Recommendations were made for reporting a second pattern of a prostate carcinoma at a 2005 consensus conference for the International Society of Urological Pathology (ISUP).
Situation: primary pattern present in > 95% of tumor (secondary pattern < 5%)
Parameters:
(1) grade of primary type
(2) tumor sampling very limited
Grade of Primary Pattern
Tumor Sampling
Report As
higher
not very limited
(primary) + (primary)
higher
very limited
(primary) + (secondary)
lower
very limited
(primary) + (secondary)
lower
not very limited
(primary) + (primary) with higher grade mentioned as tertiary pattern
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