The metastatic melanoma is shown in this anatomical illustration, focused on the spread of skin cancer to distant organs. In the image, a primary skin lesion is visible. Moreover, the spread through blood and lymphatic vessels is illustrated. Furthermore, involvement of organs such as the lungs or liver is shown. On the other hand, systemic progression signs are clearly identified.
In this case, the metastatic melanoma is an advanced stage of skin cancer characterized by tumor dissemination. Additionally, it originates from malignant melanocytes. Consequently, cancer cells migrate from the primary lesion. Likewise, they may colonize distant tissues. For example, lymph nodes or internal organs.
From a pathophysiological perspective, the metastatic melanoma involves vascular and lymphatic invasion. Moreover, tumor cells acquire migratory capacity. Furthermore, they survive in systemic circulation. On the other hand, they implant in new tissues. Consequently, secondary metastases develop.
Regarding symptoms, the metastatic melanoma may present with progressive skin lesions. However, systemic symptoms may also occur. Additionally, organ-specific involvement is common. For example, respiratory symptoms may appear if the lungs are affected. Likewise, fatigue or weight loss may occur.
On the other hand, associated factors include ultraviolet radiation exposure. Consequently, accumulated damage promotes mutations. Moreover, genetic predisposition plays a role. Furthermore, previous melanomas are relevant. Overall, these factors increase progression risk.
Diagnosis is based on clinical evaluation. Moreover, a biopsy confirms the tumor’s nature. Furthermore, imaging studies identify metastases. Consequently, advanced staging is determined. On the other hand, systemic extent is assessed.
Finally, the metastatic melanoma represents a highly complex condition. For instance, it involves multiple organs. However, progression varies by extent. Additionally, it influences prognosis. In conclusion, it is a critical stage of skin cancer.