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157 Terms

1
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What is this?
What is this?
Intraosseous Abscess
2
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What is this?
What is this?
Syndactyly
3
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What is this?
What is this?
Craniostynostosis
4
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What is this showing?
What is this showing?
Fractures-found in osteogenesis imperfecta
5
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What is this? What disease?
What is this? What disease?
Blue sclera-found in osteogenesis imperfecta
6
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What disease?
What disease?
Achondroplasia
7
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What does this histo slide show?
What does this histo slide show?
Osteopetrosis
8
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What disease?
What disease?
Osteopetrosis
9
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What does this histo slide show?
What does this histo slide show?
* curvilinear shapes of the trabeculae mimic alphabet characters
* Found in Fibrous Dysplasia
10
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What does this X-ray show?
What does this X-ray show?
Fibrous Dysplasia
11
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What does this histo slide show?
What does this histo slide show?
Haphazard Spicules found in Fibrous Dysplasia
12
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What are the brown spots? What disease?
What are the brown spots? What disease?
Cafe au lait spots found in McCune-Albright Syndrome- associated with Polyostotic Fibrous Dysplasia
13
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What disease?
What disease?
Craniofacial involvement with polyostotic disease -Fibrous Dysplasia
14
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What does this xray show?
What does this xray show?
Fibrous Dysplasia of the Proximal femur with Shepherd’s Crook Deformity
15
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What does this xray show?
What does this xray show?
Polyostotic Fibrous Dysplasia
16
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What does this histo slide show?
What does this histo slide show?
Osteitis Deformans - Jigsaw puzzle-like mosaic pattern appearance to lamellar bone

Sclerotic phase- prominent cement lines
17
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What disease is this found in?
What disease is this found in?
Left: normal Right: Paget’s Disease

Osteitis Deformans
18
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What disease?
What disease?
Cause of Headaches in Osteitis Deformans
19
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What is this xray showing? What disease?
What is this xray showing? What disease?
Bowing of weakened Pagetoid Bone

Sclerotic, irregular thickening of both cortical and cancellous bone - found in Osteitis Deformans
20
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What is this xray showing?
What is this xray showing?
Pagetic Tibia- Osteitis Deformans
21
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What is this showing?
What is this showing?
Myostitis Ossificans-bone formation in muscle
22
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What is this?
What is this?
Femoral Head with wedge shaped infarct- Osteonecrosis
23
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What is this xray showing?
What is this xray showing?
Legg-Calve-Perthes Disease

Idiopathic Avascular Necrosis of the hip
24
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What does this histo slide show?
What does this histo slide show?
Synovial Chondromatosis
25
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What is this showing?
What is this showing?
Slipped Capital Femoral Epiphysis
26
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What does this histo slide show?
What does this histo slide show?
Acute Osteomyelitis
27
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What is this?
What is this?
Acute Osteomyelitis
28
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What is this?
What is this?
Brodie Abscess found in Acute Osteomyelitis
29
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What is this?
What is this?
Intraosseous Abscess (Brodie Abscess) found in Acute Osteomyelitis
30
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What is this xray showing?
What is this xray showing?
Acute Osteomyelitis - Long bones showing radiolucencies
31
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What is this? What is the green pigment called?
What is this? What is the green pigment called?
Pseudomonas Aeruginosa Osteomyelitis

Shows Green pigment - Pyocyanin
32
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What is this showing? What disease is associated with this?
What is this showing? What disease is associated with this?
shows a draining sinus tract

Chronic Osteomyelitis
33
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What is this xray showing and what disease is this associated with?
What is this xray showing and what disease is this associated with?
Osteomyelitis- Characteristic Xray: lytic focus of bone destruction surrounded by a zone of sclerosis
34
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What is the arrow pointing at? What disease is this associated with?
What is the arrow pointing at? What disease is this associated with?
Osteoporosis

Arrow = increased risk of fracture
35
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What is this showing and what disease is this associated with?
What is this showing and what disease is this associated with?
Osteoporotic Vertebral Body-Osteoporosis
36
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What does this histo slide show?
What does this histo slide show?
Osteoporotic Bone
37
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What does this histo slide show?
What does this histo slide show?
Fracture
38
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What is this showing?
What is this showing?
Fracture
39
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What does this histo slide show?
What does this histo slide show?
Rickets - Showing loss of normal cartilage palisades at costochondral junction
40
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What does this histo slide show?
What does this histo slide show?
Normal bone matrix
41
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What is this picture showing? What disease is this associated with?
What is this picture showing? What disease is this associated with?
Leg bowing due to poor mineralization - Rickets
42
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What is this X-ray showing? What disease is it associated with?
What is this X-ray showing? What disease is it associated with?
Rickets- Epiphyses are open, mottled and overgrown
43
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What is this X-ray showing? What disease is it associated with?
What is this X-ray showing? What disease is it associated with?
Adult with Osteomalacia and pseudofractures
44
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What does this histo slide show?
What does this histo slide show?
Rickets- enlarged mass of uncalcified cartilage at costchondral junction
45
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What is this X-ray showing? What disease is it associated with?
What is this X-ray showing? What disease is it associated with?
Rickets- Rachitic Rosary: beadlike prominences at junction of a rib and its cartilage
46
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What disease does this child have?
What disease does this child have?
Rickets- child has Rickets secondary to gluten sensitive enteropathy

Can also see Harris Sulcus groove (the arrow)

Frontal Bossing/squared head is prominent
47
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What is this X-ray showing? What disease is it associated with?
What is this X-ray showing? What disease is it associated with?
Arrow shows Milkman Fracture

