Thirteen cases of @entity263 with endometrioid features were reviewed. The @entity1 were older @entity1 (49-81 years) presenting with symptoms of @entity811 and @entity1876 . Each of the @entity5 displayed exophytic growth into the prostatic urethra, with involvement of the verumontanum. The urethral orifices of the large (primary) prostatic ducts were uniformly involved, and coexistent invasive (acinar) @entity420 was identified in 10 cases (77%). The @entity5 exhibited a complex glandular pattern strikingly similar to uterine @entity1204 , with prominent papillary formation in six cases. All cases demonstrated intense cytoplasmic immunoreactivity for prostatic acid phosphatase and @entity1486 in at least part of the @entity5 . Focal staining for carcinoembryonic antigen was seen in three cases. Five @entity5 examined ultrastructurally demonstrated typical features of @entity263 . Follow-up information was available on all 13 @entity1 (6-83 months). Seven @entity1 died of @entity3 (9-70 months after diagnosis), and the other six @entity1 exhibited recurrent local or @entity3 . The sites of @entity3 were identical to those seen with invasive "acinar" @entity263 , including pelvic lymph nodes, bones, and lungs. Crude 5-year survival was 15%, with a mean survival of 37 months. Adjuvant therapy provided palliative relief for many @entity1 , but did not appear to influence survival. These findings indicate that @entity4348 is a histologically distinct variant of @entity263 , with a more aggressive clinical behavior than previously thought.

XXXX with endometrioid features. Clinical, pathologic, and ultrastructural findings.

@entity1 :: ('9606', 'Species') :: ['patients', 'men'] @entity1204 :: ('MESH:D016889', 'Disease') :: ['endometrial carcinoma'] @entity263 :: ('MESH:D011471', 'Disease') :: ['prostatic adenocarcinoma'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'tumors'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastases', 'metastatic tumor'] @entity811 :: ('MESH:D006417', 'Disease') :: ['hematuria'] @entity1876 :: ('MESH:D001748', 'Disease') :: ['urinary obstruction'] @entity420 :: ('MESH:D000230', 'Disease') :: ['adenocarcinoma'] @entity1486 :: ('354', 'Gene') :: ['prostate-specific antigen'] @entity4348 :: ('MESH:D018269', 'Disease') :: ['endometrioid carcinoma']
@entity263 :: (MESH:D011471,Disease) :: ['Prostatic adenocarcinoma']
