Right Atrial and Right Ventricular Obstruction by Recurrent Stromomyoma

Benign Metastasizing Leiomyomatosis Diagnosed by Echocardiography

“…1 These benign tumors may cause edema and ascites due to right atrial and right ventricular obstruction. 2 Pulmonary embolization, requiring surgical embolectomy, also may result. 3 Echocardiography may be diagnostic, as it was in this case.…”

A well circumscribed uterine endometrial stromal tumor with smooth muscle differentiation recurred as a low grade endometrial stromal sarcoma: Is tumor margin enough for the diagnosis?

“…5 Among the recurrent tumors, some recurred as a low grade endometrial stromal sarcoma as in our case, 1,6 and some as a mixed form. 5,7 Thus, the histologically distinct stromal and smooth muscle components in the tumor seem to have transdifferentiation along the tumor recurrences or metastases.…”

“…However, smooth muscle differentiation recognizable by routine light microscopic examination is relatively rare 1 . An arbitrary cut‐off point of 30% is currently used for designating ‘mixed’ endometrial stromal and smooth muscle tumors; 1,4 however, the amount of either endometrial stromal or smooth muscle component does not seem to critically determine the clinical behavior of these mixed neoplasms, because recurrence and extensive invasion of the tumor have been observed in tumors composed predominantly of benign appearing smooth muscle components and a minor endometrial stromal tumor components 5 . Among the recurrent tumors, some recurred as a low grade endometrial stromal sarcoma as in our case, 1,6 and some as a mixed form 5,7 .…”

Resection of an intravenous leiomyoma with intracardiac extension with use of endovascular techniques

“…[4][5][6] Patients can exhibit symptoms related to intra-cardiac extension of tumor weeks to years after undergoing hysterectomy because of a benign leiomyoma. [7][8][9] The histologic findings of local and distant recurrences are always benign. These tumors can be difficult to differentiate from other intravascular malignancies, including leiomyosarcomas of the vascular wall, renal cell carcinoma, or Wilms' tumor.…”