Aka: Looser Zone
48
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What disease is this associated with?
What disease is this associated with?
Osteomalacia
49
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What disease is this xray showing?
What disease is this xray showing?
Osteomalacia
50
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What does this histo slide show?
What does this histo slide show?
Von Kassa Stain (calcium) - Osteomalacia

surfaces of the bony trabeculae (*black*) are covered by a thicker than normal layer of osteoid (*pink/purple*) 

Exaggeration of Osteoid Seams
51
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What is the arrow on left showing? on the right?
What is the arrow on left showing? on the right?
Arrow on left hand: Subperiosteal bone resorption

Arrow on right hand: Bulbous bulging from Brown Tumors
52
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What does this histo slide show?
What does this histo slide show?
Hyperparathyroidism
53
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What does this histo slide show?
What does this histo slide show?
Hyperparathyroidism
54
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What is this gross path showing?
What is this gross path showing?
histologic changes of  hyperparathyroidism are known as osteitis fibrosa (refers to accelerated bone remodeling)

This can progress to *cystica*
55
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What area in bone is this called?
What area in bone is this called?
Diaphysis
56
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what area in the bone is this called?
what area in the bone is this called?
Metaphysis
57
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what area in the bone is this called?
what area in the bone is this called?
Epiphysis
58
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What does this histo slide show?
What does this histo slide show?
Osteoid Osteoma
59
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What is this showing?
What is this showing?
Osteoid Osteoma- Well-circumscribed lesion characterized by radiolucency with mineralized nidus (usually
60
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What is this showing?
What is this showing?
Osteoid Osteoma
61
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What is this showing?
What is this showing?
Osteoblastoma
62
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What is this showing?
What is this showing?
Osteoblastoma - Lucent, expansile mass involving spinous process at C5
63
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What is this showing?
What is this showing?
Osteosarcoma
64
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What is this showing?
What is this showing?
Osteosarcoma
65
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What is this showing?
What is this showing?
Osteosarcoma-

* Arrow: Radiographs show “sunburst” pattern, disruption of the cortex and lifting of periosteum forming “Codman triangle”
66
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What is this showing?
What is this showing?
Osteosarcoma
67
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What is this showing?
What is this showing?
Osteosarcoma
68
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What is this showing?
What is this showing?
Osteosarcoma
69
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What is this showing?
What is this showing?
Osteochondroma
70
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What is this showing?
What is this showing?
Osteochondroma
71
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What is this showing?
What is this showing?
Benign cartilage Cap- Osteochondroma
72
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What is this showing?
What is this showing?
Chondroma- Histologically comprised of well-circumscribed nodules of hyaline cartilage
73
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What is this showing?
What is this showing?
Chondroma
74
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What is this showing?
What is this showing?
Chondroma
75
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What is A showing? B?
What is A showing? B?
Maffucci Syndrome

A: multiple soft tissue masses and calcified thrombi

B: Contrast material filling cavernous hemangiomas of the soft tissues
76
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What disease is this showing?
What disease is this showing?
Chondrosarcoma
77
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What disease is this showing?
What disease is this showing?
Histology of grades 1, 2, 3 chondrosarcoma
78
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What is this? What disease is this showing?
What is this? What disease is this showing?
Cartilage growing within medullary cavity and                 through the cortex

Chondrosarcoma
79
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What is this? What disease is this showing?
What is this? What disease is this showing?
Malignant cells producing cartilage

Chondrosarcoma
80
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What disease is this showing?
What disease is this showing?
Chondrosarcoma - “cotton wool" appearance characteristic plain film radiograph finding

“popcorn” appearance on CT
81
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What disease is this showing?
What disease is this showing?
“cotton wool" appearance characteristic plain film radiograph finding - Chondrosarcoma
82
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What disease is this showing?
What disease is this showing?
Chondrosarcoma- Tumor arising from pelvic bone
83
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What disease is this showing?
What disease is this showing?
Chondrosarcoma- Tumor destroying bone
84
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What disease is this showing?
What disease is this showing?
Giant Cell Tumor of bone

Soap Bubble Appearance
85
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What disease is this showing?
What disease is this showing?
Giant Cell Tumor of Bone Histology
86
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What disease is this showing?
What disease is this showing?
Giant Cell Tumor of Bone- Gross Path Image
87
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What disease is this showing?
What disease is this showing?
Ewing Sarcoma
88
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What disease is this showing?
What disease is this showing?
Ewing Sarcoma Histology
89
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What disease is this showing?
What disease is this showing?
Ewing Sarcoma Histology
90
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What disease is this showing?
What disease is this showing?
Ewing Sarcoma
91
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What disease is this showing?
What disease is this showing?
Aneurysmal Bone Cyst
92
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What disease is this showing?
What disease is this showing?
Aneurysmal Bone Cyst
93
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What disease is this showing?
What disease is this showing?
Aneurysmal Bone Cyst
94
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What disease is this showing?
What disease is this showing?
Aneurysmal Bone Cyst
95
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What disease is this showing?
What disease is this showing?
Aneurysmal Bone Cyst
96
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What disease is this showing?
What disease is this showing?
Chordoma
97
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What disease is this showing?
What disease is this showing?
Chordoma
98
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What disease is this showing?
What disease is this showing?
Metastatic Tumor
99
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What disease is this showing?
What disease is this showing?
Metastatic Prostate Carcinoma
100
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What disease is this showing?
What disease is this showing?
Metastatic Breast Carcinoma to vertebral body