2024
Histologic Features of Mycobacterial Spindle Cell Pseudotumors
Szczepanski J, Lieberman J, Lamps L, Gonzalez R, Xue Y, Zhang X, Yilmaz O, Hart J, Krausz T, Mantilla J, McHugh J, Westerhoff M. Histologic Features of Mycobacterial Spindle Cell Pseudotumors. The American Journal Of Surgical Pathology 2024, 48: 890-900. PMID: 38726848, DOI: 10.1097/pas.0000000000002234.Peer-Reviewed Original ResearchConceptsMycobacterial spindle cell pseudotumorSpindle cell pseudotumorImmunocompromised patientsFoamy histiocytesLymph nodesNeutrophilic inflammationNeutrophilic microabscessesEvaluated lymph nodesComposition of inflammatory infiltratesSpindle cell neoplasmSecondary to infectionNon-tuberculous mycobacteriaArchitectural growth patternAcid-fast stainingMultinucleated giant cellsPeripheral granulomaSurgical therapyCell neoplasmsStromal changesHistological factorsSpindle cellsLymphocytic inflammationMicrobiological findingsClinical historyInflammatory infiltrate
2023
Colorectal Carcinoma With Sarcomatoid Components
Golconda U, McHugh K, Allende D, Collins K, Henn P, Lacambra M, Bejarano P, Groisman G, Loughrey M, Monappa V, Zhang X, Hornick J, Gonzalez R. Colorectal Carcinoma With Sarcomatoid Components. The American Journal Of Surgical Pathology 2023, 48: 465-474. PMID: 38155543, DOI: 10.1097/pas.0000000000002172.Peer-Reviewed Original ResearchConceptsSarcomatoid componentColorectal carcinomaUndifferentiated carcinomaTumor-infiltrating lymphocytesNodal metastasisAbdominal painDistant metastasisRare subtypeSMARCA4 lossTumor buddingHeterologous elementsRepair protein expressionRectosigmoid regionSpindle cellsGastrointestinal bleedingKeratin-positivePoor prognosisFollow-upCarcinomaMismatch repair protein expressionMolecular testingAdvanced stageTumorLoss of mismatch repair protein expressionProtein expressionClinicopathologic characterization of hepatocellular adenomas in men: a multicenter experience
González I, Torbenson M, Sharifai N, Byrnes K, Chatterjee D, Kakar S, Yeh M, Wu T, Zhang X, Jain D. Clinicopathologic characterization of hepatocellular adenomas in men: a multicenter experience. Human Pathology 2023, 138: 24-33. PMID: 37245629, DOI: 10.1016/j.humpath.2023.05.010.Peer-Reviewed Original ResearchConceptsHepatocellular adenomaHepatocellular carcinomaMalignant transformationMulticenter experienceMean ageWorld Health Organization classificationConcomitant hepatocellular carcinomaAndrogen receptor expressionBenign liver neoplasmUnclassified hepatocellular adenomaUncertain malignant potentialInflammatory hepatocellular adenomaΒ-catenin-activated hepatocellular adenomaClinicopathologic characterizationEntire cohortHCA casesCommon subtypeMalignant potentialOrganization classificationReproductive ageAllred score systemResection casesReceptor expressionHepatocellular neoplasmsLiver neoplasms
2022
Increased Expression of LEF1 and β-Catenin in Invasive Micropapillary Carcinoma of the Breast is Associated With Lymphovascular Invasion and Lymph Node Metastasis
Dolezal D, Zhang X, Harigopal M. Increased Expression of LEF1 and β-Catenin in Invasive Micropapillary Carcinoma of the Breast is Associated With Lymphovascular Invasion and Lymph Node Metastasis. Applied Immunohistochemistry & Molecular Morphology 2022, 30: 557-565. PMID: 35960138, DOI: 10.1097/pai.0000000000001052.Peer-Reviewed Original ResearchConceptsInvasive micropapillary breast carcinomaLymph node metastasisLymphoid enhancer-binding factor 1Lymphovascular invasionNode metastasisNodal metastasisPrimary tumorΒ-cateninBreast tumorsRare breast cancer subtypeSmall tumor cell clustersLEF1 expressionMicropapillary breast carcinomaAggressive breast tumorsBasal-like carcinomasInvasive micropapillary carcinomaΒ-catenin expression levelsBreast cancer subtypesΒ-catenin expressionTumor cell clustersEnhancer-binding factor 1Disease relapseMicropapillary carcinomaBreast carcinomaHigh incidenceHepatocellular adenoma: Where are we now?
