chap 6 defns Flashcards
malig melanoma
tumor of melanocytes: malig
Exophyphitic lesions
project from surface
Tumor capsule
rim of compressed fibrous tissue comprised of ECM deposited by fibroblasts
-cystadenoma
epithelial neoplasms derived from glands or ducts
-tumors that form large cystic masses.
renal cell carcinoma
renal epithelium: malig
lymphangioma
lymph vessels: benign
carcinoma
Malignant tumors that arise from any of the 3 germ layers
Carcinoma in situ
when there are dysplastic changes in the full thickness of the epithelium but the lesion doesn’t go through the basement membrane.
leukemia
hematopoetic cells: malig
Hamartomas
disorganized but benign masses composed of cells that live in the involved site. - not true neoplasms!
benign fibrous tumor
mesothelium: benign
Scirrhous.
very hard tumor
malig mixed tumor of salivary gland origin
mixed tumor of saliv origin: malig
teratoma
composed of cells from multiple germ layers (from totipotent)
-usu in ovaries/testis and cystic
osteoma
CT and derivatives: benign
teratocarcinoma
immature teratoma: totipotent cells in gonads/embryoinc rests: malig
hemangioma
bvs: benign
osteogenic sarcoma
CT and derivatives: malig
squamous cell carcinoma
stratified squamous epithelia: malig
hepatocellular carcinoma
liver cells epithelium: malig
renal tubular adenoma
renal epithelium: benign
Acanthosis nigricans
A disorder that is characterized by grey-black patches of thickened hyperkeratotic skin with a velvety appearance. (a paraneoplastic synd)
seminoma; embryonal carcinoma
testicular epithelium (germ cells): malig
tumor markers
biochemical assays for tumor assoc enzs, hormones, and other stuff in blood
cystademocarcinoma
epithelial lining of glands/ducts: malig
hypertrophic osteoarthropathy
- periosteal new bone formation, esp at the distal end of long bones and hand/feet joints
- arthritis of the adjacent joints
- clubbing of the digits (can be seen in other stuff)
(a paraneoplastic synd)
-cystadenofirbroma
fiberous and cyst aspects
invasive meningioma
brain covering: malig
Neoplasia
new growth that has rebelled against the masters and is operating on its own.
AKA tumor
wilms tumor
renal anlage: mixed tumor: malig