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...

Teratomas and teratocarcinomas are tumors containing tissue derivatives of all three germ-layers. They can be induced by transplantation of animal embryos to ectopic microenvironment. Development of malignant teratocarcinomas depends on embryonic stage, species-specificity and immunological competence of the host. In the man, teratomas and teratocarcinomas usually represent a subtype of germ-ce...

Abstract Background Sacrococcygeal teratoma is a rare tumour, usually presenting in the neonatal period. The benign nature of most tumours and high survival rates would emphasise on importance both cosmetic functional outcomes. We report our extended experience with more cases concentrating aesthetic outcome vertical wound closure following excision large irregular sacrococcygeal tumours. study...

Sacrococcygeal teratomas rarely present in adulthood. Due to its rarity, accurate diagnosis is a clinical dilemma adults. The patient was 41-year-old female who presented with pelvic pain, low back pain radiating the legs and chronic constipation. underwent CT scan which demonstrated 6 cm presacral multiloculated mass compressing rectum. Prior presentation at our clinic, she had an EUS biopsy b...

Sacrococcygeal teratomas have tissues derived from ectoderm, mesoderm, and endoderm.2 Although their embryonic origin is still uncertain, they are believed to arise early in gestation (at around the late second or early third week) from the totipotential cells of Hensen's node (also called the primitive knot), a remnant of the primitive streak in the coccygeal region.5-7 The primitive streak ap...

Teratomas which originate from two or three germ layers are the most common congenital tumors of the childhood and are usually observed in the sacrococcygeal region. The nasopharynx is a considerably rare localization. Nazopharyngeal tumors may lead to significant findings including apnea, respiratory distress and stridor in newborns. In this study, a female newborn who developed respiratory di...

Fetal sacrococcygeal teratoma (SCT) is the most common tumor in the neonatal period and is easily detected by modern ultrasound techniques, mostly during the second-trimester screening. It can cause significant fetal/neonatal morbidity and mortality due to its size, vascular loading, possible rupture, and labor dystocia. Mostly cystic teratomas have favorable prognosis, but if untreated in uter...