Benign tumours of bone Flashcards
(28 cards)
cartilage capped bony projection on external surface of bone containing a marrow cavity that is continuous with the underlying bone
osteochondroma
what age do osteochondromas occur in. where. symptoms. rx
under 20
near epiphyses of long bones
pain and irritation despite being benign
surgical removal
chondrocytes with small round pyknotic nuclei inside hyaline cartilage
chondroma aka enchondroma
benign hyaline cartilage tumour arising in medullary cavity of bones of hands and feet
chondroma
what are the different kinds of chondroma
if single then just chondroma
if multiple then can be olliers disease or maffuccis disease
presentation of olliers disease. FH? malignant risk?
unilateral and involving extremity
not familial or hereditary
malignant transformation is 10-25%
presentation of maffuccis. malignant?
multiple endochondromas with soft tissue and visceral haemongiomas
greater risk of malignant transformation compared to olliers
core is vascular osteoid tissue and peripheral zone is sclerotic bone
osteoid ostoma
who does osteoid stoma occur in and where
young adults and children. M>W
femur, tibia, hands, feet, spine
presentation and treatment of osteoid ostoma
dull pain worse at night. relieved within 20-30 mins by NSAIDs or aspirin
resolves in 33 months without treatment
what kind of tumour is chondroblastoma, who and where
cartilage tumour with an aggressive coarse
teens
epiphyses of long bones
what kind of tumour is chondroblastoma, who and where
cartilage tumour with an aggressive coarse
teens
epiphyses of long bones
chondrocytes with small round pyknotic nuclei inside hyaline cartilage
chondroma aka enchondroma
benign hyaline cartilage tumour arising in medullary cavity of bones of hands and feet
chondroma
what are the different kinds of chondroma
if single then just chondroma
if multiple then can be olliers disease or maffuccis disease
presentation of olliers disease. FH? malignant risk?
unilateral and involving extremity
not familial or hereditary
malignant transformation is 10-25%
presentation of maffuccis. malignant?
multiple endochondromas with soft tissue and visceral haemongiomas
greater risk of malignant transformation compared to olliers
core is vascular osteoid tissue and peripheral zone is sclerotic bone
osteoid ostoma
who does osteoid stoma occur in and where
young adults and children. M>W
femur, tibia, hands, feet, spine
presentation and treatment of osteoid ostoma
dull pain worse at night. relieved within 20-30 mins by NSAIDs or aspirin
resolves in 33 months without treatment
spherical well defined osteolytic foci which can erode into joints and its cell borders have chicken wire calcification
chondroblastoma
what kind of tumour is chondroblastoma, who and where
cartilage tumour with an aggressive coarse
teens
epiphyses of long bones
what is a simple bone cyst and why does it arise
single benign fluid filled cavity
growth defect
what are aneurysmal bone cysts and what are some of the symptoms
lots of chambers filled with blood or serum due to arteriovenous malformation
cortical expansion and painful
