Physical Address

304 North Cardinal St.
Dorchester Center, MA 02124

Vertebral Column and Spinal Cord

IMAGING ANATOMY Vertebral Bodies Ossified vertebral body appears echogenic Cartilaginous tip at spinous process appears hypoechoic Cervical : Upper 7 vertebrae C1 (atlas): No body, spinous process; circular shape C2 (axis): Body with bony peg (dens/odontoid process) C3-C6 similar in size, shape; C7 marked by longest spinous process Thoracic : 12 vertebrae, which articulate with ribs Lumbar : 5 vertebrae Sacrum : Fusion of 5 segments…

Brain

GROSS ANATOMY Supratentorial Structures Gyri : Complex convolutions of brain cortex; hypoechoic on US Sulci (fissure): Cerebral spinal fluid (CSF)-filled grooves or clefts that separate gyri; echogenic on US Sulci separate gyri, fissures separate hemispheres/lobes Frontal lobe Central sulcus separates frontal, parietal lobes Precentral gyrus contains primary motor cortex Parietal lobe Posterior to central sulcus Separated from occipital lobe by parietooccipital sulcus (medial surface) Postcentral gyrus:…

Macrosomia

KEY FACTS Terminology Newborn with birth weight > 4,000 or 4,500 g (10 lb) Fetus is considered at risk for macrosomia if estimated fetal weight (EFW) is > 90th percentile You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Sirenomelia

KEY FACTS Terminology Synonym: Mermaid syndrome Definition: Lower extremity fusion + other skeletal, gastrointestinal, and genitourinary abnormalities You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Meckel-Gruber Syndrome

KEY FACTS Terminology Syndrome composed of classic triad of findings Renal cystic dysplasia in 95-100% Encephalocele or other central nervous system (CNS) abnormality in 90% Postaxial polydactyly in 55-75% Should have at least 2 of 3 classic features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Triploidy

KEY FACTS Terminology Synonym: Partial mole Definition: 69 chromosomes (instead of 46) Most common is diandric triploidy (extra set is paternal) Digynic triploidy if extra set is maternal You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here