Wang X, Zhang X. Hepatocellular adenoma: Where are we now? World Journal Of Gastroenterology 2022, 28: 1384-1393. PMID: 35582672, PMCID: PMC9048476, DOI: 10.3748/wjg.v28.i14.1384.Peer-Reviewed Original ResearchConceptsHepatocellular adenomaOral contraceptive useUnderlying molecular signaturesClinical managementHepatocellular neoplasmsContraceptive useHigh riskMalignant transformationYoung womenMolecular featuresMolecular signaturesSubtypesMolecular studiesClassification systemComplicationsHemorrhageAdenomasNeoplasms
2021
Pathogenic BRCA2 germline variants in combined hepatocellular‐cholangiocarcinoma
Li H, Zhang X, Finberg KE, Walther Z, Jain D, Gibson J. Pathogenic BRCA2 germline variants in combined hepatocellular‐cholangiocarcinoma. Pathology International 2021, 72: 138-140. PMID: 34808016, DOI: 10.1111/pin.13188.Peer-Reviewed Original ResearchCalcifying nested stromal–epithelial tumor: a clinicopathologic and molecular genetic study of eight cases highlighting metastatic potential and recurrent CTNNB1 and TERT promoter alterations
Papke Jr. D, Dong F, Zhang X, Kozielski R, Basturk O, Fletcher CDM, Zhao L. Calcifying nested stromal–epithelial tumor: a clinicopathologic and molecular genetic study of eight cases highlighting metastatic potential and recurrent CTNNB1 and TERT promoter alterations. Modern Pathology 2021, 34: 1696-1703. PMID: 33994539, DOI: 10.1038/s41379-021-00822-w.Peer-Reviewed Original ResearchConceptsStromal-epithelial tumorTERT promoter mutationsMetastatic diseaseCTNNB1 alterationsRare hepatic tumorRecurrent liver tumorsTERT promoter alterationsMedian tumor sizePromoter mutationsMolecular genetic featuresNuclear β-catenin expressionΒ-catenin expressionNeoadjuvant chemotherapyAbdominal metastasesLatter patientsLymphovascular invasionMedian ageLung metastasesTumor sizeHepatic tumorsNeuroendocrine markersEosinophilic cytoplasmLiver tumorsFibrous stromaTumor fibrosisCan primary hepatocellular carcinoma histomorphology predict extrahepatic metastasis?
Kumar D, Hafez O, Jain D, Zhang X. Can primary hepatocellular carcinoma histomorphology predict extrahepatic metastasis? Human Pathology 2021, 113: 39-46. PMID: 33905775, DOI: 10.1016/j.humpath.2021.04.008.Peer-Reviewed Original ResearchConceptsMetastatic hepatocellular carcinomaHepatocellular carcinomaHistologic patternHistomorphologic featuresPrimary tumorMetastatic tumorsMacrotrabecular-massive hepatocellular carcinomaCommon histologic patternPathogenesis of metastasisSignificant intratumoral heterogeneityExtrahepatic metastasesLymph nodesMicrovascular invasionAdrenal glandCommon subtypeNoncirrhotic liverCirrhotic liverCommon siteMetastatic tissuesLarge cohortAbdominal cavityHCC subtypesPathology archivesMetastasisHCC metastasisA Novel Treatment for Metastatic Serous Cystadenocarcinoma Using a Microwave Ablation: Case Report and Review of the Literature.
Murtha TD, Cornman-Homonoff J, Ayyagari R, Zhang X, Salem RR. A Novel Treatment for Metastatic Serous Cystadenocarcinoma Using a Microwave Ablation: Case Report and Review of the Literature. Pancreas 2021, 50: 434-440. PMID: 33835976, DOI: 10.1097/mpa.0000000000001785.Peer-Reviewed Case Reports and Technical NotesConceptsSerous cystadenocarcinomaSerous cystadenomaMicrowave ablationRecurrence 3 yearsSolitary hepatic metastasisEffective treatment optionPercutaneous microwave ablationPancreatic cystic neoplasmsRare malignant variantDistal pancreatectomyHepatic metastasesPatient factorsPercutaneous ablationCystic neoplasmsTreatment optionsCase reportMetastatic spreadMalignant variantAbdominal visceraLocal invasionNovel treatmentsCystadenomaHepatic implantsAdjacent structuresCystadenocarcinomaCheckpoint Inhibitor Colitis Shows Drug-Specific Differences in Immune Cell Reaction That Overlap With Inflammatory Bowel Disease and Predict Response to Colitis Therapy
