Pseudomyxoma peritonei (PMP) is a rare disease, caused by primary mucinous tumors that arise most frequently from appendix, ovary, or pancreas. Usually diagnosis is made by computed tomography, but ultrasonography can be a very useful imagistic method, if this diagnosis is taken into account by the observer. We present a case of a PMP caused by an appendiceal mucinous carcinoma, in a 34-year-old male patient, with family history of malignancies, diagnosed in our department. He was thereafter surgically treated -appendiceal resection, peritoneal lavage -followed by chemotherapy. We underline the importance of ultrasonography, even though at first encounter, the diagnosis of PMP being generally difficult.

Malignant phyllodes tumors of the breast associating malignancy of both mesenchymal and epithelial components (invasive or in situ ductal carcinoma)

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