Difference between revisions of "Germ cell tumours"

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(→‎Classification: note about fetus in fetu)
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#*Usually benign; however, mature component may give rise to a malignancy like elsewhere in the body.  
#*Usually benign; however, mature component may give rise to a malignancy like elsewhere in the body.  
#**Most common malignancy arising from a mature teratoma: [[squamous cell carcinoma]].
#**Most common malignancy arising from a mature teratoma: [[squamous cell carcinoma]].
#*A special type of mature teratoma is ''fetus in fetu''.
#**This can be thought of as a very well-developed mature teratoma.
#Immature.
#Immature.
#*Uncommon.
#*Uncommon.
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#*Rare.
#*Rare.
#*Highly specialized.
#*Highly specialized.
Note:
*''Fetus in fetu'' may be classified as a well-developed mature teratoma;<ref name=pmid3045784>{{Cite journal  | last1 = Heifetz | first1 = SA. | last2 = Alrabeeah | first2 = A. | last3 = Brown | first3 = BS. | last4 = Lau | first4 = H. | title = Fetus in fetu: a fetiform teratoma. | journal = Pediatr Pathol | volume = 8 | issue = 2 | pages = 215-26 | month =  | year = 1988 | doi =  | PMID = 3045784 }}</ref><ref name=pmid17183856>{{Cite journal  | last1 = Basu | first1 = A. | last2 = Jagdish | first2 = S. | last3 = Iyengar | first3 = KR. | last4 = Basu | first4 = D. | title = Fetus in fetu or differentiated teratomas? | journal = Indian J Pathol Microbiol | volume = 49 | issue = 4 | pages = 563-5 | month = Oct | year = 2006 | doi =  | PMID = 17183856 }}</ref> others have suggested they are distinct from teratomas.
**Separated from teratoma by the presence of a vertebral column.<ref name=pmid17334616>{{Cite journal  | last1 = Majhi | first1 = AK. | last2 = Saha | first2 = K. | last3 = Karmakar | first3 = M. | last4 = Sinha Karmakar | first4 = K. | last5 = Sen | first5 = A. | last6 = Das | first6 = S. | title = Fetus in fetu--a mystery in medicine. | journal = ScientificWorldJournal | volume = 7 | issue =  | pages = 252-7 | month =  | year = 2007 | doi = 10.1100/tsw.2007.56 | PMID = 17334616 }}</ref>


===Mature teratoma===
===Mature teratoma===