Spotters A1

Slide 2
Sacrococcygeal chordoma
Slide 3
Multiple myeloma
Slide 4
Meningioma along the posterior side of the left temporal bone. A, T2-weighted sagittal MR image. The tumor has an intermediate to slightly hyperintense signal. B, T1-weighted coronal nonenhanced MR image. The tumor is hypointense compared to the adjacent cerebellum. C, T1-weighted coronal contrast-enhanced MR image. There is intensive, homogeneous enhancement of the tumor. D, T1-weighted axial contrast-enhanced MR image. Note the enhancement of the adjacent dura (“dural tail”).

Slide 5
localized fibrous tumor of the pleura
Slide 6
Mature teratoma
Slide 7
Metachromatic leukodystrophy
Slide 8
fat necrosis

Slide 9
Diffuse esophageal spasm
Slide 10
Slide 11
Lumbar hernia through the inferior triangle.
Slide 12
Emphysematous cystitis

Slide 13
Fibrous cortical defect
Slide 14
Pulmonary fibrosis caused by sarcoidosis. The mid- zone predominance radiating from the hila with relative sparing of extreme apices and bases is typical of sarcoidosis
Slide 15
Leprosy. Marked bone destruction and pencil-like resorption, most severe at the metatarsophalangeal joint
Slide 16
Multiple small calcifications in the lungs caused by old healed varicella pneumonia.

Slide 17
Fungal infection. Retention cysts, polyps, and fluid are usually of soft tissue density. When there is increased density within sinus cavities, as seen in the maxillary sinuses bilaterally in this patient, one must consider intrasinus hemorrhage, inspissated secretions, or fungal infection
Slide 18
Intraosseous lipoma
Slide 19
left anterior communicating aneurysm. B, The aneurysm is demonstrated on the oblique anteroposterior view of the catheter left carotid cerebral angiogram (arrow).
Slide 20
Bochldek hernia

Slide 21
Chest radiograph shows lucency in the right hemithorax simulating pneumothorax, though the hyperlucent space is traversed by some linear strands of parenchyma
Slide 22
Pancreas divisum type 3
Slide 23
Bismuth poisoning
Slide 24
Morquio syndrome

Slide 25
Combined right middle and lower lobe atelectasis.
Slide 26
Slide 27
Spina bifida
Slide 28
Pulmonary arterial hypertension

Slide 29
Gallbladder cancer associated with choledochal cyst
Slide 30
Hepatic adenoma
Slide 31
Familial acro-osteolysis. Characteristic bandlike areas of lucency crossing the waists of several phalanges.
Slide 32
Lymphangioleiomyomatosis of lung

Slide 33
Axial contrast-enhanced MDCT reveals a finely lobulated lesion (arrow) with a microcystic appearance in the proximal body of the pancreas. B, Corresponding coronal T2-weighted MR image demonstrates the same findings (arrow) and also reveals a central scar (arrowhead) that is virtually pathognomonic for serous cystadenoma.
Slide 34
Enchondroma in a 56-year-old man. A, Radiograph demonstrates a lesion with a cartilaginous matrix in the distal femur. B, CT scan shows calcifications in the matrix of the lesion. C and D, Sagittal T1-weighted spin echo (C) and T2-weighted fast-spin echo (D) images demonstrate a lobulated lesion in the medullary cavity. The exact extension of the lesion is easily appreciated, but the matrix calcifications are better seen on CT.
Slide 35
Multiple pulmonary nodules owing to metastases from a squamous cell carcinoma of salivary gland
Slide 36
Pigmented villonodular synovitis

Slide 37
Slide 38
Popliteal cyst with rupture
Slide 39
Juvenile nasopharyngeal angiofibroma
Slide 40
Popcorn calcifications in pulmonary hamartoma

Slide 41
Cirrhosis and a prominent dysplastic nodule in the right hepatic lobe