A 43-year-old man with painless, gross hematuria. Abdominal CT scan revealed a large left renal mass with extension into the left renal pelvis and ureter.
A woman in her mid-30s presented with dyspnea and hemoptysis. CT scan revealed a cystic mass in the right lower lobe. Before she received treatment, she developed right arm weakness and aphasia. She was treated, but four years later suffered another stroke. Follow-up CT scan showed multiple new cystic lesions.
A 29-year-old man was brought to the emergency room after an MVA. He did not have any urine output for 8 hours after he was brought to the ER. An abdominal x-ray taken after a contrast CT showed leakage of contrast material from the ureteropelvic junction on the right.
A 70-year-old man with a history of alcoholism, now with hemoptysis. Contrast CT shows uniformly enhancing, dilated, tortuous structures surrounding the esophagus. In addition, the liver is small and nodular, and the spleen is enlarged.
A 48-year-old woman with right cheek swelling and blocked nasal passage on the right. Contrast CT shows a homogeneous mass that originates from the right maxillary sinus and extends to the nasal cavity and the cheek. The mass shows slightly lower density than surrounding muscle. CT scan from a patient with the same diagnosis shows a mass in the right ethmoidal sinus with destruction of surrounding bony structures.
A 55-year-old man with progressive behavioral and personality changes. MRI shows frontal lobe atrophy with preservation of posterior brain structures.
A 76-year-old man with rectal bleeding and weight loss. CT scan showed a cecal mass with a convoluted gyral contrast-enhancement pattern.
A 56-year-old woman with Hepatitis C, now with abdominal pain and jaundice. Abdominal MRI shows T1 and T2 hyperintense mass in the left lobe of the liver which is enhanced in the arterial phase.
A 5-year-old boy with abdominal distension and irritability. Abdominal CT shows a large, calcified abdominal mass that is obstructing the right kidney and engulfing the large intraabdominal vessels. Bone scan shows multiple skeletal metastases.
A 60-year-old woman with abdominal discomfort and bloating. MRI imaging shows a sharply delineated, heterogeneous mass arising from the wall of the small bowel with cystic and necrotic areas and bowel wall thickening. The mass is isointense relative to skeletal muscle on T1-weighted images and hyperintense on T2-weighted images.
An 81-year-old woman with progressive dysphagia and tongue swelling. Contrast CT shows marked nodular enhancement of the tongue and the lower lip. MRI showed low signal intensity on T1 and T2, and Gad-enhanced T1 showed a homogeneous mass with high signal intensity and irregular margins.
A 50-year-old man with severe right flank pain and hematuria. Renal ultrasound shows a markedly echogenic lesion with a posterior acoustic shadow measuring about 8x10mm in the right kidney.
A 45-year-old man with acromegaly, headache, and visual field defect. Lateral skull x-ray shows an enlarged sella turcica and focal calcification within the mass. T1 weight MRI scan shows a large, hemorrhagic tumor.
A 49-year-old woman with a prolapsed mass in the opening of her urethra. Pelvic CT shows a heterogeneously enhanced mass on the female urethra. Pathology shows ramifying papillae, high nuclear/cytoplasmic ratio, and brisk mitotic activity.
A newborn with a lung lesion diagnoses on prenatal ultrasound. X-ray on the first day of life shows dense lungs bilaterally. X-ray on second day of life shows an air-containing cystic area occupying the right upper lung.
A 55-year-old woman with diarrhea, skin flushing, and rapid heartbeat. CT scan shows a 9cm mass with calcifications in the region of the tail of the pancreas as well as multiple mass lesions within the liver. Contrast-enhanced images show tumor enhancement with central necrosis in the delayed phase.
A 66-year-old man with weakness, severe fatigue, bleeding from the gums, weight loss, and easy bruising. MR imaging shows replacement of the fatty bone marrow. CT scan shows enlarged, hyperplastic lymph nodes in the iliac and para-aortic regions.
A 51-year-old woman with HIV who lives in New England has new-onset, focal encephalitis. MRI scan shows a diffuse lesion centrally in the pons.
