No abstract available.
Pregnancy* ; Teratoma* ; Ultrasonography*

Fetal teratomas are histologically diverse masses containing variety of tissues foreign to the anatomic site in which they reside. Sacrococcygeal teratomas are the most common and account for 50% of neonatal teratoma. Faciocervical teratomas are rare and accounts for only 5.5% of all neonatal teratoma, having an incidence of only 20,000:1 to 40,000:1 of live births. Immature teratoma was composed of poor differentiated or embryonal tissue which coexisted mature tissue and immature tissue was originated from neuroepithelium. We have experienced a large faciocervical teratoma and present this case with a brief review of literatures.
Incidence ; Live Birth ; Pregnancy* ; Teratoma* ; Ultrasonography*

Massive congenital intracranial teratoma is a very rare. We report the prenatal ultrasonographic diagnosis of a massive intracranial teratoma in a 323 weeks pregnancy associated with severe hydrocephalus and polyhydroamnios. Prenatal ultrasound revealed a large heterogeneous echoic mass which almost replaced the normal intracranial structure. By transabdominal and transvaginal cephalocentesis, fetus was terminated vaginally and safely. We have reviewed with attention to clinical presentation, sonographic characteristics and associated findings and man-agement and prognosis of massive congenital intracranial teratoma.
Diagnosis ; Fetus ; Hydrocephalus ; Pregnancy ; Prognosis ; Teratoma* ; Ultrasonography

Ultrasongraphy is a safe, noninvasive examination which should be the first procedure in the workup of apatient with a definite or suspected pelvic masses. The diagnostic schemes were derived from correlating the sonographic features with histomorphology in 230 surgically proven pelvic masses. Besides separating pelvic masses into the conventional categories of cystic, complex and solid, grayscale sonographic features of a pelvic mass canbe used to subcategorized these masses into a more useful differential diagnosis. The results are as follows; 1.The most characteristic finding of uterine myoma was midly to mederately echogenic uterine enlargement (90.7%)with a lobulated uterine margin (62.8%), and often less echogenic than the normal uterine echoes. 2. The typical ultrasonographic finding of H-mole was uterine enlargement with multiple small vesicular patterns of intrauterincontents(93%). 3. The most frequent finding of cystic teratoma was cystic mass with echogenic foci(48%), but the echogenic appearance of the lesions was extremely variable. 4. The ultrasonographic findings of ectopic pregnancywere adnexal mass(comlex or cystic), decidual proliferation of the uterus, enlargement of uterine size, fluid incul-de-sac, deveiation of uterus by adnexal mass, and psuedointrauterine appearance. 5. Ultrasound provided information leading to the correct diagnosis in 57% of cases, contributory data in 21.3%, and non-specific information in 10.4%. Errors occured in 3.9% and false-negative in 7.4%.
Diagnosis ; Diagnosis, Differential ; Leiomyoma ; Teratoma ; Ultrasonography ; Uterus

A variety of neoplasms can develop in each tetal organ. Most fetal neoplasms can be detected by careful prenatal ultrasonographic examination. Some neoplosms show specific ultrasonographic findings suggesting the differential diagnosis, but others do not. Knowledge of the presence of a neoplasm in the fetus may alter the prenatal management of a pregnancy and the mode of delivery, and facilitates immediate postnatal treatment. During the last five years, we experienced 32 cases of fetal neoplasms in a variety of organs. We describe their typical ultrasonographic findings with correlating postnatal CT, MRI, and pathologic findings.
Brain Neoplasms/ultrasonography ; Female ; Fetal Diseases/*ultrasonography ; Human ; Lymphangioma/ultrasonography ; Lymphangioma, Cystic/ultrasonography ; Neoplasms/*ultrasonography ; Pregnancy ; Teratoma/ultrasonography ; *Ultrasonography, Prenatal

