Online Exclusives
Extrarenal Wilms tumor: a case report and review of the literature
Extrarenal Wilms tumors are extremely rare with only isolated case reports in the pediatric literature. We present the case of a 2-year old boy who presented with a large abdominal mass and constipation. Pathologic diagnosis of the tumor was extrarenal Wilms tumor (ERWT) with favorable histology. We discuss the diagnostic workup, radiologic and operative findings, treatment and review of the literature.Primary mixed germ cell tumor arising in the pancreatic head
Germ cell tumors, comprised of gonadal and extra-gonadal types, are relatively rare tumors arising from primordial germ cells. Extra-gonadal germ cell tumors have been reported to occur at many non-gonadal locations, from the brain to the sacrococcygeal region. However, primary germ cell tumors in the pancreas are extremely rare. Herein, we present the first case of a 12-month-old girl with a primary mixed germ cell tumor, consisting of both endodermal sinus tumor and mature teratoma, in the pancreatic head.Retropleural teratoma presenting as an abdominal mass in a 9-month-old boy
Teratomas are rare tumors that present most commonly in the anterior mediastinum and retroperitoneum. To date, the retropleural primary site has not been reported.Huge orbital teratoma with intracranial extension: a case report
The authors present an unusual case of huge orbital teratoma extended to the cranial fossa in a newborn baby. The clinical features, radiologic findings, and surgical approach are described. Discussion will focus on the surgical technique and on the sparing of the affected eye, comparing the authors approach with other few cases described in literature. Finally, detailed histopathologic finding is provided.Mature gastric teratoma: recurrence in adulthood
A case of mature gastric teratoma developing recurrence after 2 decades after complete excision during infancy is being reported. The patient was successfully managed by surgical resection. Pathologic examination confirmed it to be a mature teratoma.Mature cystic teratoma arising at the porta hepatis: a diagnostic dilemma
Mature cystic teratoma (MCT) is a tumor of embryological origin, which contains tissue derived from any or all germ cell lines found in an abnormal location. We present 2 cases of MCT both arising from the porta hepatis that were incorrectly thought perioperatively to be a choledochal cyst, which subsequently were demonstrated on histology to be a MCT.Retroperitoneal teratoma presenting as an abscess in childhood
Retroperitoneal teratomas are rare, representing only 1% to 11% of primary retroperitoneal neoplasms. They typically present as an asymptomatic abdominal mass but can grow to enormous size. This case describes a patient who initially presented in childhood with an acute abdomen because of an abdominal abscess that was treated with surgical drainage and antibiotics. Fifteen years later, the patient had a recurrence of symptoms and the abscess was ultimately recognized to be an infected retroperitoneal teratoma.Immature teratoma of gallbladder associated with gliomatosis peritonei, a case report
The patient was a 9-month-old girl who presented with an abdominal mass. Computed tomography scan revealed that the huge heterogeneous mass with cystic, calcified, and solid components occupied the upper abdomen, and diagnosis of teratoma was made preoperatively. At the operation, a tumor arising from gallbladder and gliomatosis peritonei with intact ovaries were found. This is a rare case report of teratoma that originated in the gallbladder associated with gliomatosis peritonei.Congenital teratoma of the tongue: a case report and review of the literature
Teratomas of the head and neck are rare. They develop in neonates and are associated with feeding difficulty, airway obstruction, and difficulty in swallowing (which may cause polyhydramnios). Although some tumors consist of immature elements, teratomas of the head and neck are mature in nature, and excision is the most effective treatment. We present a case report of a neonate with a polypoid mass protruding from his mouth. He exhibited respiratory arrest immediately after birth and underwent intubation.Wilms' tumor arising within a mediastinal teratoma
The majority of Wilms' tumors present in young children as an intraabdominal mass of renal origin. The use of multimodal treatment protocols according to internationally recognized treatment guidelines has resulted in extremely high cure rates even in the setting of advanced disease. By comparison, Wilms' tumors in older patients or Wilms' tumors located entirely outside the kidney are extremely rare. Because of the rarity of these tumors and the lack of established treatment guidelines specific to these lesions, older patients with atypical Wilms' tumors are at risk for under treatment and poorer outcomes.The impact of 3-dimensional ultrasonography on perinatal management of a large epignathus teratoma without ex utero intrapartum treatment
We report a case of epignathus teratoma diagnosed at 22 weeks of gestation in which 3-dimensional ultrasound (3DUS) was useful to plan perinatal management. A significant enlargement of the tumor, associated with polyhydramnios and preterm labor, was observed at 35 weeks of gestation. After amniotic fluid evacuation, 3DUS was performed in the presence of pediatricians, obstetricians, and otolaryngologists. Three-dimensional ultrasound revealed that great part of the tumor was located outside the fetal mouth and anterior to fetal mandible, suggesting that the newborn could breathe spontaneously by nasal via.
