Calciphylaxis is a rare condition characterized by skin ulceration and necrosis as a result of vascular calcification of the small and medium blood vessels of skin and subcutaneous tissues. It mainly occurs in patients with advanced chronic kidney disease and sometimes leads to complications with a fatal outcome. In this report, we describe the case of a 67-year-old male patient with end stage renal disease pre

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Exserohilum rostratum (ER) is a dematiaceous, environmental and fastgrowing fungus causing invasive and cutaneous infections. Immunosuppression is the main risk factor for developing this infection. [1][2][3][4] A 6-year-old male patient was diagnosed with common B-cell acute lymphoblastic leukemia (B-ALL), after attending the emergency room with malaise and prolonged fever over the last week, along with severe pancytopenia. He was admitted for further diagnostic studies and given appropriate therapy (protocol SEHOP-PETHEMA-2013 1 ).Chemotherapy consisted of prednisone, vincristine, daunorubicin, PEG-asparaginase, and triple intrathecal chemotherapy. 4 Fourteen days after admission, he developed a necrotic eschar of 5 cm in diameter in the back of his right leg at the distal third. In suspi-