Radiology.Academy.Sk

Neuro Review
Appendix
Spleen
Stomach
Kidneys
Kidney
Pancreas
Pelvic congestion syndrome
Liver
Biliary
CT Abd Epiploic Appendagitis
Fractures Wrist
Wrist
Diffuse periosteal reaction
Signs in Uroradiology
Male breast
MRI Breast Indications
CT Head Cerebellar Mass
Biopsies
Diagnostic mammography
Screening mammography
Mammo Pearls
ACR Appropriateness Criteria Breast Cancer Screen
AVM types
CT Orbits
CT Abd NL
Chiari Malformations
Vesicoureteral Reflux (VUR)
Elbow
XRAY Abdominal Series

Abdomen
Cardio
Chest
Dictation Templates
General
GU
Mammography
MSK
neuro
Neuroradiology
NM
Nuclear Medicine
Pediatric
Physics
Ultrasound
Upload

Abdomen

Bowel

Target like (bulls eye) appearance, central hyperechoic and outer hypoechoic ring. 5 layers: mucosa (hyper), muscularis mucosa (hypo), submucosa (hyper), muscularis propria (hypo), adventitia serosa (hyper).


Bowel wall thickening

  • Inflammation: Crohn’s disease, Ulcerative Collitis
  • Infection: Diverticuitis, Pseudomembranous colitis
  • Ischemia
  • Edema
  • Hemorrhage
  • Neoplasm: eccentric; carcinoma, lymphoma, GIST
  • Intussusception: multiple alternating hyperechoic and hypoechoic layers from 3 overlapping mucosal and muscular layers of intussuscipiens and intussusceptum; if no blood flow → necrosis → surgery; lead point (polyp, lipoma, GIST, lymphoma, mets, ca, Meckel’s, sprue)

Pseudomyxoma peritonei

Mucinous implants and gelatinous peritoneal fluid arising from mucinous tumors of the ovary, GI tract (appendix). From loculated, anechoic fluid collections w/ mass effect through septated collections w/ or w/o internal echoes to more echogenic masses w/ or w/o calcs. Mesothelioma can mimic peritoneal carcinomatosis and tuberculous peritonitis (not pseudomyxoma).


Abdominal wall

Rectus sheath hematoma: Lenticular complex fluid collections.
Mets: Hypoechoic or complex solid or cystic masses.

DDx: Desmoid tu, Endometrioma, Lymphoma, Lipoma, Hematoma, Abscess


Lymphadenopathy

Inflammatory, Infectious or Neoplastic.

  • Mesenteric LA: hypoechoic masses surround mesenteric vessels. LA around celiac axis. LA in the Porta Hepatis. LA around the head of pancreas
  • Retroperitoneal LA: displaces aorta and IVC anteriorly. Lymphoma, Sarcoma, Testicular ca

Aortic aneurysm

95% below renal arteries, normal aortic diameter: 2.5 cm at the diaphragm, 2.0 cm in the midabdomen, 1.8 cm at the bifurcation; Aneurysm > 3 cm, Ectasia < 3 cm, Surgery > 5 cm, Fusiform, if Saccular think mycotic or pseudoaneurysm.


IVC

Thrombus usually extends from iliac, renal, hepatic or gonadal veins. Ovarian vein thrombosis is postpartum complication, occurs on the right side and is associated w/ endometritis.