Cystitis cystica
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| Cystitis cystica | |
|---|---|
| Diagnosis in short | |
 Cystitis cystica. H&E stain. | |
|
| |
| LM | nests of urothelium within the lamina propria with cyst formation, i.e. lumens are present; no nuclear atypia |
| LM DDx | nested urothelial carcinoma, cystitis cystica et glandularis |
| Site | urinary bladder - see urothelium |
|
| |
| Prevalence | common |
| Prognosis | benign |
| Clin. DDx | urothelial carcinoma |
Cystitis cystica is a common inflammatory process of the urinary bladder with cyst formation.
General
- Benign.
- Can be thought of as von Brunn nests with cystic change.[1]
- Called ureteritis cystica if it happens in a ureter.
Microscopic
Features:[3]
- Nests of urothelium within the lamina propria with cyst formation, i.e. lumens are present.
Note:
- Nests should not extend into the muscularis propria.
DDx:
Images
CC - low mag.
CC - intermed. mag.
CC - intermed. mag.
CC - high mag.
CC - intermed. mag.
CC - high mag.
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URINARY BLADDER, BIOPSY: - CYSTITIS CYSTICA. - NEGATIVE FOR MALIGNANCY.
URINARY BLADDER, TRANSURETHRAL RESECTION: - CYSTITIS CYSTICA ET GLANDULARIS, FOCALLY WITH LARGE THIN-WALLED CYSTS. - PROMINENT BENIGN DILATED SUPERFICIAL BLOOD VESSELS, FOCAL. - NEGATIVE FOR MALIGNANCY.
URINARY BLADDER (TRIGONE), TRANSURETHRAL BIOPSY: - SMALL POLYPOID FRAGMENT OF UROTHELIUM CONSISTENT WITH CYSTITIS CYSTICA. - NO SQUAMOUS METAPLASTIC CHANGE IDENTIFIED. - NO EVIDENCE OF MALIGNANCY.
Micro
The sections show a small fragment of urothelial mucosa with small urothelial nests that are focally cystic. The nests are well-circumscribed and approximately of equal size. Adjacent to the nests is a small cluster of bland appearing lymphocytes.
No exophytic component is identified. No papillary structures are apparent. The cytomorphology of the urothelium is bland and no mitotic activity is readily apparent.
See also
References
- ↑ Humphrey, Peter A; Dehner, Louis P; Pfeifer, John D (2008). The Washington Manual of Surgical Pathology (1st ed.). Lippincott Williams & Wilkins. pp. 304. ISBN 978-0781765275.
- ↑ Conces, MR.; Williamson, SR.; Montironi, R.; Lopez-Beltran, A.; Scarpelli, M.; Cheng, L. (Sep 2012). "Urethral caruncle: clinicopathologic features of 41 cases.". Hum Pathol 43 (9): 1400-4. doi:10.1016/j.humpath.2011.10.015. PMID 22397870.
- ↑ Cotran, Ramzi S.; Kumar, Vinay; Fausto, Nelson; Nelso Fausto; Robbins, Stanley L.; Abbas, Abul K. (2005). Robbins and Cotran pathologic basis of disease (7th ed.). St. Louis, Mo: Elsevier Saunders. pp. 1028. ISBN 0-7216-0187-1.
- ↑ Wasco, MJ.; Daignault, S.; Bradley, D.; Shah, RB. (Feb 2010). "Nested variant of urothelial carcinoma: a clinicopathologic and immunohistochemical study of 30 pure and mixed cases.". Hum Pathol 41 (2): 163-71. doi:10.1016/j.humpath.2009.07.015. PMID 19800100.