Humpath.com - Human pathology

Most recent articles

• melanin-pigmented tumors

  10 September

  Types
  melanocytic tumors
  melanin-pigmented PEcoma / melanin-pigmented perivascular epithelioid tumor
  melanin-pigmented renal cell tumor / TFEB-associated tumors
  See also
  melanin
  pigmented tumors
  pigmented tumoral cells

• interface reaction pattern

  3 September

  Paywall references
  https://pubmed.ncbi.nlm.nih.gov/31278974/
  https://www.sciencedirect.com/science/article/abs/pii/S0046817719301121

• acute eczematous dermatitis

  3 September

  PO
  Synopsis
  spongiosis
  perivascular lymphocytic infiltrate
  superficial dermal edema
  Differential diagnosis
  drug reaction: prominent eosinophilic infiltrate

• calcifying pseudoneoplasm of the neural axis

  3 September

  CAPNON
  Synopsis
  extra-axial calcific pseudotumours
  etiology not understood
  reactive, metaplastic and neoplastic processes have been suggested.
  Images
  https://twitter.com/ashokparameswar/status/1433691658571300866

• follicular dendritic cell sarcoma

  3 September

  FDCS PO

• follicular dendritic cell tumor

  3 September

  See : follicular dendritic cell sarcoma (FDCS)

• antisynthetase syndrome

  3 September

  WKP
  Definition : Anti-synthetase syndrome is an autoimmune disease associated with interstitial lung disease , dermatomyositis , and polymyositis.
  Images
  https://twitter.com/leticiakawano/status/1433687136184774656
  See also
  autoimmune diseases

• Malassezia furfur

  3 September

  PO
  Definition : Infection by Malassezia furfur, often of upper trunk : tinea versicolor.
  Synopsis
  Variably pigmented macules of all sizes,
  orthokeratotic hyperkeratosis
  yeast spores and pseudohyphae within stratum corneum
  Short hyphae and spores (spaghetti and meatballs) with GMS or PAS stains
  Differential diagnosis
  presence of fungi does not rule out coexisting inflammatory and neoplastic (...)

• tinea versicolor

  3 September

  PO
  Definition : Infection by Malassezia furfur, often of upper trunk.
  Synopsis
  Variably pigmented macules of all sizes,
  orthokeratotic hyperkeratosis
  yeast spores and pseudohyphae within stratum corneum
  Short hyphae and spores (spaghetti and meatballs) with GMS or PAS stains
  Differential diagnosis
  presence of fungi does not rule out coexisting inflammatory and neoplastic (...)

• pleural thickening

  3 September

  Images
  Macroscopy : pleural thickening in mesothelioma https://twitter.com/atman_ci/status/1433668778101989376
  Etiology
  pachypleuritis
  pleural mesothelioma
  See also
  pleural anomalies

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