Background: Although patients with differentiated thyroid cancer (DTC) of follicular cell origin usually have an excellent prognosis, some patients die from progressive tumor.
We further speculate that if an infection (or post-infectious process) can trigger chronic headaches (>3 months duration), there is a possibility to develop NDPH-like headache (or daily headaches) for shorter duration (sub-acute NDPH) with variable prognosis (some as self-limiting condition and some turning into refractory NDPH after 3 months).
Despite the generally ominous prognosis, some patients still benefit from surgical ressection.
Despite a good overall prognosis, some patients suffer relapsing tumors which are difficult to cure.
Some molecular markers are associated with prognosis, some are associated with response to therapy, and some are associated with both.
Although generally associated with an excellent prognosis, some endometrial cancers harbour a higher risk for dissemination or recurrence.
Its relatively high expression in tumors with poorer prognosis, some of which manifest increased glucose uptake, which is associated with a more aggressive phenotype, supports this conjecture.
However, despite the overall favourable prognosis, some women have aggressive tumours with a substantial risk of recurrence and death (Creasman et al, 1987).
CUP accounts for 3 5% of cancer diagnoses, and although it is associated with a bad prognosis, some chemotherapeutic regimens have shown promising results [ 38- 40].
Although LN involvement portends a relatively poor prognosis, some patients exhibit long-term survival following surgery, with, or without systemic chemotherapy [ 4].
