White : Diseases of the Skin - Lymphomas, Metastases and Other Malignant Tumors

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Gary M. White & Neil H. Cox

Diseases of the Skin

33	Lymphomas, Metastases, and Other Malignant Tumors

OVERVIEW

Tumors of melanocytes and of epidermal keratinocytes are discussed in Chapters 31 and 32, respectively. Many of the benign skin appendage tumors discussed in Chapter 23 have a malignant counterpart, but these are all rare.
Other tumors that may affect the skin include the following.

  •   Lymphomas, which may be apparently confined to the skin, or part of a systemic disease, and leukemic infiltrates.

  •   Sarcomas and nerve tumors — includes tumors arising from dermal fibroblasts, from dermal dendrocytes, or from blood or lymphatic vessels.

  •   Histiocytoses (Chs 11 and 19).

  •   Neuroendocrine tumors — Merkel cell carcinoma.

  •   Glandular tumors — Paget disease.

  •   Metastases to the skin.

•	Lymphomas, which may be apparently confined to the skin, or part of a systemic disease, and leukemic infiltrates.
•	Sarcomas and nerve tumors — includes tumors arising from dermal fibroblasts, from dermal dendrocytes, or from blood or lymphatic vessels.
•	Histiocytoses (Chs 11 and 19).
•	Neuroendocrine tumors — Merkel cell carcinoma.
•	Glandular tumors — Paget disease.
•	Metastases to the skin.

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