Bones 2 Flashcards
osteoma defect where on bone
subperiosteal or endosteal cortex surface
what type of bone is impacted with osteoma
woven and lamellar bone
what is gardner syndrome
multiple osteomas
compare sizes of osteoid and osteoblastoma
osteoid: less than 2 cm
osteoblastoma: greater than 2 cm
can NSAIDS be used for relief of osteoid and osteoblastoma
osteoid: yes
osteoblastoma: no ``
most common nonhematopoetic malignant primary bone tumor
osteosarcoma
what is made in osteosarcoma?
osteoid
-painful enlarging mass
what age groups are impacted by osteosarcoma
75% less than 20
elderly
osteosarcoma is associated with what disease
paget’s disease
what is Codman triangle
osteosarcoma tumor lifts periostium
where does osteosarcoma usally occur on bone
metaphysis medulla, knee
osteosarcoma: hereditary retinoblastoma is a defect in what gene
RB
osteosarcoma: Li-Fraumeni syndrome defect in
p53
osteosarcoma metastazies where
lung
Osteochondroma exostosis what happens
mushroom-shaped cartilage-capped
where does Osteochondroma exostosis occur
metaphysis: near growth plate of long tubular bones, especially around knee
Osteochondroma exostosis: multple heredity exotosis isa defect in what gene and how is passed on
EXT1 and EXT2
autosomal dominant
how fast does osteochondrom grow? pain? increases risk for what
slow growing, stops with closure of growth plate
- Multiple Hereditary exostosis
Chondroma is what
benign hyaline cartilage tumor
where is enchondroma
phalynx