Acanthosis nigricans associated with alveolar cell carcinoma.

Acanthosis Nigricans associated with clear-cell renal cell carcinoma

Acanthosis nigricans (AN), an entity recognized since the 19th century, is a dermatopathy associated with insulin-resistant conditions, endocrinopathies, drugs, chromosome abnormalities and neoplasia. The latter, also known as malignant AN, is mostly related to abdominal neoplasms. Malignant AN occurs frequently among elderly patients. In these cases, the onset is subtle, and spreading involves...

[Generalized familial acanthosis nigricans associated with hypochondroplasia].

None of them reported any illness or habitual use of medication. We observed that all 3 patients examined presented small stature, with short limbs. The patient reported that all except 1 of her siblings were of small stature, as was 1 of her children. Radiological examinations of the patient revealed shortened long bones diagnostic of hypochondroplasia and similar results were seen in her son....

Malignant Acanthosis Nigricans Associated with Ovarian Cancer

Malignant acanthosis nigricans is a cutaneous eruption characterized by symmetric hyperpigmented hyperkeratosis, dermal papillomatosis, and mucosal involvement associated with internal malignancies. Tripe palms refers to a characteristic velvety thickening of the palms, with exaggeration of normal skin markings. We present the second case of ovarian cancer in association with two coexisting par...

Malignant acanthosis nigricans in adrenal carcinoma.

Crouzon syndrome in association with acanthosis nigricans

Crouzon syndrome is a rare inherited autosomal dominant syndrome characterized by craniosynostosis, midface hypoplasia. Acanthosis nigricans may be associated with Crouzon syndrome, but it differs from the classic crouzon syndrome. This is a report of a 30-year-old-woman who presented acanthosis nigricans coexist with crouzon syndrome.