Bone Tumour images Flashcards
To look at Bone tumour imaging and recognise the type and nature.
Is this an aggressive or benign lesion and why ?
Aggressive with a pathological fracture (sunburst appearance)
what is this ?
What characterises this type of bone tumour ?
Chondrosarcoma. It has rings and arcs. Therefore indicative of a cartilaginous tumour.
Commonly found in long bones.
what is this ?
What characteristic for tumour is shown ? /
What is a common symptom ?
OSTEOID OSTEOMA.
Benign bone forming tumour. Commonly found in peads often adolecent. Characteristic Nidus seen.
Common presentation - night pain subsided by analgesics.
What is this ?
What characteristics can you see that justifies that choice ?
GIANT CELL TUMOUR.
Eccentric lesion. Well- defined lytic lesion. This also is near the articular surface.
Common in long bones. (Distal femur/proximal tibia, around the knee)
What is this ?
OSTEOSARCOMA. Bone forming tumour.
what is this ?
What characteristics can you see that justifies that choice ?
ANEURYSMAL BONE CYST. Expansile lesion composed of many blood filled channels. They are typically eccentrically located in the metaphysis of long bones, adjacent to an unfused growth plate.
What is this and why ?
ADAMANTIMONA. Rare primary malignant tumour. usually tibial diaphysis usually anterior cortex. Typically, it appears as a multi-locular or slightly expansile osteolytic cortical lesion.
What is this ? and why is it not an aggressive lesion ?
Simple bone cyst with a pathological fracture. Characteristic fallen fragment sign. Commonly seen in the humerus.
what is this ?
INTEROSSEOUS LIPOMA
non-aggressive lesion in the calcaneum with central calcification. Rare benign bone tumour. Most common in lower limb.
What is this ? Describe the aggressive features on this image ?
EWINGS SARCOMA. Bony destruction. Spicualted hair on end appearance/ sunburst.
What is this ? where do the bone islands usually occur ?
OSTEOPOIKILOSIS.
It is a rare inherited benign condition incidentally found on skeletal x-rays. Its importance is predominantly in correct diagnosis so that it is not mistaken for pathology.
The bone islands are typically clustered around jointsand align themselves parallel to surrounding trabeculae (thus predominantly longitudinally in the epiphyses and metaphyses
What is this ?
OSTEOCHONDROMA.
Benign development abnormality. Projection away from the epiphysis with sometimes associated widening of the metaphysis.
Do you see a lesion here ?
PANCOAST TUMOUR IN THE APICAL LUNG.
What is this and why is the location important in characterising ?
NON OSSIFYING FIBROMA.
Eccentric location and multiloculated. Common in children and adolescents.
Is there a lesion ?
How would you describe this and make a suggestion ?
well defined sclerotic lesion of the left proximal femur with a narrow zone of transition. Non aggressive lesion. OSTEOBLASTOMA. More common in males.
can you see any bony lesion ?
Incidental finding of a BONE ISLAND.
What tumour is presented here ? and where might his primary be ?
OSTEOBLASTIC METS.
Prostate carcinoma is the most common to metastasis like this.
Where are the bone lesions ? IS THIS AGGRESSIVE.
LEFT ILLIAC BONE.
Lung cancer - most lesions are osteolytic.
What is this lesion called ? Is it aggressive or benign ?
Osteoma. (benign).
Lobulated sclerotic mass in the frontal sinus.
What is this lesion ?
I it aggressive ?
Enchondroma. - Benign.
Pathalogical fracture also.
What lesion is this ?
I s it Benign or aggressive ?
PRIMARY INEROSSEOUS HEAMANGIOMA.
Well defined lesion with hair on end appearance. Classified as benign.
What is this lesion ? Is it benign or aggressive ?
CHONDROBLASTOMA - WHICH IS BENIGN. They arise in the epiphysis of long bones in skeletally immature patients.
How would you report this ?
The proximal femurs have a mixture of poorly defined regions of lytic and blastic changes bilaterally. PRIMARY BONE LYMPHOMA.
WHAT DO YOU UNDERSTAND OF MAFFUCI SYNDROME ?
Rare genetic disorder.
Radiologically manifest as MULTIPLE ENCHONDROMAS (benign bone tumours that originate from cartilage) AND SOFT TISSUE HEAMANGIOMAS.
WHAT IS A BRODIES ABCESS ?
This is a complication of OSTEOMYELITIS. They present in children and more often boys. However can occur at any location and any age. They often occur at the ends of long bones.
What could the differentials of this be ?
CHONDROMYOXOID FIBROMA
ABC
NOF
WHAT IS THIS ?
Non ossifying fibroma.
WHAT IS THIS ?
OSTEOSARCOMA
WHAT IS THIS ?
MULTIPLE MYELOMA.
WHAT COULD THIS BE ?
FIBROUS DYSPLASIA - Ground glass matrix and cystic changes.
