Nephrogenic Adenoma of the Urinary Bladder: A Review of the Literature

Figure 3

(a) Nephrogenic adenoma with papillary architecture, lined by columnar cells with pink cytoplasm. (b) Nephrogenic adenoma with tubular architecture composed of small tubules lined by low cuboidal to flattened epithelial cells containing blue mucin. Some nuclei show degenerative atypia with smudgy indistinct chromatin. (c) Nephrogenic adenoma with small tubules simulating signet ring cells and degenerative nuclear atypia. (d) Nephrogenic adenoma with invasion into superficial invasion. (e) Nephrogenic adenoma with strong nuclear positivity with PAX2. (f) Nephrogenic adenoma with cytoplasmic positivity with α-methylacyl-CoA racemase (AMACR) (haematoxylin-eosin, original magnification ×200 (a through d), PAX2, original magnification ×100 (e); AMACR, original magnification ×100 (f)). The figure was reprinted from Kunju Nephrogenic adenoma of report of a case and review of morphologic mimics. Archives of Pathology and Laboratory Medicine 2010; 134: 1455–1459 with permission from Archives of Pathology and Laboratory Medicine copyright 2008, College of American Pathologists. This permission is exclusive to this request specifically for this paper. Additional usage of any printed or electronic material for which the Archives of Pathology and Laboratory Medicine Copy owns copyright would require permission from the editorial office.

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