Inverted papilloma
| Inverted papilloma | |
|---|---|
| File:Inverted papilloma high mag.jpg | |
| Classification and external resources | |
| Specialty | Lua error in Module:Wikidata at line 446: attempt to index field 'wikibase' (a nil value). |
| ICD-O | 8053/0 |
| Patient UK | Inverted papilloma |
An inverted papilloma is a type of tumor in which surface epithelial cells grow downward into the underlying supportive tissue. It may occur in the nose and/or sinuses or in the urinary tract (bladder, renal pelvis, ureter, urethra). When it occurs in the nose or sinuses, it may cause symptoms similar to those caused by sinusitis, such as nasal congestion. When it occurs in the urinary tract, it may cause blood in the urine.
Diagnosis By MRI
Inverted papillomas are definitively diagnosed by histologic examination. However, Magnetic Resonanace Imaging (MRI) may show a characteristic feature described as a Convoluted Cerebriform Pattern (CCP). A retrospective study published in the American Journal of Neuroradiology concluded that identification of CCP by MRI in a patient with a nasal tumor made the diagnosis of Inverted papilloma quite likely. The study reported the sensitivity and specificity to be 100% and 87% respectively. CCP can be associated with other malignant tumors as well.[1]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Inverted papilloma entry in the public domain NCI Dictionary of Cancer Terms
Additional images
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Bladder inverted papilloma histopathology (1).jpg
Histopathology representing an inverted papilloma of the urinary bladder that was cystoscopically resected. Hematoxylin and eosion stain.
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Bladder inverted papilloma histopathology (2).jpg
Histopathology representing an inverted papilloma of the urinary bladder that was cystoscopically resected. Hematoxylin and eosion stain.
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Bladder inverted papilloma histopathology (3).jpg
Histopathology representing an inverted papilloma of the urinary bladder that was cystoscopically resected. Hematoxylin and eosion stain.
This article incorporates public domain material from the U.S. National Cancer Institute document "Dictionary of Cancer Terms".
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