RESUMEN
Uterine adenosarcomas are uncommon tumors. It is a biphasic tumor with both epithelial and mesenchymal component. The epithelial component is benign in nature, and the mesenchymal component is malignant. Metastasis is rare in adenosarcoma. We report a case of adenosarcoma with lymph nodal metastasis. A 20-year-old female presented with history of per vaginal bleeding for 1 month. Per vaginal examination revealed a fungating mass protruding through the cervical os. Ultrasonography and magnetic resonance imaging showed a large intrauterine mass. Biopsy of the mass done at an outside hospital was reported as rhabdomyosarcoma. Hence, she was given one cycle of neoadjuvant chemotherapy. Following this, she had profuse bleeding. Emergency hysterectomy with pelvic lymph nodal dissection was performed. The final histopathology was reported as adenosarcoma. One pelvic lymph node showed metastatic deposit of rhabdomyosarcomatous element. In young females presenting with polypoidal mass, uterine adenosarcoma can be considered in the differential diagnosis.
RESUMEN
Background: Extra gastrointestinal stromal tumors (EGIST) are uncommon compared to their gastrointestinal counterparts. EGISTs involve omentum, mesentery, retroperitoneum, pancreas, and pelvis. Materials and Methods: Ten EGISTs were analyzed in this study from January 1995 to November 2011. They were analyzed with respect to clinical features, imageological, histopathological, and immunohistochemical findings. The immunohistochemical stains used were Smooth muscle actin (SMA), Desmin, S-100 protein, CD34 and CD-117. Results: There was slight female preponderance with wide age range. Four of the tumors were in retroperitoneum, three in mesentery, and two in omentum and one in pelvis. Histopathologically majority were spindle cell tumors. Immunohistochemically CD117 was consistently positive followed by CD34. Smooth muscle actin was positive in eight cases, S-100 protein and desmin were positive in two cases each. Conclusion: EGISTs are rare and should be considered in the differential diagnosis of the mesenchymal tumors and immunohistochemistry helps to confirm the diagnosis. Further study with better follow-up is desired to characterize these uncommon tumors.