Humpath.com - Human pathology

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• dermal papillae with xanthomatous histiocytes

  15 May

  dermal papillae with xanthomatous histiocytes
  Examples
  verruciform xanthoma : dermal papillae with xanthomatous histiocytes https://twitter.com/Rami_AlRohil/status/1128124213284487175

• dermal papilla

  15 May

  dermal papillae
  Anomalies
  infiltration / infiltrate histiocytic infiltration dermal papillae with xanthomatous histiocytes

• verrucous anomalies

  15 May

  verrucous lesions; verruciform anomalies
  Examples
  verrucous carcinoma
  verruciform xanthoma / skin

• collagen necrobiosis

  13 May

  See also
  collagen and COLs genes
  necrobiosis granuloma annulare hygroma / bursitis

• collagen

  13 May

  Definition : Collagen is the most common protein in the animal world, providing the extracellular framework for all multicellular organisms.
  The collagens are composed of a triple helix of three polypeptide α chains, having a gly-x-y repeating sequence. Currently 27 different types of collagens encoded by 41 genes ( COLs ) dispersed on at least 14 chromosomes are known.
  Pathology
  anomalies of collagen / abnormal collagen mutations of COLs genes osteogenesis imperfecta
  collagen (...)

• necrobiosis

  13 May

  Examples
  necrobiosis lipoidica
  See also
  necrosis tissular necrosis

• cutaneous keratotic lesions

  8 May

  cutaneous keratotic localized anomalies
  Examples
  viral warts
  premalignant actinic keratosis
  squamous cell carcinoma
  basal cell carcinoma

• benign proliferative disease

  7 May

  Three common pathologies and often mixed in an individual case:
  usual epithelial hyperplasia (UEH)
  apocrine metaplasia
  apocrine adenosis
  columnar cell change
  They may all show a continuous spectrum of abnormalities from benign through atypical to in situ carcinoma.
  usual epithelial hyperplasia (UEH)
  intraduct benign epithelial proliferation
  epithelial and myoepithelial cells proliferate together
  Therefore mixed pattern seen on CK 5/6 or P63 immunostaining
  Streaming (...)

• tissular anomalies

  6 May

  Examples
  cellular infiltration
  substance deposits
  crystal deposits
  tissular malformation / tissular dysplasia
  See also
  tissues / tissue
  anomalies

• deep keratinization

  6 May

  Examples
  deep keratinization in esophageal squamous hyperplasia https://twitter.com/andy19801210/status/1124938023806722049
  See also
  keratinization

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