10 typical cases, let you learn how to diagnose bone tumors

10 typical cases, makes you bone tumor diagnosis ideas

10 typical cases, makes you bone tumor diagnosis ideas

10 typical cases, makes you bone tumor diagnosis thinking 10 typical cases, so that you learn to bone cancer diagnostic ideas diagnosis

example 1:

example 1:

Example 2:

Example 2:

Example 3:

Example 3:

Example 4:

Example 4:

Example 5:

Example 5:

Example 6:

Example 6:

Example 7:

Example 7:

Example 8:

Example 8:

Example 9:

Example 9:

Example 10:

Example 10:

 

Results of 10 cases:

Results of 10 cases:

1.

Endogenous chondroma

2.

Osteoid osteoma

3.

Bone cyst

4.

Bone cyst with pathological fracture

5.

Poor cystic bone fibrous structure

6.
Osteolytic osteosarcoma

7.
Giant cell tumor of bone

8.
Fibrous cortical defect

9.
Aneurysmal bone cyst

10.
Chondromycinoma

 

Requirements for imaging diagnosis

Requirements for imaging diagnosis

 

To determine whether the bone lesion is a tumor, benign or malignant, whether it is primary or metastatic, and infer the tumor grade type, the key is to determine the benign and malignant tumor
.

To determine whether the bone lesion is a tumor, benign or malignant, whether it is primary or metastatic, and infer the tumor grade type, the key is to determine the benign and malignant tumor
.

1.
Judge whether it is a tumor:

1.
Judge whether it is a tumor:

Tumor and infection differentiation: medical history, bone destruction and bone hyperplasia, lesion area, periosteum hyperplasia, soft tissue changes, left is subacute suppurative osteomyelitis, right is osteosarcoma

Tumor and infection differentiation: medical history, bone destruction and bone hyperplasia, lesion area, periosteum hyperplasia, soft tissue changes, infection left is subacute suppurative osteomyelitis, right is osteosarcoma

 

2.
Judging benign and malignant tumors:

2.
Judging benign and malignant tumors:

1.
Bone destruction: cystic destruction, expansive destruction, and osteolytic destruction .
The cystic bone destruction area of ​​the upper segment of the left femur has smooth edges and no hardened edges
.

1.
Bone destruction: cystic destruction, expansive destruction, and osteolytic destruction .
The cystic bone destruction area of ​​the upper segment of the left femur has smooth edges and no hardened edges
.

 

2.
Cartilage destruction:

Infringement of articular cartilage: the articular surface is blurred and the interruption disappears
.

The joint space is narrow, varying in width, and tumors are visible

Infringement of the epiphyseal cartilage: the boundary of the early calcification zone is blurred, the density is uneven, the interruption disappears, and the epiphyseal cartilage appears soft tissue shadow
.

Normal epiphysis of the distal femur, invading the cartilage of the epiphyseal plate: soft tissue appears with different widths
.

 

Normal epiphysis of the distal femur, invading the cartilage of the epiphyseal plate: soft tissue appears with different widths
.

 

Normal epiphysis of the distal femur, invading the cartilage of the epiphyseal plate: soft tissue appears with different widths

Ivory: high density, unclear state, no bone structure

Flocculent: high density, fuzzy boundary, no bone structure

Needle-like: vertical bones, tightly arranged, needle-like shadows

4.
Tumor cartilage calcification: morphology: circular, arc-shaped, and punctate have diagnostic significance, size, benign, complete morphology, clear boundary, uniform density
.

The malignant is the opposite

5.
Residual bone and reactive bone: Bone hyperplasia, periosteal reaction, benign cases are continuous, localized, clear, thicker than 2mm, malignant cases are intermittent and relatively extensive
.

Benign periosteal reaction of osteoid osteoma, malignant periosteal reaction of osteosarcoma

6.
Soft tissue changes: benign pressure progresses, malignant soft tissue masses
.

 

3.
Is the malignancy primary or metastatic:

3.
Is the malignancy primary or metastatic:

This is simpler, combined with the clinical history, it is generally not difficult
.

This is simpler, combined with the clinical history, it is generally not difficult
.

4.

4.

Fibrous:

Cartilage-derived tumors:

Osteogenic:

Summary: To evaluate bone tumor imaging, the following aspects should be paid close attention to:

Summary: To evaluate bone tumor imaging, the following aspects should be paid close attention to:

Patient’s age, symptoms, signs and laboratory examinations, location and number of lesions, bone destruction method, periosteal reaction, soft tissue changes

Patient’s age, symptoms, signs and laboratory examinations, lesion location and number, bone destruction method, periosteal reaction, soft tissue changes, leave a message here