Primitive neuroectodermal tumor (PENETs) is an uncommon malignancy of bone and soft tissue witch rarely occurs in the kidney. In more than 90% of the cases, the tumor cells relieves a balanced translocation (11; 22) (q24; q12). Immunohistochemical staining may be required for diagnosis of PENET. The cells of tumor express CD99, vimentin, NSE, FL1 but do not express Ck, LCA, myogenin, and WT1. W...

primitive neuroectodermal tumors of the kidney are rare tumors representing about 1% of all sarcomas. extraskeletal primitive neuroectodermal tumors may be found in the genitourinary tract, the testes, ovaries, uterus, or pancreas. renal primitive neuroec- todermal tumors are frequently aggressive and almost 30% of all newly diagnosed cases present with distant metastases. surgical intervention...

INTRODUCTION Primitive neuroectodermal tumor of the uterus is extremely rare. They occur as either pure primitive neuroectodermal tumors or admixed with neoplasms of mullerian origin. CASE PRESENTATION A case of uterine primitive neuroectodermal tumor with adenosarcoma in a 50-year-old Asian Indian woman is presented. Histologically, the neoplasm displayed perivascular pseudorosettes and occa...

the primitive neuroectodermal tumor (pnet) belongs to a group of highly malignant tumors and is composed of small round cells of a neuroectodermal origin. categorized in the same tumor family as ewing sarcoma, the pnet is most likely to occur in bones and soft tissues. however, a small number of pnet cases arising in the pelvis have been reported as well. we present three cases of pelvic pnet: ...

Primitive neuroectodermal tumor in adults is extremely rare. It belongs to the Ewing’s sarcoma family that usually occurs in children and adolescents with a predilection for the truncal and axial soft tissue. Primitive neuroectodermal tumor of the posterior urethra is even less common with no prior reported cases in the Englishlanguage literature. We reported here a case of primitive neuroectod...

We report a rare case of a central nervous system collision tumor in a 40-year-old woman. Histopathological examination of her large temporal tumor revealed two different components making up the tumor tissue. The predominant component of the tumor was found to be a primitive neuroectodermal tumor. The other component was glioblastoma multiforme. Both of these tumors carry a poor prognosis, and...

Neuroblastoma-like schwannoma is known as a rare unusual variant of with difficulties differential diagnosis neuroblastoma, Ewing sarcoma/peripheral neuroectodermal tumor and other cutaneous small round cell tumors. Herein, we describe neuroblastoma-like that was presented painless lesion on the dorsal side left hand in 39-year-old woman. Composed collagen fibers central core rosettes diffuse e...

Primitive neuroectodermal tumors are fairly rare in uterus. A case of uterine body primitive neuroectodermal tumor in a 32-year-old Iranian woman is presented. The patient was admitted with abdominal pain and fever and underwent emergency exploratory surgery with total abdominal hysterectomy, bilateral salpingo-oophorectomy, and pelvic lymph node dissection. Posterior wall of the uterus was nec...