.","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"30 1","pages":"835-44"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82400915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intracardiac epithelial cyst associated with esophageal atresia.","authors":"I. Scheimberg, Simon Rose, M. Malone","doi":"10.1080/15513819709168758","DOIUrl":"https://doi.org/10.1080/15513819709168758","url":null,"abstract":"We describe an intracardiac epithelial cyst in association with esophageal atresia. The case is unusual in that the cyst was symptomatic and ultimately fatal. In addition, there was no other cardiac anomaly, although a range of extrathoracic malformations was present. There are three types of intracardiac epithelial cysts: congenital polycystic tumor of the atrioventricular node, a cyst as part of a teratoma, and, as in this case, a gross cyst. All of them are very rare. The association of a cardiac cyst and esophageal atresia in our case supports the theory that intracardiac cysts are derived from misplaced foregut.","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"105 1","pages":"945-9"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80703530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Craniopagus parasiticus: a case illustrating its relationship to craniopagus conjoined twinning.","authors":"D B Aquino,&nbsp;C Timmons,&nbsp;D Burns,&nbsp;A Lowichik","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A case of craniopagus parasiticus is described in which the parasitic twin is more fully developed anatomically than in any of the previous reports. Somatic and placental vascular anastomoses between the twins and hypoplasia of the umbilical cord of the parasite were also observed. These findings support the hypothesis that craniopagus parasiticus results from compromise of the blood supply to one of a pair of craniopagus conjoined twins.</p>","PeriodicalId":79453,"journal":{"name":"Pediatric pathology & laboratory medicine : journal of the Society for Pediatric Pathology, affiliated with the International Paediatric Pathology Association","volume":"17 6","pages":"939-44"},"PeriodicalIF":0.0,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20284698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}