Malignant acanthosis nigricans is a rare paraneoplastic skin syndrome mostly associated with gastric adenocarcinoma. Florid cutaneous papillomatosis and tripe palms syndrome are considered to be abortive clinical variants of acanthosis nigricans. Clinical manifestations include pruritic, hyperkeratotic and hyperpigmented plaques with a subsequent formation of velvety papillomas in the involved ...

BACKGROUND Acanthosis nigricans is characterized by hyperpigmentation and hyperkeratosis of the skin or mucous membranes. Its malignant form is associated with internal neoplasms, especially gastric adenocarcinoma (55-61%). Coexistence with prostate cancer is uncommon. In the paraneoplastic type of this dermatosis, the skin and mucous lesions are characteristically of more sudden onset and more...

Acanthosis nigricans is a symmetric eruption characterized by the presence of a hyperpigmented, velvety cutaneous thickening, that can develop on any part of the body, but characteristically affects the flexural areas of the body. The velvety hyperkeratotic lesions can be located on the dorsum of the hands and feet in dark-skinned people in the form of a variant of acanthosis nigricans called a...

florid cutaneous papillomatosis (fcp), is a rare cutaneous marker of internal malignancy. the underlying cancer is usually intra-abdominal (most often gastric in origin), and evolves parallel to the fcp. there is a common association between fcp and the other two eruptive paraneoplastic syndromes, i.e.malignant acanthosis nigricans and the sign of leser-trelat. it seems possible that these synd...

UNLABELLED Paraneoplastic acanthosis nigricans is connected with malignancies in adults in almost 100% of cases. The typical skin changes include: thickening and hyperpigmentation in typical localization with mucocutaneous involvement. PURPOSE The authors report a case of a malignant type of acanthosis nigricans in 42-year-old female patient with hepatocellular carcinoma. CASE REPORT First ...

BACKGROUND Acanthosis nigricans is a feature of several syndromes caused by activating mutations of the fibroblast growth factor receptor 3 gene (FGFR3), including Crouzon syndrome with acanthosis nigricans, thanatophoric dysplasia, and severe achondroplasia with developmental delay and acanthosis nigricans (SADDAN syndrome). OBSERVATIONS We describe a healthy 4-year-old African American girl...

Diffuse cutaneous hyperpigmentation may have various causes: endocrine, metabolic, autoimmune, melanosis secondary to metastatic melanoma, drug or heavy metal poisoning. A cause to remember is acanthosis nigricans, which, in the form of paraneoplastic syndrome may be the first or even the only clinical manifestation of a cancer. The most common cause of malignant acanthosis nigricans is the gas...