BACKGROUND Teratoma at the esophagogastric junction is extremely rare. CASE REPORT A 26-day-old male neonate who presented with vomiting and melena. OBSERVATION Investigations revealed a mass at the esophagogastric junction, which was excised and confirmed to be a teratoma. OUTCOME A fistula at the lower end of the esophagus and an esophageal hiatal hernia were observed as complications. ...

A case is described of a neuroblastoma which appeared to arise in a mature cystic teratoma of the ovary. The literature concerning neural tumours of the ovary is briefly reviewed and the grounds for believing that the development of such neoplasms is an indication of the presence of immature neuroepithelial components in a teratoma, rather than a result of malignant change in a fully mature ter...

We report a case of a psammomatous variant of meningioma arising in a pure and mature testicular teratoma. At immunohistochemistry, the meningiomatous component showed epithelial membrane antigen, S100 protein, and vimentin positive. Benign neoplasms arising in testicular teratomas are extremely rare. To our knowledge, we have not found any such report of psammomatous variant of meningioma in a...

Teratoma of oropharyngeal region, also known as an epignathus, is found in approximately 1:35,000– 1:200,000 live births with female predominance.[1] Congenital malformations such as cleft palate, bifid tongue, dorso-nasal fistula and nasal dermoid cyst may be associated with teratoma of oropharyngeal region in 6 % cases.[2] Management of these cases are challenging with respect to handling of ...

A extragonadal malignant teratoma of the extremity is a rare phenomenon. We describe a extremely rare case of malignant teratoma of the left proximal humerus in a 14-yr-old female. Radiologic evaluations, including magnetic resonance imaging, suggested a malignant bone tumor, but a pathological examination revealed an immature bony teratoma. Bone scintigraphy and positron emission tomography co...

Mature teratoma is the most common primary germ cell tumor in the mediastinum. On rare occasions, cystic teratomas rupture in adjacent structures, such as pleural space, pericardium, lung or tracheobronchial tree. We present a case of a mediastinal mature cystic teratoma in 16-year-old female with complex rupture into the lung, bronchus and skin. Mature mediastinal teratoma fistulized to the sk...

in spite of being histologically benign, sacrococcygeal teratoma (sct) may recur either as a benign or malignant tumor. a total of 26 patients with benign neonatal scts were treated in taleghanee and mofid medical centers from 1986 to 2000. investigations included radiography,abdominal ultrasound and computed tomography (ct) scan and measurement of tumor marker (α-fetoprotein). initial surgical...

RATIONALE Teratoma with nephroblastoma is a rare disease. The most common site at which teratoma with nephroblastoma occurs is the kidney. The mechanisms underlying the development of teratoma with nephroblastoma have not been fully elucidated. PATIENT CONCERNS In the current report, we describe the clinical characteristics of a 3-year-old girl with a complaint of a painless abdominal mass in...

Teratoma is a common tumour of the mediastinum but is rarely found in the lung. The twentieth reported case was published in 1975 by Day and Taylor and four cases have been published since.'-5 A rare condition, not previously recorded, was observed by us in a young male patient. He was found to have a mediastinal teratoma, which was followed 10 years later by the growth of an intrapulmonary ter...

Primary retroperitoneal teratoma is a rare entity in adults. It has a distinctive imaging appearance. We describe the case of a 26-year-old man who was referred to our hospital due to an abdominal tumor. Serial work-up disclosed a teratoma at the retroperitoneum. Laparotomy with tumor resection was performed. Pathological examination revealed a mature cystic teratoma. The postoperative course w...