Skin

• loss of hair follicles
  25 January 2019

  Examples
  morphea
  See also
  anomalies of hair follicles

• keratinocyte anomalies
  12 January 2019

  epidermal cell anomalies
  Examples
  epidermal hyperplasia
  acanthosis / hyperacanthosis
  See also
  epidermal anomalies
  squamous cell hyperplasia

• cutaneous granular cell tumor
  12 January 2019

  Examples
  cutaneous granular cell tumor https://twitter.com/NMacagnoMD/status/1068226203268583424
  Synopsis
  granular cell tumor
  pseudoepitheliomatous hyperplasia :
  irregular borders , infiltrative borders
  cellular sheets , cellular nests, cellualr cords
  large polygonal cells granular cytoplasm
  central small nuclei
  no atypical features
  IGC : S100+ , SOX10+
  See also
  cutaneous tumors
  granular cell (...)

• elastolytic granuloma
  10 January 2019

  PO
  Annular elastolytic giant cell granuloma initially described by O’Brien in 1975 is a disorder of uncertain etiopathogenesis presenting with annular erythematous plaques predominantly on the sun-exposed areas.
  Hisptopathologically, it is characterized by elastin degenration, multinucleate giant cells, and elastophagocytosis.
  Clinical presentation
  Annular Elastolytic Giant Cell Granuloma (...)

• cutaneous infectious granulomas
  10 January 2019

  Synopsis
  epidermal anomalies
  dermal anomalies edema hypervascularization altered neutrophilic polymorphonuclear infectious agents on special stains
  See also
  cutaneous granulomas
  infectious granulomas

• dermal granulomatous infiltrate
  10 January 2019

  dermal granulomatous infiltration
  Images
  Cutaneous North American blastomycosis https://twitter.com/jessicaghaferi/status/939205412250931200
  Types
  pure granulomas
  granulomas with necrobiosis
  polymorphous granuloma with/without cellular necrosis
  Etiology
  pure granulomas cutaneous sarcoidosis foreign body granuloma silicotic granuloma
  granulomas with necrobiosis annular granuloma GID granulomatous interstitial dermatitis elastolytic granuloma / actinic granuloma (...)

• clear cell papulosis
  4 January 2019

  PO
  Definition : Small hypopigmented macules or papules.

• acquired digital fibrokeratoma
  4 January 2019

  Acral fibrokeratoma; Acquired periungual fibrokeratoma PO WKP
  Definition : Acral fibrokeratoma is a skin lesion characterized by a pinkish, hyperkeratotic, hornlike projection occurring on a finger, toe, or palm.

• ependymal cyst
  21 December 2018

  PO
  Definition: Ependymal cysts within or adjacent to the brain and spinal cord most probably arise during the embryo-fetal period and may be silent for a long period to become symptomatic through their space-occupying properties at any age, including the fetal period and adulthood.
  This entity presents as cysts of ependymal epithelial origin, probably arising by budding and separating from the embryonic central canal and presenting as a space-occupying process.
  They have to be (...)

• sebaceous anomalies
  11 November 2018

  Examples :
  sebaceous hyperplasia
  sebaceous hamartoma
  sebaceous adenoma
  sebaceous carcinoma
  See also
  cutaneous anomalies cutaneous adnexal anomalies

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