UROTHELIAL CARCINOMA

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How should HOCT be recognized? 1. Subcategory of oncocytoma 73% 2. Subcategory of chromophobe 3. As a distinctive entity 4. Should not be recognized 20% 5. I’m not sure 6% 0% 1% 1 2 3 4 5
Are the hybrid tumors associated with Birt Hogg Dube syndrome distinct? 1. No, hybrid tumors associated with Birt Hogg Dube syndrome are not distinct. 2. Yes, all hybrid tumors associated with BHD syndrome have distinct morphology. 3. Yes, but one should rule out the possibility of “sporadic“ hybrid tumor or tumor associated with oncocytosis. 4. There is not enough experience to resolve this problem at the moment 17% 19% 29% 35% 1 2 3 4
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Basel Seminars in Pathology Postgra
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UPDATE ON PATHOLOGY STANDARDS FOR B
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Molecular Pathways for Bladder Canc
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HISTOLOGIC GRADE UROTHELIAL NEOPLAS
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What’s New in the 2012 Consensus
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Reporting of Bladder Cancer • Gui
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• Seen with instrumentation with
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Squamous Metaplasia • Should be r
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GRADING OF UROTHELIAL LESIONS • F
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NORMAL
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Urothelial Dysplasia • Overall fe
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Urothelial Dysplasia • The diagno
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ATYPIA OF UNKNOWN SIGNIFICANCE (WHO
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Grading of Urothelial Carcinoma •
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Papilloma
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PUNLMP
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LOW GRADE
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HIGHGRADE
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P A P I L O M A L M P L O W G R A D
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Courtesy R. Montironi, Italy Exophy
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Inverted High Grade without invasio
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Inverted Papilloma
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Inverted PUNLMP
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Inverted LG
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Inverted HG
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Inverted HG, Non Inv
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WHO (2004) /ISUP : Prognostic Signi
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Contributions of WHO (2004) /ISUP
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Handling grade heterogeneity in bla
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Grading Papillary Urothelial Neopla
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Papillary Hyperplasia with Cytologi
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Dysplasia with early papillary feat
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Grading Invasive Cancer • Practic
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• 2 types of muscle - awareness i
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Muscularis Mucosae Muscle • Hyper
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M. mucosae muscle patterns Typical
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M. mucosae muscle pattern Hypertrop
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Muscularis Propria • Several term
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Muscle Involved by UCa, Indetermina
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Assessment of pT2 vs. pT3 - cystect
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Microinvasive Urothelial Carcinoma
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Substratification or Substaging of
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Extensive invasion
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Retraction a mimic of vascular-lymp
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Vascular Lymphatic Invasion (LVI)
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2013 International Society of Urolo
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Lymph node involvement: • Approx.
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THE BEST BLADDER CANCER PATHOLOGY S
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PSEUDONEOPLASTIC MIMICS OF BLADDER
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EMPHYSEMATOUS & BULLOUS CYSTITIS
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AMYLOIDOSIS
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MALAKOPLAKIA
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NORMAL PARAGANGLIONIC TISSUE
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CIS
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REACTIVE ATYPIA History of stones,
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CIS REACTIVE ATYPIA
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RADIATION ATYPIA
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INTRAVESICAL THERAPY
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Polyoma Virus Infection • Usually
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Papillary tumor Micropapillary U Ca
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Low magnification distinction Broad
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Cystoscopic & microscopic mimic Pap
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Papillary Polypoid cystitis
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ALL THAT IS PAPILLARY BLADDER IS NO
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Bladder Biopsy Interpretation, 2nd
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TIGHTLY CLUSTERED UROTHELIUM
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TIGHTLY CLUSTERED UROTHELIUM
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U Ca. with small tubules Nephrogeni
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NEPHROGENIC ADENOMA - THE BIG MIMIC
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NEPHROGENIC ADENOMA
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NEPHROGENIC ADENOMA
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NEPHROGENIC ADENOMA Clues to benign
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FLORID REACTIVE PROLIFERATIONS norm
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POST-RADIATION PSEUDOCARCINOMATOUS
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LORID CYSTTTIS GLANDULARIS ITH MUCI
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MULLERIANOSIS • Endometriosis, en
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PSEUDOSARCOMATOUS MYOFIBROBLASTIC P
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Gross PMP • Exophyticpolypoid mas
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ROLE OF IMMUNOHISTOCHEMISTRY IN THE
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PROVING UROTHELIAL DIFFERENTIATION
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CA in the bladder, h.o of lung canc
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Paraganglioma Epith. LMS PEComa Mel
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p63
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Plasmacytoid U Ca
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• Markers of urothelium and uroth
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S100P S100P GATA3 GATA3 A-F: S100P,
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GATA 3 & S100 P: Diagnostic utility
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PARAGANGLIOMA
