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Pathological features of hereditary prostate cancer
S I Bastacky1, K J Wojno, P C Walsh
1Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287-2101.
The Journal of Urology
|March 1, 1995
Summary
Hereditary prostate cancer shares pathological features with familial and sporadic forms. This study found no substantial differences, highlighting wide parameter variation across all groups, including precursor lesions in sporadic cases.
Area of Science:
- Oncology
- Pathology
- Genetics
Background:
- Hereditary prostate cancer is a recognized variant with autosomal dominant inheritance.
- It is associated with a rare, highly penetrant gene and early disease onset.
- Understanding its pathological features is crucial for diagnosis and treatment.
Purpose of the Study:
- To characterize the pathological features of hereditary prostate cancer.
- To compare histology in hereditary, familial, and sporadic prostate cancer cohorts.
- To investigate the relationship between prostatic intraepithelial neoplasia and tumor characteristics.
Main Methods:
- Pedigree analysis identified three cohorts: hereditary (n=28), familial (n=26), and sporadic (n=27).
- Histological comparison of radical prostatectomy specimens from clinical stage T2 prostate cancer.
- Statistical analysis of tumor grade, multifocality, and association with prostatic intraepithelial neoplasia.
Main Results:
- No substantial pathological differences were found among hereditary, familial, and sporadic prostate cancer groups.
- Hereditary and familial groups showed lower-grade multifocal tumors (p=0.0001).
- Sporadic cases had more small multifocal cancers linked to prostatic intraepithelial neoplasia (p=0.02).
Conclusions:
- The study failed to demonstrate significant pathological distinctions between hereditary, familial, and sporadic prostate cancer.
- Wide variation in pathological parameters was observed within each group.
- Sporadic cases exhibited features like precursor lesions and multifocality, typically associated with hereditary cancers.