KEY FACTS Terminology Spontaneous or traumatic twisting of testis & spermatic cord within scrotum → vascular occlusion/infarction Imaging ↓ or absent blood flow in testicle on Doppler US Transverse side-by-side comparison image of asymptomatic & symptomatic testicles very helpful Spiral…
KEY FACTS Terminology Infectious inflammation of epididymis, testicle, or both Orchitis much less common than epididymoorchitis Imaging Enlargement of affected tissues (i.e., testicle, epididymis, or both) with accompanying ↑ blood flow ↑ blood flow best demonstrated on transverse side-by-side comparison…
KEY FACTS Terminology Definition: Twisting of vascular pedicle of ovary, fallopian tube, or both → venous obstruction → edema → arterial compromise → ischemia → hemorrhagic infarction Imaging Unilaterally enlarged ovary Ovarian volume > 100 mL highly suggestive of torsion…
KEY FACTS Terminology Follicle: Normal physiologic cyst < 1 cm in diameter Dominant follicle may measure up to 3 cm Functional cysts: Can measure up to 3-10 cm Corpus luteal cyst: Dominant follicle after ovulation Follicular cyst: Normal mature follicle…
KEY FACTS Terminology Synonyms Dermoid tumor, dermoid cyst, mature cystic teratoma Definition Teratomas made up of variety of parenchymal cell types from > 1 germ cell layer, usually all 3 Imaging Best clue: Heterogeneous pelvic mass containing Ca²⁺, hair, fat,…
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KEY FACTS Terminology Malignant tumor of sympathetic chain primitive neural crest cells Increasing degrees of cellular differentiation/benignity along spectrum: Neuroblastoma (malignant) → ganglioneuroblastoma → ganglioneuroma (benign) Imaging Location Adrenal (35-48%) Extraadrenal retroperitoneum (25-35%) Posterior mediastinum (16-20%) Small round solitary mass…
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KEY FACTS 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