2023
KRAS mutation in primary ovarian serous borderline tumors correlates with tumor recurrence
McHenry A, Rottmann D, Buza N, Hui P. KRAS mutation in primary ovarian serous borderline tumors correlates with tumor recurrence. Virchows Archiv 2023, 483: 71-79. PMID: 37219599, DOI: 10.1007/s00428-023-03564-z.Peer-Reviewed Original ResearchConceptsOvarian serous borderline tumorsSerous borderline tumorsNon-invasive implantsDisease-free survivalKRAS mutationsTumor recurrenceExtraovarian implantsAdverse disease-free survivalWorse disease-free survivalHigher stage diseaseKRAS mutation testingHigher tumor stageWild-type KRASBRAF V600E mutationBRAF mutational analysisBorderline tumorsClinical outcomesHistological subtypesTumor stageBRAF mutationsUseful biomarkerInvasive implantsTumors correlatesV600E mutationMutational status
2022
Intraductal papillary neoplasm of the bile duct: Cytomorphologic and molecular features
Stendahl K, Gilani SM, Basturk O, Hui P, Sigel C, Cai G. Intraductal papillary neoplasm of the bile duct: Cytomorphologic and molecular features. Cancer Cytopathology 2022, 131: 37-49. PMID: 36041224, PMCID: PMC9812877, DOI: 10.1002/cncy.22637.Peer-Reviewed Original ResearchConceptsIntraductal papillary neoplasmBile ductCytomorphologic featuresFine granular chromatinPapillary neoplasmVacuolated cytoplasmGranular chromatinCase of IPNBColumnar cellsComplex papillary architectureOriginal cytological diagnosisCommon bile ductCharacteristic cytomorphologic featuresHigh-grade dysplasiaMolecular featuresBackground mucinKRAS testingHepatic ductRetrospective studyAcute inflammationHistopathologic confirmationKRAS mutationsPapillary architecturePapillary clustersCytological diagnosisSignificance of KRAS mutation testing in biliary brushing cytology specimens: A 10‐year retrospective review
Sun T, Zuo T, Hui P, Cai G. Significance of KRAS mutation testing in biliary brushing cytology specimens: A 10‐year retrospective review. Cancer Cytopathology 2022, 130: 558-565. PMID: 35417072, DOI: 10.1002/cncy.22579.Peer-Reviewed Original ResearchConceptsExtrahepatic biliary stenosisKRAS mutation testingKRAS mutational analysisKRAS mutationsBiliary stenosisBiliary ductsInstitutional review board approvalResults of cytologyPancreatic duct adenocarcinomaBiliary brushing cytologyReview board approvalCytological diagnostic categoriesRetrospective reviewBiliary stricturesDuct adenocarcinomaAbsolute riskCytology examinationDuct brushingsBiliary brushingsBrushing cytologyMalignant conditionsCytological diagnosisBoard approvalClinical practiceCytology specimens
2017
KRAS mutation of extraovarian implants of serous borderline tumor: prognostic indicator for adverse clinical outcome
Zuo T, Wong S, Buza N, Hui P. KRAS mutation of extraovarian implants of serous borderline tumor: prognostic indicator for adverse clinical outcome. Modern Pathology 2017, 31: 350-357. PMID: 29027536, DOI: 10.1038/modpathol.2017.121.Peer-Reviewed Original ResearchConceptsAtypical proliferative serous tumorNon-invasive implantsDisease-specific survivalSerous borderline tumorsHigh recurrence rateWorse disease-specific survivalStage IIIC diseaseKRAS mutationsInvasive implantsBRAF V600E mutationBorderline tumorsSerous tumorsRecurrence rateIIIC diseaseClinical outcomesHistological subtypesPrognostic indicatorExtraovarian implantsV600E mutationLow-grade serous carcinomaUnfavorable disease-specific survivalAdverse clinical outcomesHigher stage diseaseSignificant prognostic indicatorBRAF mutation frequency
2015
Diagnostic application of KRAS mutation testing in uterine microglandular proliferations
Hong W, Abi-Raad R, Alomari AK, Hui P, Buza N. Diagnostic application of KRAS mutation testing in uterine microglandular proliferations. Human Pathology 2015, 46: 1000-1005. PMID: 25997988, DOI: 10.1016/j.humpath.2015.03.010.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdultAgedAged, 80 and overBiopsyCell ProliferationCervix UteriDiagnosis, DifferentialDNA Mutational AnalysisEndometrial HyperplasiaEndometrial NeoplasmsFemaleHumansMiddle AgedMutationPredictive Value of TestsProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)Ras ProteinsConceptsKRAS mutation analysisEndometrial adenocarcinomaMicroglandular hyperplasiaMicroglandular patternKRAS mutationsCareful morphological assessmentEndometrial mucinous carcinomaKRAS mutation testingCases of EMAMutation analysisFrequent KRAS mutationsElectronic medical recordsDifferential diagnostic toolHigh mitotic activityEndometrial biopsyImmunohistochemical workupUterine cervixMucinous carcinomaClinical historyDiagnostic challengeDiagnostic dilemmaGlandular proliferationMucinous lesionsMedical recordsEAC cases
2014
KRAS mutation testing in clinical practice
Perincheri S, Hui P. KRAS mutation testing in clinical practice. Expert Review Of Molecular Diagnostics 2014, 15: 375-384. PMID: 25487540, DOI: 10.1586/14737159.2015.986102.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsKRAS mutation testingKRAS mutationsMetastatic colorectal carcinomaLung cancer patientsMutations of KRASCommon human malignanciesMutation testingCombinatorial therapeutic strategiesCancer patientsColorectal carcinomaThyroid cancerClinical aggressivenessClinical OncologyTherapeutic strategiesClinical practiceMolecular testingCytological specimensHuman malignanciesPrecision medicinePatientsCancerEssential biomarkersDownstream effectorsCurrent practiceMutations
2013
Frequent KRAS mutation in complex mucinous epithelial lesions of the endometrium
Alomari A, Abi-Raad R, Buza N, Hui P. Frequent KRAS mutation in complex mucinous epithelial lesions of the endometrium. Modern Pathology 2013, 27: 675-680. PMID: 24186144, DOI: 10.1038/modpathol.2013.186.Peer-Reviewed Original ResearchConceptsPositive predictive valueMucinous lesionsKRAS mutationsMucinous changeMucinous adenocarcinomaEndometrial mucinous carcinomaHigh positive predictive valueComplex atypical hyperplasiaRisk stratification algorithmAtypical complex hyperplasiaImportant prognostic indicatorFrequent KRAS mutationsKRAS mutation analysisComplex hyperplasiaHysterectomy specimensClinical progressionEndometrial lesionsMucinous carcinomaAtypical hyperplasiaPrognostic indicatorMucinous differentiationEpithelial lesionsCurettage casesStratification algorithmPredictive valueScreening for EGFR and KRAS mutations in non-small cell lung carcinomas using DNA extraction by hydrothermal pressure coupled with PCR-based direct sequencing.
