Neoplasia (Terminology) Flashcards
Melanocytes are derived from which embryologic cells?
Neuroectoderm or neural crest cells
What type of epithelium lines the renal proximal tubules?
Simple cuboidal to simple columnar
What is the term for a benign neoplasm of the stomach lining?
Gastric adenoma
What is the term for a benign neoplasm of the thyroid gland?
Thyroid adenoma
A neoplasm arising from the epidermis of the skin would be classified as either mesenchymal or epithelial. Which one?
Epithelial
What is the term for a malignant neoplasm of the non-glandular stomach?
Squamous cell carcinoma
Which is the odd one out, and why? (a) Carcinoma; (b) Choristoma; (c) Melanoma; (d) Sarcoma.
(b) Choristoma, because it is the only member of the list that is NOT a neoplasm. A choristoma is structurally normal tissue forming in an abnormal location (e.g., hair growing from the tongue or cornea).
Lymphoma is a benign neoplasm of lymphocytes. True or false?
False. There is no such thing as a benign lymphocytic neoplasm. All lymphocytic neoplasms are malignant. Lymphoma is exactly the same as lymphosarcoma.
What type of epithelium lines blood vessels?
Simple squamous
Which is the odd one out, and why? (a) Carcinoma; (b) Choristoma; (c) Hematoma (d) Hamartoma.
(a) Carcinoma, because it is the only member of the list that is a neoplasm. The remaining three are non-neoplasms.
What information is contained in the term biliary adenoma?
Benign neoplasm of biliary system, either extrahepatic (i.e., gall bladder lining) or intrahepatic (epithelial neoplasm)
A neoplasm arising from the rib cartilage would be classified as either mesenchymal or epithelial. Which one?
Mesenchymal
A neoplasm arising from the sebaceous glands would be classified as either mesenchymal or epithelial. Which one?
Epithelial
A neoplasm arising from the corneal surface would be classified as either mesenchymal or epithelial. Which one?
Epithelial
What type of epithelium lines the large intestine?
Simple cuboidal to simple columnar
What is the term for a malignant neoplasm of the adrenal cortex?
Adrenocortical adenocarcinoma
What is the term for a benign neoplasm of smooth muscle?
Leiomyoma
What is the term for a malignant neoplasm of the mammary gland lobules?
Mammary adenocarcinoma
What is the term for a benign neoplasm of the exocrine pancreas?
Pancreatic adenoma
There are 5 major types of epithelium throughout the body. Which are considered non-secretory and non-absorptive?
- Stratified squamous; 2. Transitional
What type of epithelium lines the skin?
Stratified squamous
What is the term for a malignant neoplasm of fat?
Liposarcoma
What are mast cells?
Mast cells are migratory cells that live in perivascular connective tissue and produce, among other things, histamine
What information is contained in the term chondrosarcoma?
Malignant neoplasm of cartilage (mesenchymal neoplasm)
A neoplasm arising from hepatocytes of the liver would be classified as either mesenchymal or epithelial. Which one?
Epithelial
What is the term for a malignant neoplasm of the lining of a lymphatic vessel?
Lymphangiosarcoma
What information is contained in the term gastric squamous cell carcinoma?
Malignant neoplasm of NON-glandular part of stomach lining (epithelial neoplasm)
What is the term for a malignant neoplasm of fibrous tissue?
Fibrosarcoma
What is the term for a benign neoplasm of the urinary bladder lining?
Transitional papilloma
What type of epithelium lines the vagina?
Stratified squamous
What is the term for a benign neoplasm of the lining of the ureter?
Transitional papilloma
Lymphosarcoma is a malignant neoplasm of lymphocytes. True or false?
True. Remember that lymphoma is exactly the same as lymphosarcoma. Also remember that there is no such thing as a benign lymphocytic neoplasm; all lymphocytic neoplasms are malignant.
What type of epithelium lines the penis?
Stratified squamous
What is the term for a benign neoplasm of the sebaceous glands?
Sebaceous adenoma
What is the term for a benign neoplasm of the vulvar skin?
Squamous papilloma
A neoplasm arising from adipose tissue would be classified as either mesenchymal or epithelial. Which one?
Mesenchymal
What is the term for a malignant neoplasm of striated muscle?
Rhabdomyosarcoma
What type of epithelium lines the esophagus?
Stratified squamous
What is the term for a benign neoplasm of striated muscle?
Rhabdomyoma
What type of epithelium lines the urinary bladder?
Transitional
A neoplasm arising from plasma cells would be classified as either mesenchymal or epithelial. Which one?
Mesenchymal
What type of epithelium lines the caudal nasal passages?
Pseudostratified ciliated columnar with goblet cells
What is the term for a malignant neoplasm of the corneal surface?
Squamous cell carcinoma
What is the term for a malignant neoplasm of the vulvar skin?
Squamous cell carcinoma
Macrophages and dendritic cells may be grouped together as _______.
Histiocytes or histiocytic cells
What information is contained in the term gastric leiomyosarcoma?
Benign neoplasm of smooth muscle of stomach wall (mesenchymal neoplasm)
What is the suffix used for tumors that develop from stem cells?
-blastoma
What type of epithelium lines lymphatic vessels?
Simple squamous
What information is contained in the term lipoma?
Benign neoplasm of fat (mesenchymal neoplasm)
A neoplasm arising from the adrenal cortex would be classified as either mesenchymal or epithelial. Which one?
Epithelial
What is a hamartoma?
A tumor-like malformation composed of tissue elements normally found at that site, but which are growing in a disorganized mass (e.g., port wine stain in a human). It is NOT a neoplasm
What is the term for a malignant neoplasm of the lining of the peritoneal cavity?
Mesothelioma (NOT mesotheliosarcoma; there is no such term)
What type of epithelium lines the distal urethra?
Stratified squamous
What is the term for a benign neoplasm of the underside of the tongue?
Squamous papilloma
What is the term for a benign neoplasm of the lining of the proximal urethra?
Transitional papilloma
What information is contained in the term osteosarcoma?
Malignant neoplasm of bone (mesenchymal neoplasm)
What is the term for a benign neoplasm of the lining of the pericardial cavity?
There is no such thing. Trick question.
What type of epithelium lines the nictitating membrane?
Stratified squamous
What information is contained in the term transitional cell carcinoma?
Malignant neoplasm of lower urinary tract lining (epithelial neoplasm)
What type of epithelium lines the oropharynx?
Stratified squamous
What is the term for a benign neoplasm of the mammary gland lobules?
Mammary adenoma
What is the term for a malignant neoplasm of the underside of the tongue?
Squamous cell carcinoma