Malignant acanthosis nigricans: an early diagnostic clue for gastric adenocarcinoma
Abstract Background Malignant acanthosis nigricans (MAN), characterized by the presence of a hyperpigmented, velvety cutaneous thickening, is recognized as a cutaneous sign of internal malignancy.Few MAN has been reported in the Asian race ever before.Case presentation Here, we report a rare case of MAN with severe mucosa and soles and extraordinar