skin changes associated with internal malignancies can be classified into five groups : 1 ) cutaneous metastasis from internal malignancies , 2 ) non-specific reactional skin changes caused by toxic or allergic processes due to these malignancies , including pruritus cutaneous , urticaria and so on , 3 ) specific skin changes or diseases closely related to the malignancies , including acanthosis nigricans , dermatomyositis , leser- trelat syndrome , 4 ) the syndrome caused by simultaneous effects of oncogenesis both on the skin and on the internal organs , including multiple bowen 's disease , and 5 ) congenital hereditary syndrome , including gardner syndrome , torre syndrome .
C0012634
diseases
C0039082
syndrome