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Paraneoplastic dermatoses are diseases that may be associated with an internal malignancy. The awareness of paraneoplastic dermatoses among clinicians and pathologists is of great importance in early diagnosis and management of internal malignancy, in monitoring for tumor recurrence, and for clarifying the pathophysiology. The signs and symptoms of dermatological lesions are easily detectable, therefore, they may be the reason for a cancer patient to refer to a physician. Cutaneous paraneoplastic syndromes usually have a course parallel to the underlying malignancy. In this review, the most common cutaneous paraneoplastic syndromes are overviewed. [ABSTRACT FROM AUTHOR]

We report a case of paraneoplastic encephalitis associated with anti-Ma2 antibodies. Medical history and thorax computed tomography findings suggested malignant mesothelioma. Pleural biopsy results were compatible with high-grade neoplastic infiltration. Although the biopsy could not differentiate the type of neoplasm, mesothelioma was considered a strong possibility in this poorly differentiated lung carcinoma. To the best of our knowledge this is the first case report of paraneoplastic encephalitis associated with anti-Ma2 antibodies and mesothelioma. [ABSTRACT FROM AUTHOR]