Published online by Cambridge University Press: 07 September 2011
THE SKIN MAY reflect many visceral diseases, malignancies included. Sometimes, the skin may even give a clue to the underlying neoplasm. The French dermatologist Delacrétaz has definded the term “paraneoplasia:”
Cutaneous paraneoplastic syndromes are nonmetastatic manifestations on the skin as a result of the existence of a malignant visceral tumor and/or disease of the lymphoma group, especially leukaemias. The close relation between the dermatosis and tumor is confirmed by the phenomenon of disappearance or not at all influenced skin disease, if the malignant tumor is eliminated by operation, irradiation or cytostatics. The recurrence of the skin changes (dermatosis) indicates a relapse of the tumor or metastases.
The paraneoplastic signs or syndromes may precede, appear parallel to, or follow the appearance of the internal malignancy. There are many classifications of the paraneoplastic signs and syndromes, utilizing a variety of criteria: Some of them are based on the morphology of skin changes, others are based on the frequency of the association of dermatosis/visceral malignancy. The paraneoplastic signs and syndromes may be divided into two groups: indirect associations and direct associations with parallel evolutions corresponding to the paraneoplastic syndrome. The pathogenesis of the development of paraneoplasias include:
peptides, mediators, and hormones released from the tumor;
immunological defense reactions induced by the tumor antigens and appearing after cross-reaction with the structures of the skin;
deposits of immunocomplexes of tumor antigens and antibodies; and
various cytokines and possibly growth factors.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.