Kidneys

• Liesegang rings
  18 April 2017

  Liesegang ring
  Images
  Liesegang rings in a ruptured renal cyst: lamellar structures due to precipitation of saturated solutions. It can be confused with parasites. https://twitter.com/AMSanguino/status/854053562309120001

• glomerular amyloidosis
  5 April 2017

  Images
  GBM reaction to presence of amyloid on silver stain https://twitter.com/ErikaBracamo316/status/849008064158158848
  See also
  glomerular anomalies
  amyloidosis

• renal cell carcinoma with areas mimicking renal angiomyoadenomatous tumor/clear cell papillary renal cell carcinoma
  27 March 2017

  Paywall references
  Renal cell carcinoma with areas mimicking renal angiomyoadenomatous tumor/clear cell papillary renal cell carcinoma.
  Petersson F, Grossmann P, Hora M, Sperga M, Montiel DP, Martinek P, Gutierrez ME, Bulimbasic S, Michal M, Branzovsky J, Hes O.
  Hum Pathol. 2013 Jul;44(7):1412-20. doi:10.1016/j.humpath.2012.11.019.
  PMID: #23434146#

• biphasic squamoid papillary renal cell carcinoma
  27 March 2017

  Biphasic Squamoid Alveolar Renal Cell Carcinoma; BSARCC ; biphasic squamoid alveolar renal cell carcinoma ; Biphasic papillary RCC
  Definition : Biphasic papillary RCC is a rare variant of papillary RCC, and is often multifocal.
  Images
  ’Biphasic Squamoid Alveolar’ RCC
  https://twitter.com/DrAndrewRyan/status/846250211404001280
  Biphasic papillary squamoid RCC
  https://twitter.com/AkgulMd/status/1495620685082906624
  Multiple chromosomal aberrations were identified in all analyzable (...)

• sarcomatoid renal cell carcinoma
  8 March 2017

  renal cell carcinoma with extensive sarcomatoid component. ESC RCC
  Patients with RCC with ESC have a dismal clinical course, and the majority of patients have rapid disease progression, especially in response to immunotherapy.
  Paywall references
  Prognostic factors of metastatic renal cell carcinoma with extensive sarcomatoid component.
  Park I, Cho YM, Lee JL, Ahn JH, Lee DH, Song C, Hong JH, Kim CS, Ahn H.
  J Cancer Res Clin Oncol. 2013 May;139(5):817-27. doi:10.1007/s00432-013-1386-4. (...)

• ISUP grading system for renal cell carcinoma
  1 March 2017

  ISUP grading system for RCC; Fuhrman grading system
  Images
  ISUP grading system for RCC https://twitter.com/GeronimoJrLapac/status/857135747459145728

• TCEB1-mutated renal cell carcinoma
  28 February 2017, by admin

  TCEB1-associated renal cell carcinoma
  Pathology
  TCEB1-mutated renal cell carcinoma TCEB1 mutations in renal cell carcinoma (RCC)
  See also
  renal cell carcinomas (RCCs )
  Open references
  TCEB1-mutated renal cell carcinoma: a distinct genomic and morphological subtype. Hakimi AA, Tickoo SK, Jacobsen A, Sarungbam J, Sfakianos JP, Sato Y, Morikawa T, Kume H, Fukayama M, Homma Y, Chen YB, Sankin AI, Mano R, Coleman JA, Russo P, Ogawa S, Sander C, Hsieh JJ, Reuter VE. Mod Pathol. 2015 (...)

• pyonephrosis
  18 January 2017

  Images
  https://twitter.com/solcosao/status/673677454116970496
  See also
  renal anomalies renal urinary anomalies

• papillary renal cell carcinomas
  28 December 2016

  renal papillary tumors
  Types
  papillary basophilic renal cell carcinoma (type 1)
  papillary oncocytic renal cell carcinoma (type 2)
  papillary clear cell renal cell carcinoma
  TFE3-associated renal cell carcinoma

• TFEB -amplified renal cell carcinoma
  14 December 2016

  Definition : Some RCCs demonstrate TFEB gene amplification (most without TFEB rearrangement, rare cases with concurrent TFEB rearrangement) and demonstrate downstream consequences of TFEB overexpression.
  Like the unamplified t(6;11) RCC, all TFEB-amplified RCC were associated with aberrant melanocytic marker expression.
  However, several differences between TFEB-amplified RCC and the usual unamplified t(6;11) RCC are evident.
  First, TFEB-amplified RCC occurred in older patients (median (...)

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