Low-resistance waveforms are visible on pulsed Doppler US Right salphingo-oopherectomy was then performed and as the frozen-section revealed a benign ovarian neoplasm, the operation was terminated. Sagittal T2-weighted a and axial fat-suppressed T1-weighted b images show a well-defined, heterogeneous, apparently complex tumor.
Board review style question 1.
You have tests and see the doctor every few months to begin with. Primary ovarian stromal neoplasm comprised of various proportions of signet ring and spindle cells Cytoplasmic vacuoles in signet ring cells are negative for lipid, mucin and glycogen Diffusely positive for vimentin, variably express inhibin A, calretinin and actin - alpha smooth muscle but typically are negative for cytokeratin and EMA.
Signet ring stromal tumor. Read about causes of cancer. What are sex cord stromal tumours? Adult granulosa cell tumor with signet ring cell change Krukenberg tumor Microcystic stromal tumor Signet ring stromal ovarian sex cord stromal tumor with signet ring cells in Bedford Thecoma with signet ring cell transformation.
Journal List Diagn Interv Radiol v. The most important prognostic factors are the stage and degree of histologic differentiation 313 Nonetheless, strong hypointensity on T2-weighted images is not characteristic 1318 Fig. Transvaginal US images a, b show a heterogeneous and apparently complex mass that is predominantly solid with focal cystic areas arrowa.
The solid components exhibit an intermediate T2 signal and T1 isointensity to the muscle as well as avid contrast uptake arrows.
Tumors that induce hyperandrogenicity may present with virilization signs e. Sclerosing stromal tumor of the ovary in pregnancy: clinical, ultrasonography, and magnetic resonance imaging findings. Conflict of interest.