Acquired acanthosis nigricans with tripe palms in a patient with interstitial lung disease.

AN: acanthosis nigricans CTD: connective tissue disease ILD: interstitial lung disease NSIP: nonspecific interstitial pneumonia TP: tripe palms INTRODUCTION Tripe palms [(TP); acral acanthosis nigricans (AN)], is a rare cutaneous syndrome in which the palms develop velvety thickening and rugosity that creates an exaggeration or distortion of dermatoglyphics, resembling boiled tripe. In more than 90% of patients, TP is associated with malignancy, predominantly pulmonary and gastric carcinomas. However, in approximately 6% to 10% of patients with TP, no associated malignancy is found. We report a case of TP associated only with interstitial lung disease (ILD), specifically idiopathic nonspecific interstitial pneumonia (NSIP), and no associated malignancy.