An 11-year-old girl with leg pain after a fall. X-ray shows a densely sclerotic lesion in the proximal tibia with an area of lucency and cortical destruction on its lateral margin. Scalloping of the cortex is observed inferior to this area, with amorphous mineralized osteoid shown in the soft tissues.
A 69-year-old woman with headache and visual field defect. An MRI scan shows a fairly well-defined mass with low intensity on T1-weighted sequences and a high intensity on T2-weighted sequences, with hemorrhagic and cystic-appearing areas.
A 66-year-old man with a pruritic, eczematous lesion on his scrotum. Histopathology shows primarily basal layer intraepidermal clusters of large cells with abundant pale granular or vacuolated cytoplasm and large vesicular nuclei with prominent nucleoli.
18-year-old lacrosse player who got hit in the thigh during a game, now with severe left anterior thigh pain and swelling. MRI shows diffuse swelling within the left anterior compartment of the thigh.
A 52-year-old woman who underwent gallbladder surgery two weeks ago. Now has upper abdominal pain, jaundice, and hemoptysis. Ultrasound reveals echogenic material in the bile ducts
A 62-year-old man with a painless lump on his right thigh that developed over several weeks. T1 weighted MRI shows a large mass that is relatively isointense to muscle. T1 image after administration of Gad shows circumferential enhancement of the tumor.
A 36-year-old male with HIV, with a several week history of progressive dementia, apraxia, and visual deficits. T2-weight MRI shows a hyperintense lesion in the left frontoparietal region. CT scan shows a hypoattenuated lesion in the same location with a scalloped lateral margin.
An 8-year-old boy with increasing right lower quadrant pain, fever, and elevated white count. Chest and abdominal x-rays show free air in the abdomen.
A 47-year-old man, recently released from prison, presents with productive cough and weight loss. Chest x-ray shows consolidation in both lung fields and a cavity in the left upper lung field. Findings on a chest x-ray from a different patient with the same diagnosis include multiple cavities in the right middle lobe.
A 5-year-old boy with wrist pain after falling while rollerblading. The first x-ray shows a defect in the distal radius. Three months later a follow-up x-ray shows a well defined cystic lesion in the newly formed subperiosteal bone at the site of the original lesion, and at six months the cyst has completely resolved.
A 79-year-old female with loss of consciousness following a fall. CT scan shows a concave fluid collection in the left frontotemporal region with mild mass effect and some effacement of lateral ventricle. A CT scan on a different patient with the same diagnosis shows a large crescent-shaped fluid collection in the right fronto-temporo-parietal region with a severe midline shift.
A 26-year-old unrestrained driver with shortness of breath s/p motor vehicle accident. Chest x-ray shows a large, well-demarcated area of the right lung devoid of lung markings with slight tracheal deviation away from the affected side. CT scan of a patient with the same diagnosis reveals a crescent-shaped area of air in the pleural cavity on the right.
An 18-month-old boy in Alaska whose primary liquid intake is breast milk presents with poor growth and muscle weakness. Lower extremity x-ray shows curved legs. Wrist x-ray reveals metaphyseal fraying and cupping of distal radius and ulna.
A 6-month-old girl with an abdominal mass. CT scan shows grossly enlarged kidneys bilaterally, and MRI T2 images show multiple high-signal cysts in both kidneys.
16-year-old lacrosse player hit in the face with the ball presents with left eye swelling and impaired extraocular movement on the left. CT scan shows a defect in the floor of the orbit with a soft tissue mass extending into the maxillary sinus. CT scan from a similar patient shows a large defect that is greater than 50% of the left orbital floor.
A 59-year-old woman with an abdominal mass. Sagittal T2-weighted MRI image shows a 15-cm pedunculated, subserosal mass arising from the anterior uterus. On contrast-enhanced sagittal T1-weighted screening MR dynamic images acquired at 30, 60, and 90 seconds post contrast injection (from left to right), the mass shows lower enhancement than the myometrium in the first 2 minutes postinjection.
A 72-year-old woman with a long history of joint pain who has significantly impaired function of her hands and limited mobility due to pain and deformity. Hand x-ray shows severe destruction of the joint architecture with bony erosions. Foot x-ray shows erosion, subluxation, and dislocation of several joints.