Lo YC, Price C, Blenman K, Patil P, Zhang X, Robert ME. Checkpoint Inhibitor Colitis Shows Drug-Specific Differences in Immune Cell Reaction That Overlap With Inflammatory Bowel Disease and Predict Response to Colitis Therapy. American Journal Of Clinical Pathology 2021, 156: 214-228. PMID: 33555016, DOI: 10.1093/ajcp/aqaa217.Peer-Reviewed Original ResearchConceptsInflammatory bowel diseaseCD8/FOXP3 ratioBiopsy specimensCPI patientsPD-1CD68 scoreFOXP3 ratioBowel diseasePD-L1Antibody-treated patientsCheckpoint inhibitor colitisPD-L1 groupInitial biopsy specimensPD-L1 expressionImmune cell reactionsColonic biopsy specimensDrug-specific differencesIBD groupCheckpoint inhibitorsChronicity scoreActivity scoreImmune phenotypeTherapeutic responseColitisShared pathophysiology
2020
Calcifying fibrous tumor of the gastrointestinal tract: A clinicopathologic review and update
Turbiville D, Zhang X. Calcifying fibrous tumor of the gastrointestinal tract: A clinicopathologic review and update. World Journal Of Gastroenterology 2020, 26: 5597-5605. PMID: 33071524, PMCID: PMC7545394, DOI: 10.3748/wjg.v26.i37.5597.Peer-Reviewed Original ResearchConceptsFibrous tumorGastrointestinal tractVascular type Castleman's diseaseRare mesenchymal lesionsType Castleman's diseaseInflammatory myofibroblastic tumorAngiomatoid nodular transformationGastrointestinal stromal tumorsSpindle cell proliferationSolitary fibrous tumorBenign mesenchymal neoplasmNodular fibrous pseudotumorLymphoplasmacytic inflammationLocal resectionMyofibroblastic tumorPlexiform fibromyxomaClinicopathologic reviewNodular transformationStromal tumorsCastleman's diseaseMesenchymal lesionsMesenchymal neoplasmsDifferential diagnosisLower riskLarge intestineFibronodular hepatocellular carcinoma—a new variant of liver cancer: clinical, pathological and radiological correlation
Tefera J, Revzin M, Chapiro J, Savic L, Mulligan D, Batra R, Taddei T, Jain D, Zhang X. Fibronodular hepatocellular carcinoma—a new variant of liver cancer: clinical, pathological and radiological correlation. Journal Of Clinical Pathology 2020, 74: 31-35. PMID: 32430483, PMCID: PMC7674234, DOI: 10.1136/jclinpath-2020-206574.Peer-Reviewed Original ResearchConceptsAdvanced Barcelona Clinic Liver Cancer stageBarcelona Clinic Liver Cancer stageScirrhous HCCMultiple rounded nodulesNon-peripheral washoutLiver Cancer stageRadiological featuresClinical featuresRadiological correlationCarcinoma variantsCancer stageHCC casesHepatocellular carcinomaLiver cancerFibrotic liverConventional HCCHCCLower ratesHigh rateRounded nodulesProgressionDistinct patternsCarcinomaSpecific variantsLesionsMorphological spectrum of immune check‐point inhibitor therapy‐associated gastritis
Johncilla M, Grover S, Zhang X, Jain D, Srivastava A. Morphological spectrum of immune check‐point inhibitor therapy‐associated gastritis. Histopathology 2020, 76: 531-539. PMID: 31692018, DOI: 10.1111/his.14029.Peer-Reviewed Original ResearchConceptsImmune check-point inhibitor therapyCheck-point inhibitor therapyImmune-related adverse eventsImmune check point inhibitorsMorphological spectrumIntra-epithelial lymphocytosisCheck point inhibitorsChronic active gastritisInflammatory bowel diseaseMedical chart reviewCytotoxic T cellsDrug-induced gastritisPredominant histological patternDistribution of injuriesVariety of tumorsMechanism of actionSteroid therapyGastrointestinal injuryActive gastritisAdverse eventsChart reviewClinical suspicionMedication withdrawalBowel diseaseInhibitor therapy
2019
Adverse Histologic Features in Colorectal Nonpedunculated Malignant Polyps With Nodal Metastasis
Patel N, Vyas M, Celli R, Jain D, Zhang X. Adverse Histologic Features in Colorectal Nonpedunculated Malignant Polyps With Nodal Metastasis. The American Journal Of Surgical Pathology 2019, 44: 241-246. PMID: 31498179, DOI: 10.1097/pas.0000000000001369.Peer-Reviewed Original ResearchConceptsHigh-grade tumor buddingAdverse histologic featuresMalignant polypsNodal metastasisTumor buddingHistologic featuresLymphovascular invasionNode metastasisLymph node metastatic potentialMargin statusSubsequent resectionColectomy specimenColectomy proceduresDifferentiated clustersTumor differentiationOdds ratioRisk featuresMetastasisMetastatic potentialPiecemeal polypectomyPolypsRiskInvasionColectomyResectionMacrotrabecular Hepatocellular Carcinoma