Retroperitoneal teratoma are comparatively rare and yet difficult to treat and predict the prognosis. A case of primary retroperitoneal teratoma in a 28-year-old woman is presented, which was suspected by excretory urography, ultrasonography and angiography, and then preoperatively diagnosed by computerized tomography.
Adult ; Angiography ; Female ; Humans ; Prognosis ; Teratoma* ; Ultrasonography ; Urography

Gastric teratoma (GT) is an exceeding rare lesion seen most often in male infants, comprising less than 1% of all teratomas in children. A 2-day-old male child was preoperatively diagnosed to have gastric teratoma on ultrasonogram and abdominal computed tomography (CT). On laparotomy, Dumbbell-shape GT was located on lesser curvature of stomach and complete excision of the tumor was performed. The histological examination revealed immature teratoma of the stomach. The child is well 10 months after surgery.
Child ; Humans ; Infant ; Infant, Newborn* ; Laparotomy ; Male ; Stomach ; Teratoma* ; Ultrasonography

Gastric teratoma (GT) is an exceeding rare lesion seen most often in male infants, comprising less than 1% of all teratomas in children. A 2-day-old male child was preoperatively diagnosed to have gastric teratoma on ultrasonogram and abdominal computed tomography (CT). On laparotomy, Dumbbell-shape GT was located on lesser curvature of stomach and complete excision of the tumor was performed. The histological examination revealed immature teratoma of the stomach. The child is well 10 months after surgery.
Child ; Humans ; Infant ; Infant, Newborn* ; Laparotomy ; Male ; Stomach ; Teratoma* ; Ultrasonography

Congenital intracranial teratoma is rare and it's prognosis is very poor with death usually occurring after birth. Moreover it is very rare for intracranial teratoma to be diagnosed in utero. Recently, we experienced a case of fetal intracranial teratoma at 26 weeks of gestation, which is placed in the middle area of cranial cavity. On the monitor of ultrasonogram, the mass was seen as a hyperechogenic mass and its size was 20~30 mm in diameter and it was located in the region of thalamus. The finding of microscopic examination was that neuroepithelial and neuroglial nests and primitive epithelial cells were aggregated and this finding was consistent with immature teratoma. We report a case with a brief review of the literature.
Epithelial Cells ; Parturition ; Pregnancy ; Prenatal Diagnosis ; Prognosis ; Teratoma* ; Thalamus ; Ultrasonography

PURPOSE: To evaluate the ultrasonographic findings of testicular teratoma arising in pre-pubertal children. MATERIALS AND METHODS: We studied 6 cases in 5 patients with pathologically proven testicular teratoma. Ultrasonography was performed in all cases and MRI in 5 cases. The location, size, shape, margin and internal echo pattern of the lesion were evaluated on ultrasonography and the shape, signal intensity and presence or absence of contrast enhancement were evaluated on MRI. RESULTS: The shape of all cases was round or oval and the lesion size ranged from 0.5 to 3.5 cm (average, 1.7 cm). Four of 6 cases were seen as cystic lesions, Three of which were multilocular and one was unilocular. The cystic lesions were filled with echo-free fluid without any solid component. The inner wall and septa were minutely granulated. One of 6 cases was seen as a predominantly cystic lesion containing heterogeneous, high echoic portions. One case was seen as a heterogeneous mixed echoic lesion with dirty posterior sonic shadowing. Three of the 4 cases seen as a cyst on ultrasonography were also seen as a cyst on MRI. In one case seen as a predominantly cystic lesion on ultrasonography, the periphery of the lesion was hypointense and the center was hyperintense on T2-weighted image. The remaining case seen as a heterogeneous mixed echoic mass was markedly heterogeneous in signal intensity both on T2- and T1-weighted images and hyperintense fat components were noted. Contrast enhancement was not seen in any of the 4 cases. CONCLUSION: On ultrasonography, pre-pubertal testicular teratoma is commonly seen as a multilocular or unilocular cyst and a minutely granulated appearance is noted in the inner wall or septa of the cystic lesion.
Child ; Humans ; Magnetic Resonance Imaging ; Shadowing (Histology) ; Teratoma* ; Ultrasonography