Adenocarcinoma of the prostate with atrophic features.
Adenocarcinomas of the prostate with attenuated cytoplasm (i.e., atrophic features) have not been studied formally and represent a diagnostic dilemma to the surgical pathologist. Forty-four cases of adenocarcinoma with atrophic features seen at the Johns Hopkins Medical Institutions were reviewed. Forty-two cases were seen on needle biopsy, and two were from transurethral resection specimens. Neoplastic atrophic glands were characterized by cells with a paucity of cytoplasm, such that the nuclei occupied almost the entire cell height. Atrophic cancers were defined as cancers with atrophic glands constituting > or = 50% of the tumor. Ony two of 44 patients whose prostatic adenocarcinoma showed atrophic features were on hormone therapy at the time of biopsy. Forty-one cases had an infiltrative pattern of growth. Thirty-nine cases were Gleason grade 3 + 3 = 6. Nuclear size was increased in 39 cases, and macronucleoli were noted in 21 cases. The most useful criteria to establish a diagnosis of adenocarcinoma were (1) an infiltrative pattern of growth, (2) the presence of macronucleoli, (3) increased nuclear size, and (4) the presence of adjacent, nonatrophic cancer.
Cina
S J
SJ
Department of Pathology, Johns Hopkins University Medical Institutions, Baltimore, Maryland 21287, USA.
Epstein
J I
JI
D000230:Adenocarcinoma / Q000175:diagnosis / Q000378:metabolism / Q000473:pathology*; D000368:Aged; D001707:Biopsy, Needle; D002466:Cell Nucleolus / Q000473:pathology; D002467:Cell Nucleus / Q000473:pathology; D003593:Cytoplasm / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D007633:Keratins / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D011471:Prostatic Neoplasms / Q000175:diagnosis / Q000378:metabolism / Q000473:pathology*
D007633:Keratins