Paraneoplastic Cerebellar Degeneration Secondary to BRAF Mutant Melanoma Metastasis from an Occult Primary Cancer.

Melanoma metastasis from an unknown primary cancer has an incidence of 3.2% among melanoma patients. Furthermore, paraneoplastic neurological syndromes (PNS) are rare, occurring in 1-3% of patients with malignancies.

Alveolar hemorrhage associated with cocaine consumption.

Cocaine is an illegal drug; its abuse and toxicity are a public health problem due to its high morbidity and mortality. Cocaine can affect the cardiovascular, central nervous and respiratory systems. The case of a 42-year-old male without history of chronic or degenerative diseases, but previous cocaine consumption is presented in this report.