Liu Y, Wu BQ, Zhong HH, Hui P, Fang WG. Screening for EGFR and KRAS mutations in non-small cell lung carcinomas using DNA extraction by hydrothermal pressure coupled with PCR-based direct sequencing. International Journal Of Clinical And Experimental Pathology 2013, 6: 1880-9. PMID: 24040454, PMCID: PMC3759496.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdenocarcinoma of LungAdultAgedAged, 80 and overBiopsyCarcinoma, Non-Small-Cell LungCarcinoma, Squamous CellDNA Mutational AnalysisErbB ReceptorsExonsFemaleGene FrequencyGenetic Predisposition to DiseaseGenetic TestingHumansLung NeoplasmsMaleMiddle AgedMutationParaffin EmbeddingPhenotypePolymerase Chain ReactionPrecision MedicinePredictive Value of TestsPressurePrognosisProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)Ras ProteinsTissue FixationYoung AdultConceptsNon-small cell lung carcinomaCore needle biopsyCell lung carcinomaKRAS mutationsNSCLC patientsSurgical resectionEGFR mutationsLung carcinomaNeedle biopsyKRAS mutation analysisTyrosine kinase inhibitorsKRAS gene mutationsDirect sequencingMutation analysisFemale patientsAdenocarcinoma componentLung cancerPatientsEGFRExon 19Kinase inhibitorsExon 18Gene mutationsStatistical significanceResectionKRAS Mutations are Associated With Specific Morphologic Features in Colon Cancer
Gunal A, Hui P, Kilic S, Xu R, Jain D, Mitchell K, Robert M, Kenney B. KRAS Mutations are Associated With Specific Morphologic Features in Colon Cancer. Journal Of Clinical Gastroenterology 2013, 47: 509-514. PMID: 23090042, DOI: 10.1097/mcg.0b013e3182703030.Peer-Reviewed Original ResearchConceptsKRAS mutation statusKRAS mutationsSpecific morphologic featuresColon cancerMorphologic featuresMutation statusAnti-epidermal growth factor receptor therapyDNA mismatch repair gene mutationsPeritumoral lymphocytic responseT3-T4 statusStage IV diseaseMismatch repair gene mutationsColon cancer resectionTime of resectionRight-sided locationRepair gene mutationsPearson χ2 testAdenocarcinoma morphologyKRAS testingCancer resectionLymphovascular invasionHistologic featuresReceptor therapyLymphocytic responseHistologic characteristicsIdentification of EGFR mutation, KRAS mutation, and ALK gene rearrangement in cytological specimens of primary and metastatic lung adenocarcinoma
Cai G, Wong R, Chhieng D, Levy GH, Gettinger SN, Herbst RS, Puchalski JT, Homer RJ, Hui P. Identification of EGFR mutation, KRAS mutation, and ALK gene rearrangement in cytological specimens of primary and metastatic lung adenocarcinoma. Cancer Cytopathology 2013, 121: 500-507. PMID: 23495083, DOI: 10.1002/cncy.21288.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdultAgedAged, 80 and overAnaplastic Lymphoma KinaseBiomarkers, TumorBone NeoplasmsCytodiagnosisDNA, NeoplasmErbB ReceptorsFeasibility StudiesFemaleGene RearrangementHumansIn Situ Hybridization, FluorescenceLiver NeoplasmsLung NeoplasmsMaleMiddle AgedMutationNeoplasm Recurrence, LocalPrognosisProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)Ras ProteinsReal-Time Polymerase Chain ReactionReceptor Protein-Tyrosine KinasesSoft Tissue NeoplasmsYoung AdultConceptsALK gene rearrangementMetastatic lung adenocarcinomaEGFR mutationsKRAS mutationsMetastatic tumorsEpidermal growth factor receptorLung adenocarcinomaCytological specimensGene rearrangementsMolecular testsMolecular alterationsKirsten rat sarcoma viral oncogene homolog (KRAS) mutationsALK gene rearrangement analysisAnaplastic lymphoma kinase (ALK) gene rearrangementEGFR T790M mutationRat sarcoma viral oncogene homolog mutationsCases of lungT790M mutationImportant therapeutic implicationsFine needle aspiratesGene rearrangement analysisCell block materialGrowth factor receptorRecurrent lungRecurrent adenocarcinoma