melanoma

Malignant melanoma is a malignant neoplasm that arises from melanocytes (or cells that derive from melanocytes).

Pathology

Melanocytes predominantly occur in the basal layer of the epidermis and most melanomas, therefore, arise in the skin.  However, melanocytes do occur in other locations and can give rise to primary melanoma in unexpected locations, e.g. primary uveal malignant melanoma.

Thus, melanoma may be primary or metastatic and the primary form may arise from the skin, or (and much more infrequently) from other sites. Each is discussed separately:

• primary cutaneous melanoma
• primary noncutaneous melanoma
  • meningeal melanoma
  • primary uveal malignant melanoma
  • primary prostatic malignant melanoma
  • primary urethral malignant melanoma
  • mucosal melanoma
    • sinonasal mucosal melanoma
• metastatic melanoma
  • intracranial metastatic melanoma

Radiographic features

In general, radiology is useful for identifying metastatic melanomatous deposits.

Treatment and prognosis

Despite being one of the less common types of skin cancer, they cause the majority (75%) of skin-cancer-related deaths.

Siehe auch:

• Aderhautmelanom
• primary prostatic malignant melanoma
• primary cutaneous melanoma
• Malignes Melanom Metastase
• Hirnmetastasen Malignes Melanom
• primäres malignes Melanom der Urethra

und weiter:

• Tumoren der Schädelkalotte
• solitäre lytische Läsion des Schädels
• osteolytische Knochenmetastasen
• miliare Lungenherde
• WHO-Klassifikation der Tumoren des zentralen Nervensystems
• intraventrikuläres Meningeom
• Knochenmetastasen des Schädels
• ultrasound appearances of liver metastases
• bilaterale axilläre Lymphadenopathie
• Metastasen im Hoden
• differential diagnosis of unilateral axillary lymphadenopathy
• miliary nodules in the exam
• orbital malignant melanoma
• endobronchial metastases
• metastatic axillary lymphadenopathy of unknown primary
• haemorrhagic metastases (mnemonic)
• hutchinson freckle
• MRI appearance of intracranial metastatic melanoma
• Cup Syndrom
• primary malignancies of the nasopharynx
• Pyogenes Granulom
• Lebermetastasen malignes Melanom
• high frequency US in the preoperative assessment of melanoma
• Tumormarker S-100
• gestielte intratracheale Läsionen
• primäres Melanom der Leber
• Melanom der Glandula pinealis
• malignes Melanom der Vagina
• primäre nasopharyngeale maligne Tumoren