OBJECTIVE Few studies exist on the demographics and trends of pediatric central nervous system (CNS) tumors in Iran. In this study, we retrospectively reviewed all cases with confirmed CNS tumors admitted to Mofid Pediatric Hospital, Tehran, Iran during the last 18 years. MATERIALS & METHODS Data on gender, age of diagnosis, pathologic classification and tumor location were extracted from the...

Objective: The majority of childhood ovarian masses are benign. However, malignant tumors encountered in adulthood may also be seen childhood. There is still no tumor management protocol for children. We shared our experiences with mass cases operated clinic. Material and Methods: Patients aged 0-18 years had surgery hospital between 2010 2020 due to were included the study. ages patients, maxi...

Primary primitive neuroectodermal tumors (PNET) are rare malignant tumors, affecting mostly children and adolescents. Only three cases of primary breast PNETs have been reported in the medical literature, with none in Korea. We present a case of a primary PNET of the breast in a 33-year-old woman, with imaging and immunohistopathology findings.

Melanotic neuroectodermal tumour of infancy is a rare neoplasm of neural crest origin, predominantly affecting the anterior maxilla of infants. Treatment generally consists of surgical excision. Long-term follow-up is important since recurrence and malignant transformation have been reported. The literature about melanotic neuroectodermal tumour of infancy is reviewed and a case occurring in a ...

While all childhood cancers are rare, tumors that particularly infrequent or underrepresented within pediatrics studied under the umbrella of Children’s Oncology Group Rare Tumor committee, divided into Retinoblastoma and Infrequent subcommittees. The subcommittee has traditionally included an emphasis on globally rare such as adrenocortical carcinoma, nasopharyngeal those in young children, de...

Childhood dermal tumors with melanocytic features is an unusual tumor that can create diagnostic confusion. Among them, paraganglioma-like melanocytic tumors- previous included in melanocytic tumors of uncertain malignant potential- has some particular histopathologic and immunohistochemical features. We describe a case of 13 years old girl with a paraganglioma-like dermal melanocytic tumor of ...

Accurate diagnosis of primitive childhood sarcomas continues to be a formidable problem because these malignancies generally demonstrate very little morphological evidence of their tissue of origin. One of these tumor classes, the Ewing's sarcoma family of peripheral primitive neuroectodermal tumors (pPNETs), are thought to have a neural histogenesis based on evidence of neuroectodermal differe...

Accurate diagnosis of primitive childhood sarcomas continues to be a formidable problem because these malignancies generally demonstrate very little morphological evidence of their tissue of origin. One of these tumor classes, the Ewing's sarcoma family of peripheral primitive neuroectodermal tumors (pPNETs), are thought to have a neural histogenesis based on evidence of neuroectodermal differe...