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Identification of Succinate Dehydro
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CIS REACTIVE
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NORMAL
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CK-20
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REACTIVE UROTHELIUM
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CK-20
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Reactive CD44
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CA-INSITU
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CK-20
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CIS CK20
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CK20 (+) CD44(-)
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p53
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CD44
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Reactive CIS
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Radiation-Reactive Radiation CIS
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AUA GUIDELINE 2007 UPDATE: • Stan
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Typical pattern: • Arranged in gr
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Muscularis mucosae or muscularis pr
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Am J Surg Pathol. 2009 ;33:91-8 SMO
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Smoothelin hyperplastic
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Smoothelin
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SMA - M. Mucosae
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Smoothelin
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CAUTERY: MINIMAL EFFECT ON IHC
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M. Mucosae vs. M. Propria in TURBT
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M. Mucosae vs. M. Propria in TURBT
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Smoothelin: Negative - Suggestive o
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Courtesy: Dr John Eble
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METASTASIS TO THE BLADDER Prostate
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?Urothelial Carcinoma vs. ?Prostati
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Concurrent PCa & UCa
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PCa PCa NKX3.1 P501S PSMA
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100% 100% 90% 88% 88% 88% 80% 70% 6
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Clear cell Ca Neph. adenoma
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U Ca. with small tubules Nephrogeni
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Nephrogenic adenoma Clear cell aden
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CCCa Pax 2 S100A1 Ki67
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P Ca A Pax 2 S100A1 Ki67
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PMP / Pseudotumors
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SMA
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Sarcomatoid urothelial carcinoma
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Leiomyosarcoma
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Spindle cell lesions Benign (PMP) v
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SARC CA p63 CK 5/6 or HMCK p63
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Session plan Renal Pathology for th
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Tubules - Normal
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Interstitial inflammation - tubuloi
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Tubulointerstitial nephritis Classi
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CKD, previous tuberculosis, HCV pos
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AKI, ANCA positive, cortex - TIN, g
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Male 59 years. Acute rise in creati
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35 patients with IgG4-TIN: 27 (77%)
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Male 70 years AKI Diagnosis?
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Hantavirus nephropathy
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Male, 57 years. Acute renal failure
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Ascending infection (pyelonephritis
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Tubulointerstitial infiltrates in t
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Tubulointerstitial infiltrates in t
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Things in tubules Casts, crystals,
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Acute phosphate nephropathy First c
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Diagnosis?
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Acute tubular injury Ischaemia, dru
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Light chain tubulopathy
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Acute tubular injury in the post mo
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Acute tubular injury in the post mo
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Drug-associated tubular injury Drug
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Gentamicin toxicity Diagnosis?
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Drug-associated tubular injury Mech
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Glomerular lesions Ian Roberts Oxfo
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Tumour nephrectomy specimens Things
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Glomeruli- Normal
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Nodular glomerulosclerosis Diabetic
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Diabetic nephropathy: thickened bas
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Diabetic nephropathy: Diffuse mesan
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Diabetic nephropathy: Insudative le
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Amyloidosis Congo red
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Amyloidosis
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Amyloidosis
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Immunotactoid Fibrillary GN 0.06% o
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Light chain deposition disease
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Focal segmental glomerulosclerosis
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Glomerular lesions: proliferation M
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Glomerular lesions: proliferation E
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The diagnosis of IgA nephropathy is
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The histology of IgA nephropathy is
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Mesangiocapillary GN = Membranoprol
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Mesangiocapillary GN, type I C3
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C3 glomerulopathy MPGN and C3 glome
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Dense deposit disease
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Glomerular lesions: necrosis Ruptur
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Renal vasculitis May be isolated re
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Renal vasculitis European vasculiti
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Anti-GBM disease Autoantibodies to
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Remember: multiple pathologies are
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Male 46 years. Suffered from diabet
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Diagnoses: Diabetic nephropathy Oxa
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Interactive Kidney Quiz Ian S. Robe
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Test vote How did you learn about t
