| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,799,397,451 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
tumor |
Also found in: Medical, Encyclopedia, Wikipedia | 0.01 sec. |
ThesaurusLegend: Synonyms Related Words Antonyms
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | ||
|---|---|---|---|
| 2) We describe a case of a 53-year-old female with a collision tumor composed of breast carcinoma and mucosa-associated lymphoid tissue (MALT) lymphoma, invading each other and occurring as a single mass in the right breast. Several theories have been suggested, including the collision tumor theory, the conversion theory, and the clonal evolution theory. The pathologic presence of multiple different neoplasms coexisting in a single cancer lesion can result either from (1) a collision tumor, in which two or more cutaneous malignancies coincidentally collide and clinically appear as one lesion (46) or (2) a metatypical tumor, in which the epidermal keratinocytes differentiate into tumor cells of both basal cell carcinoma and squamous cell carcinoma, such as a basosquamous (or basaloid squamous cell) carcinoma. |
| Dictionary, Thesaurus, and Translations |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|