KEY FACTS Terminology • Lipoma: Benign soft tissue tumor composed of mature adipose tissue Imaging • Subcutaneous location more common than subfascial (intra- or intermuscular) • Well-defined, oblong-shaped, encapsulated mass…

KEY FACTS Terminology • Cryptorchidism, cryptorchism • Definition: Incomplete descent of testis into base of scrotum Imaging • Unilateral or bilateral absence of testis in scrotum • Located anywhere from…

KEY FACTS Terminology • Benign prostatic hyperplasia (BPH) ○ Term reserved for histopathologic pattern of smooth muscle and epithelial cell proliferation ○ Hyperplasia correct term since BPH is characterized by…

GROSS ANATOMY Overview • Body (corpus) : Upper 2/3 of uterus ○ Fundus: Superior to ostia of fallopian tubes • Cervix : Lower 1/3 of uterus ○ Isthmus: Junction of…

KEY FACTS Terminology • Complex heterogenous syndrome of ovulatory dysfunction, menstrual irregularity, and androgen excess • Rotterdam criteria for polycystic ovarian syndrome (PCOS) developed in 2003: 2 of 3 criteria…

IMAGING ANATOMY Overview • Rotator cuff ○ Consists of supraspinatus, infraspinatus, teres minor, subscapularis muscles, and tendons ○ Cuff tendons blend with shoulder joint capsule ○ Supraspinatus and infraspinatus tendons…

EMBRYOLOGY AND ANATOMY Overview • Trachea separates from foregut and developing esophagus ○ Failure to separate results in tracheoesophageal fistula • Lungs go through several stages of development from primitive…

KEY FACTS Terminology • Chronic, autoimmune-mediated lymphocytic inflammation of thyroid gland Imaging • Features vary with stages of disease (acute, chronic, end stage) and extent of involvement (diffuse or focal)…

KEY FACTS Terminology • Collagenous degeneration of rotator cuff ± biceps tendons with proteoglycan deposition Imaging • Supraspinatus > infraspinatus > biceps > subscapularis • Diffusely thickened tendon with diffuse…

KEY FACTS Terminology • Synonym: Adrenocortical adenoma Imaging • Varies from 2-5 cm, typically < 3 cm, bilateral in 10% • Can be bilateral (10%) • Nonspecific sonographic appearance •…