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Set 1
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PathoPic B
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PathoPic D
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What is your main diagnosis? 1. chr
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What is your main diagnosis? 1. amy
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What is your main diagnosis? 1. no
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A PathoPic Dg: arteriolosclerosis,
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Dg: diabetic kidney C PathoPic
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Dg: malignant nephrosclerosis E
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RCPath “Minimum” dataset for tu
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Patterns of scarring Granular subca
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Patterns of scarring Granular subca
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Deep pitted cortical scars: Pattern
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Patterns of scarring Deep pitted co
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Patterns of scarring Segmental tran
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Malignant hypertension A cause of a
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Malignant vs benign vascular diseas
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PathoPic G
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PathoPic I
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What is your main diagnosis? 1. gou
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What is your main diagnosis? 1. met
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What is your main diagnosis? 1. ren
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Solutions (M.J. Mihatsch)
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Descripition Involvement of cortex
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Description Whitish discoloration a
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Description Massive enlargement of
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Description Brownish discoloration
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Papillary necrosis Pg: i.e. vascula
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Papillary necrosis Pg: i.e. vascula
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Types of papillary necrosis: Extend
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Black papillary necrosis Think of p
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Phenacetin kidney Compete necrosis
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Phenacetin kidney Note massive base
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Phenacetin kidney Note: Massive lip
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Typical examples of papillary necro
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White papillary necrosis Think of v
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Red papillary necrosis Think of vas
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I hope you will never overlook papi
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Challenges for Pathologists Renal M
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Do the morphotypes of RCC have prog
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Potential of Needle Biopsy • Diag
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Novel renal tumor types with clear
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Am J Surg Path 28, 2004 41 Carcinom
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Should Acquired Cystic Disease- RCC
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Clear cell papillary RCC has: 1. PO
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Which name should be used for 1. Cl
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1. Yes 2. No Should Thyroid-Like Fo
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If focal (
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Denote AMLs with epithelioid morpho
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Differential Diagnosis of Cystic Re
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smaller cysts with phyllodes glands
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Are Cystic Nephroma and Mixed Epith
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If you consider CN and MEST variati
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Should Tubulocystic-RCC be recogniz
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Prognosis • Type • Stage • Gr
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Papillary renal cell carcinoma Type
Page 608 and 609: Differential Diagnosis: metanephric
Page 610 and 611: The distinction between type 1 vers
Page 612 and 613: Should Oncocytic Papillary-RCC be r
Page 614: Leiomyomas of the Skin
Page 618 and 619: Fuhrman Grading in RCC Hong SK, BJU
Page 620 and 621: How should we grade clear cell RCC?
Page 622: How should we grade chromophobe RCC
Page 625 and 626: For Sarcomatoid Tumors Do You Repor
Page 627 and 628: Do You Consider a Tumor Area Sarcom
Page 629 and 630: Tumor Staging
Page 631 and 632: When invasion of the renal sinus is
Page 633 and 634: Should the presence or absence of t
Page 635 and 636: Should any assessment of amount (pe
Page 637 and 638: ISUP Consensus Conference Vancouver
Page 639 and 640: Molecular Pathways and Targeted The
Page 641: Chemokine receptor CXCR4 downregula
Page 644 and 645: Agents such as sunitinib act throug
Page 646 and 647: VHL-Mutation ↔ Gene expression Ba
Page 648 and 649: Driver and Passenger VHL Mutations
Page 650: Differential Diagnosis of Renal Cel
Page 653: Renal Tumors with Eosinophilic Cyto
Page 658: Birt Hogg Dubé syndrome
Page 663 and 664: For distinguishing clear cell RCC f
Page 665 and 666: Clear Cell Renal Cancer VHL Deletio
Page 667 and 668: Early on in VHL disease, the vast m
Page 669 and 670: Distinct tumor suppressor mechanism
Page 671 and 672: A Ksp-Cre - pos - pos - pos Vhlh fl
Page 673 and 674: pVHL localizes to primary cilia in
Page 675 and 676: a c b d Montani et al.: Am J Surg P
Page 677 and 678: Multilocular cystic renal cell carc
Page 679 and 680: What terminology for a multicystic
Page 681 and 682: In the setting of acquired cystic d
Page 683 and 684: „Translocation“ Type of Renal C
Page 685 and 686: „Translocation“ Type of Renal C
Page 687: t(X;1)
Page 690 and 691: Should t(6;11) RCC be Recognized as
Page 693 and 694: When a translocation carcinoma is s
Page 696: Leiomyomatous Renal Cell Carcinoma
Page 699: Edmunds W: Trans.Path.Soc.London 43
Page 702 and 703: Are Cystic Nephroma and Mixed Epith
Page 704 and 705: Renal Tumors with Papillary Archite
Page 706 and 707: In the absence of classical histolo
Page 708 and 709: Clin Cancer Res 2009;15:3297-3304 -
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A, Western blot analysis of HK-2 ce
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Tumors with Spindle Cell Morphology
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Which marker do you use most freque
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Primary Renal Synovial Sarcoma Immu
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SYT-SSX Fusion from translocation t
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Renal carcinoid from a horseshoe ki
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DD „Small round blue“ cell tumo
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Xu X. et al.L Cell 148, 886-895, 20
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Polybromo-1 (BAF180) in ccRCC ~40%
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wt versus VHL-/- cells VHL-loss der
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VHL and a Serum Screening Test for
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