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
2021
Checkpoint 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 ResearchMeSH KeywordsAdultAgedAged, 80 and overColitisFemaleHumansImmune Checkpoint InhibitorsInflammatory Bowel DiseasesMaleMiddle AgedConceptsInflammatory 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
Morphological 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
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 ResearchMeSH KeywordsAcinar CellsAdolescentAgedAged, 80 and overFemaleHumansMaleMiddle AgedPancreatic CystRetrospective StudiesConceptsPancreatic 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