Term
|
Definition
-Failure of even a primordium of an organ to develop
-(without creation) |
|
|
Term
|
Definition
-failure of development (growth) of the primordial structure causing organ absence
-(without growth)
-Not acquired |
|
|
Term
|
Definition
-Incomplete development of structure so that it does not reach adult size
-Similar to aplasia, but less severe
-Not acquired |
|
|
Term
| -What are the embryonic sources for a urachal fistula/cyst and Meckles? |
|
Definition
-Urachal is from urachus from allantois
-Meckles is from the vitelline duct (to yolk sac) |
|
|
Term
|
Definition
-Neoplasia of cells in abnormal location
-Such as pancreatic cell tumor in the liver
-Cells will be normal histologically |
|
|
Term
|
Definition
-Neoplasia in tissue of origin
-From overgrowth of mature normal cells |
|
|
Term
|
Definition
-New growth of cells
-This would be things like choristoma, but not things like hypertrophy |
|
|
Term
|
Definition
-Decrease in either the size or number of cells resulting in decreased size grossly
-Acquired |
|
|
Term
|
Definition
-Structure increase due to increased number of cells
-Acquired |
|
|
Term
|
Definition
-Increased size of structure due to increased size of cells
-Acquired |
|
|
Term
|
Definition
-When one type of mature cell is replaced by a different type not normal for that tissue
-Can be squamous or glandular (cuboidal or columnar) metaplasia
-Typically from irritation (bronchial columnar epithelial cells to squamous = squamous metaplasia) |
|
|
Term
|
Definition
-Abnormality in differentiation and maturation usually with nuclear abnormalities and disordered tissue
-Cells usually immature
-Often given in thirds |
|
|
