Intracranial lipomas represent a congenital malformation with the abnormal differentiation of the meninx primitiva.1Most intracranial lipomas are found incidentally, #learn more randurls[1|1|,|CHEM1|]# as was the case in our patient. In symptomatic cases, headache and psychomotor retardation are common complaints. Seizures reported in cases of intracranial lipomas appear secondary to the associated anomalies. The pericallosal region as well as the quadrigeminal and suprasellar Inhibitors,research,lifescience,medical cisterns is the common location for intracranial lipomas.2,3 Vermian lipomas are rare, with the literature containing only a few such cases.4-7

The morphological variants of intracranial lipomas are the tubulonodular and curvilinear varieties. Intracranial lipomas reveal homogenous fat density (-60 to -120 HU) on plain CT scan and may contain calcific foci within, especially in the tubulonodular variety. Intracranial lipomas display T1 and T2 hyperintense signals with suppression on fat-saturated images. The associated anomalies are better demonstrated on MRI and include dysgenesis of the corpus Inhibitors,research,lifescience,medical Inhibitors,research,lifescience,medical callosum and vascular anomalies like aneurysm. Surgical excision is not required in most cases. Conflict of Interest: None declared.
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: two cases in the ovary Inhibitors,research,lifescience,medical and one case in the broad ligament. The PNET often exhibits aggressive clinical behavior with worse outcomes than other small round cell tumors. The significant prognostic factors of the PNET include Inhibitors,research,lifescience,medical site of tumor, volume of neoplasm, and presence of metastasis. The treatment protocol is multimodal and includes local surgical treatment followed by chemotherapy. We herein

describe three PNET cases as a rare entity in the pelvis. Pelvic PNETs should be included in the differential diagnosis of pelvic masses. Keywords: Primitive neuroectodermal tumors, Ewing’s sarcoma, Pelvic neoplasm, Ovary, Broad ligament Introduction The primitive neuroectodermal tumor (PNET) of the female genital tract is a rare entity. The term “PNET” was first used by Hart and Earle in 1973 to introduce a group of tumors derived from fetal neuroectodermal cells.1 during According to the cell of origin and location, two main classifications of the PNET include central and peripheral. A group which often involves the sympathetic nervous system or soft tissues and bones is described as the peripheral PNET; this group arises from the neural crest and primitive neuroendocrine cells.2 Risk factors for the PNET have yet to be clearly identified.3 Pelvic PNETs are usually observed in the uterine corpus, ovaries, cervix, and vulva.