paris-trousseau syndrome paris-trousseau syndrome paris-trousseau syndrome (pts) is an inherited disorder characterized by mild hemorrhagic tendency associated with 11q chromosome deletion. it manifests as a granular defect within an individual's platelets. it is characterized by thrombocytes with defects in α-granule components which affects the cell's surface area and, consequently, its ability to spread when necessary. paris-trousseau syndromeother namesparis-trousseau thrombocytopenia fli1 has been suggested as a candidate.