Category Ultrasonography

First Trimester

EMBRYOLOGY AND ANATOMY Key Embryological Events Multiple events occur in 1st trimester Ovulation with resultant corpus luteum in ovary Fertilization of ovum → zygote Zygote cleavage → blastocyst → embryoblast + trophoblast Implantation → intrauterine sac-like structure Embryonic development, organogenesis…

Epidermoid Cyst

KEY FACTS Terminology Slow-growing subdermal cyst that contains keratin and is lined by stratified squamous epithelium Does not contain dermal elements (dermoid cyst) You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become…