Nasopharyngeal carcinoma classification: Difference between revisions
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Image:Lymphoepithelioma met to LN 2.jpg|Undifferentiated nasopharyngeal carcinoma - high power | Image:Lymphoepithelioma met to LN 2.jpg|Undifferentiated nasopharyngeal carcinoma - high power | ||
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===Histologic subclassification=== | |||
World Health Classification (2005) for NPC:<ref name= Librepathology>Nasopharyngeal carcinoma http://librepathology.org/wiki/index.php/Nasopharyngeal_carcinoma</ref> | |||
{| class="wikitable" | |||
! Type | |||
! Histology | |||
! Description | |||
! EBV | |||
! Prevalence | |||
! Prognosis | |||
|- | |||
| 1 | |||
| Keratinizing SCC | |||
| graded poorly-well-differentiated | |||
| -ve | |||
| | |||
| bad | |||
|- | |||
| 2a | |||
| Nonkeratinizing carcinoma, differentiated | |||
| well defined cell borders & tumour nest borders | |||
| +ve | |||
| | |||
| good | |||
|- | |||
| 2b | |||
| Nonkeratinizing carcinoma, undifferentiated | |||
| sheets/syncytial, vescicular nuclei, prominent nucleoli, pink cytoplasm | |||
| | |||
| most common | |||
| | |||
|- | |||
| 3 | |||
| Basaloid SCC | |||
| mimics basal cell carcinoma | |||
| | |||
| least common | |||
| | |||
|} | |||
==References== | ==References== |
Revision as of 17:10, 17 September 2015
Nasopharyngeal carcinoma Microchapters |
Differentiating Nasopharyngeal carcinoma from other Diseases |
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Diagnosis |
Treatment |
Case Studies |
Nasopharyngeal carcinoma classification On the Web |
American Roentgen Ray Society Images of Nasopharyngeal carcinoma classification |
Risk calculators and risk factors for Nasopharyngeal carcinoma classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Faizan Sheraz, M.D. [2]
Overview
Nasopharyngeal carcinoma may be classified according to microscopic features into 3 subtypes: well-differentiated, moderately-differentiated, and undifferentiated type.
Classification
Nasopharyngeal carcinoma may be classified according to microscopic features into 3 subtypes:[1]
- Well-differentiated (keratinizing type)
- Moderately-differentiated (nonkeratinizing type)
- Undifferentiated (most strongly associated with Epstein-Barr virus infection)
-
Undifferentiated nasopharyngeal carcinoma - low power
-
Undifferentiated nasopharyngeal carcinoma - med. power
-
Undifferentiated nasopharyngeal carcinoma - high power
Histologic subclassification
World Health Classification (2005) for NPC:[2]
Type | Histology | Description | EBV | Prevalence | Prognosis |
---|---|---|---|---|---|
1 | Keratinizing SCC | graded poorly-well-differentiated | -ve | bad | |
2a | Nonkeratinizing carcinoma, differentiated | well defined cell borders & tumour nest borders | +ve | good | |
2b | Nonkeratinizing carcinoma, undifferentiated | sheets/syncytial, vescicular nuclei, prominent nucleoli, pink cytoplasm | most common | ||
3 | Basaloid SCC | mimics basal cell carcinoma | least common |
References
- ↑ Richard Cote, Saul Suster, Lawrence Weiss, Noel Weidner (Editor). Modern Surgical Pathology (2 Volume Set). London: W B Saunders. ISBN 0-7216-7253-1.
- ↑ Nasopharyngeal carcinoma http://librepathology.org/wiki/index.php/Nasopharyngeal_carcinoma