cutaneous tumors

Localization

 epidermal tumors (tumors of the epidermis)
 dermal tumors (tumors of the dermis)

• cutaneous adnexal tumors

 hypodermal tumors (tumors of the hypodermis)

Appearance

 cutaneous small cell tumors
 cutaneous clear cell tumors
 cutaneous large cell tumors
 cutaneous fusiform cell tumors
 cutaneous basaloid cell tumors
 cutaneous cystic tumors
 cutaneous mucinous tumors
 cutaneous poroid tumors

Types
 cutaneous epithelial tumors

• epidermal tumors (tumors of the epidermis )
  • cutaneous squamous cell tumors

• cutaneous neuroendocrine and neuroectodermal tumors
• cutaneous adnexal tumors
  • hair follicle tumors
  • apocrine tumors (sebaceous tumors )
  • eccrine tumors
  • cutaneous adnexal cysts
  • cutaneous adnexal carcinomas

• cutaneous metastasis / metastatic cutaneous tumors
• cutaneous Paget disease

 cutaneous melanocytic tumors

 cutaneous mesenchymal tumors

• cutaneous fibroblastic /myofibroblastic tumors and cutaneous fibrous tumors

 cutaneous histiocytic tumors

• cutaneous histiocytoses
  • cutaneous Langerhans cell histiocytosis
  • cutaneous dendrocytic tumors (cutaneous dendritic tumors )

 cutaneous fibrohistiocytic tumors
 cutaneous mastocytosis
 perivascular tumors
 cutaneous xanthomas
 cutaneous nervous tumors
 cutaneous vascular tumors and cutaneous vascular anomalies
 cutaneous smooth muscle tumors
 cutaneous adipocytic tumors
 cutaneous chondrocytic tumors
 cutaneous lymphomas and cutaenous leukemia localizations
 cutaneous tumors of uncertain differentiation
 ungueal tumors

Diagnostic of cutaneous tumors

 appearance ?

• cutaneous small cell tumors
• cutaneous clear cell tumors
• cutaneous large cell tumors
• cutaneous fusiform cell tumors
• cutaneous blue round cell tumors

 types

• epithelial tumors
  • epidermal tumors
  • cutaneous adnexal tumors
    • sweat gland tumors / eccrine gland tumors
    • sebaceous gland tumors
    • follicular tumors

• mesenchymal tumors

 macroscopical appearance ?

• cutaneous nodules
• pigmented nodules and melanotic nodules
• keratotic nodules
• ulcerated nodules

 differentiation ?

• squamoid differentiation
• sebaceous differentiation

Differential diagnosis

 cutaneous cysts

• cutaneous dysembryoplastic cysts

See also

  cutaneous anomalies
 cutaneous diseases
 dermatitis
 tumors / Tumors

Links

 dermoncology.com

References

 Tsai KY, Tsao H. The genetics of skin cancer. Am J Med Genet. 2004 Nov 15;131C(1):82-92. PMID: 15468170
 Non-melanocytic tumors of the Skin. Atlas of Tumor Pathology. AFIP, 1991.