Cutaneous Paraneoplastic Syndromes With Nail Involvement

? The cutaneous paraneoplastic syndromes are rare and intrinsically devoid of any neoplastic nature. ? The cutaneous paraneoplastic syndromes most commonly disappear after treatment of the malignancy and reappear in the case of tumor recurrence. ? Acrokeratosis paraneoplastica of Bazex and Dupre? : the commonest malignancy seen is squamous cell carcinoma of the aerodigestive tract. ? Malignant acanthosis nigricans: the nails may appear with leukonychia, a pathognomonic sign.