Jeon Y, Benedict M, Taddei T, Jain D, Zhang X. Macrotrabecular Hepatocellular Carcinoma. The American Journal Of Surgical Pathology 2019, 43: 943-948. PMID: 31135484, DOI: 10.1097/pas.0000000000001289.Peer-Reviewed Original ResearchMeSH KeywordsAgedAlpha-FetoproteinsCarcinoma, HepatocellularDisease ProgressionFemaleHepatectomyHepatitis BHepatitis CHumansLiver CirrhosisLiver NeoplasmsLiver TransplantationMaleMiddle AgedNeoplasm GradingNeoplasm Recurrence, LocalNeoplasm StagingProgression-Free SurvivalRetrospective StudiesRisk FactorsTime FactorsTumor BurdenConceptsHepatocellular carcinomaHCC subtypesHigh alpha-fetoprotein levelsWorse recurrence-free survivalDistinct HCC subtypeHepatitis C infectionRecurrence-free survivalAlpha-fetoprotein levelsAnaplastic tumor cellsHigh histologic gradePoor overall survivalConventional hepatocellular carcinomaHigh recurrence rateHigher AJCC stageDetailed pathologic evaluationMacrotrabecular patternC infectionPrimary resectionHepatitis BOverall survivalPathologic evaluationAJCC stageClinicopathologic featuresHistologic subtypeRecurrence rateClinical utility of genomic analysis in adults with idiopathic liver disease
Hakim A, Zhang X, DeLisle A, Oral EA, Dykas D, Drzewiecki K, Assis DN, Silveira M, Batisti J, Jain D, Bale A, Mistry PK, Vilarinho S. Clinical utility of genomic analysis in adults with idiopathic liver disease. Journal Of Hepatology 2019, 70: 1214-1221. PMID: 31000363, PMCID: PMC6526061, DOI: 10.1016/j.jhep.2019.01.036.Peer-Reviewed Original ResearchConceptsIdiopathic liver diseaseUnexplained liver diseaseManagement of adultsWhole-exome sequencingLiver diseaseAdult patientsUnknown etiologyHeterozygous variantsUse of WESAmelioration of dyslipidemiaDaily insulin requirementLeptin replacement therapyUtility of WESChronic liver diseaseNon-alcoholic steatohepatitisAcademic health care centerHealth care centersHomozygous pathogenic variantUnrelated adult patientsNon-oncological diseasesDisease preventive measuresInsulin requirementsLean patientsDevastating complicationLiver aminotransferases
2017
Post-obstructive cyst formation in pancreas and cystic acinar transformation: Are they same?
Zhang X, Zhu H, Yang X, Adsay VN, Jain D. Post-obstructive cyst formation in pancreas and cystic acinar transformation: Are they same? Pathology - Research And Practice 2017, 213: 997-1001. PMID: 28599853, DOI: 10.1016/j.prp.2017.03.013.Peer-Reviewed Original ResearchConceptsPancreatic ductal adenocarcinomaAcinar cell differentiationCystic dilatationCystic lesionsNon-neoplastic cystic lesionsCyst formationEtiology of obstructionCareful gross examinationBenign pancreatic cystic lesionsPancreatic ductal systemPancreatic neuroendocrine tumorsPancreatic cystic lesionsCell differentiationAcinar cell cystadenomaObstructive lesionsAcinar cell neoplasmsExact pathogenesisHistologic findingsSized cystsCystic dilationNeuroendocrine tumorsPancreatic ductDuctal adenocarcinomaCell neoplasmsMetaplastic phenomenon
2016
Intestinal metaplasia of appendiceal endometriosis is not uncommon and may mimic appendiceal mucinous neoplasm
Vyas M, Wong S, Zhang X. Intestinal metaplasia of appendiceal endometriosis is not uncommon and may mimic appendiceal mucinous neoplasm. Pathology - Research And Practice 2016, 213: 39-44. PMID: 27913053, DOI: 10.1016/j.prp.2016.10.011.Peer-Reviewed Original ResearchConceptsAppendiceal mucinous neoplasmIntestinal metaplasiaMucinous neoplasmsAppendiceal endometriosisLow-grade appendiceal mucinous neoplasmCause of appendicitisRetention mucocelesLuminal obliterationPathology databaseClinical historyIncidental findingEndometriosisRetrospective searchMetaplasiaEndometriosis casesNeoplasmsYoung womenUncommon phenomenonMass formationAppendicitisIntussusceptionMucoceleMucosaCasesMisdiagnosis