Sweet syndrome (SS) is a rare disease described as a febrile neutrophilic dermatosis with acute onset, the pathogenesis of which has not yet been elucidated. The syndrome is characterized by the sudden onset of erythematous infiltrated papules or plaques located on the upper body and is associated with fever, leukocytosis and neutrophilia. The lesions show a dense dermal infiltration with mature neutrophils. The condition is responsive to systemic steroids. The central nervous system, bones, muscles, eyes, ears, mouth, heart, lung, liver, kidneys, intestines, and spleen may be affected by SS as extracutaneous manifestations. More and more cases have been found to be associated with malignancies, particularly myelodysplastic syndrome, and, less frequently, other hematologic malignancies or solid tumors. Approximately 21% of patients with SS have an associated malignancy and up to 80% of MASS cases are associated with hematological diseases, predominantly myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML). Myelodysplastic syndrome is a clonal disease of the bone marrow characterized by inefficient hematopoiesis, dysplasia of the bone marrow and peripheral cytopenias. Affected patients have a high risk of leukemic transformation. After analyzing later studies and current practical aspects regarding MDS-related SS, we suggest an algorithm for evaluating these patients.

Although most recurrences (approximately 80%) occur in the first three years after a curative resection, a recurrence of CRC can occur even ten years after the initial curative resection (dormant spread of cancer cells). Immunotherapy is an emerging therapy with high potential. The immune system plays a major role in the development of CRC. This has led to innovative new therapies, such as cancer vaccines and T-cell stimulation therapies. Cantastim belongs to the class of nonspecific immunostimulators or immunomodulators, most of which are of bacterial origin and are used as mono- or polymicrobial suspensions. Cantastim is an ethanolic extract obtained from a pathogenic strain of Pseudomonas aeruginosa serotype XV. The beneficial effect of immunotherapy with Cantastim was more pronounced for the local developmental stages (I and II) than for the later stages.

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