deck_5410068 Flashcards
What is this?
Osteoma•Adults and children•M:F = 3:2•Prognosis depends on proximity to essential anatomic structures•Present with pain, headache, vision changes•Associated with Gardner syndrome•Adults and children••M:F = 3:2••Prognosis depends on proximity to essential anatomic structures••Present with pain, headache, vision changes••Associated with Gardner syndrome
What is this?
Osteoma: dense compact bone with a paucicellular stroma
What is this?
Osteoma
An association of Osteomas
What is this?
Osteoid osteoma- presents with bone pain that resolves with aspirin in young males commonlyBelow:Coronal CT scan shows a radiolucent nidus (black arrow) with surrounding bony sclerosis and cortical thickening (white arrow)
What are these arrows pointing to? Tumor?
Osteoid osteomaSide: randomly interconnectedtrabeculae of wovenbone, prominentlyrimmed by a single celllayer of osteoblastsBottom: The stroma surrounding the neoplastic boneconsists of loose connective tissue containingdilated and congested capillaries
What is this?
OsteoblastomaSimilar to an osteoid osteoma, but is larger (>2cm), arises in the vertebrae, presents with bone pain that doesn’t respond to aspirin.60% female, children and young adultsComprised of anastomosing trabeculae of osteoid and woven bone rimmed by osteoblasts
What tumor?
What disease?
Osteosarcoma forming malignant osteoid in bone
What is this?
Osteosarcoma- tumor cells vary in size and often have bizarre giant cells and mitoses
What is this?
ChondromaGross pathology: gray-white masswith color and consistency similar to normal cartilage(this one is less well circumscribed than typical)
What is this?
Osteochondroma
What is this?
Osteochondroma-Note the prominentcartilage cap of thisgross pathologic specimen.
What is this?
Enchondroma•Usually asymptomatic•Age 20-49, no gender preference•Small bones of hands and feet•Mostly solitary•Treatment = excision or nothing
What is this?
