Mature cystic teratoma of the ovary is a frequent event, but thyroid papillary carcinoma and strumal carcinoid appear in mature cystic ovarian teratoma at the same time is extremely rare. The present case is the first patient of mature cystic ovarian teratoma with thyroid papillary carcinoma and strumal carcinoid reported from China in English. A review of the literature is performed, and the c...

INTRODUCTION Malignant transformation is a rare complication of mature cystic teratoma, with squamous cell carcinoma as the most common malignancy (in 75% of cases). In this article we present a case of a well-differentiated squamous cell carcinoma arising in a mature cystic teratoma and discuss the morphological and clinico-pathological features of malignant transformation in teratoma. CASE ...

Mature cystic teratomas, also known as dermoid cysts, are composed of a mixture of tissues derived from all three germ layers and constitute about 20% of all ovarian neoplasms. However, malignant transformation in a mature cystic teratoma is an uncommon event occurring only in about 1.8% cases. A variety of tumours can arise within a mature cystic teratoma (most common being squamous cell carci...

Neoplasms from germ cell origin are a heterogeneous group of tumors rarely seen in the pediatric population, teratoma is the most frequent among them. They can occur in either gonadal or extragonadal locations. Extragonadal teratoma arising from abdominal viscera is very unusual. There are less than a hundred reported cases of gastric teratoma in the worldwide literature. Since the occurrence o...

Sacrococcygeal teratoma rarely presents in adulthood (reported incidence of 1:87 000). It is more common in females. Adult anorectal teratoma is a rare variant of sacrococcygeal teratoma. The majority of tumors spare the sacrococcygeal bone. The size and location of the tumor within the pelvis dictates whether it is approached surgically through a transabdominal, posterior, or a combined approa...

Mediastinal teratoma is an infrequent germ cell tumour and comprises of 1 to 5% of all mediastinal tumours. We report a case of mediastinal mature teratoma in a 12 year old boy who presented to us with persistent non-productive cough, fever and dyspnoea for the past 7 months. Computed tomographic scan of thorax revealed a large anterior mediastinal mass measuring 11.2x9.9x14cm with calcificatio...

pharyngeal teratomas are rare. we present a mature solid teratoma (so called “hairypolyp”) involving naso- and oro- pharynx in a female infant who presented with a gradually enlarging mass at the roof of the mouth since birth. the pharyngeal mass was protruding into the mouth through a palatine defect present posteriorly which was removed completely. subsequently she developed malposed anterior...

A teratoma in a young West Indian of Negro race is reported. The teratoma presented radiologically in the left upper lobe as an ill-defined shadow which contained a crescent-shaped translucent area and simulated a mycetoma. In addition, the left lung showed widespread nodular shadows. The left lung was resected and the teratoma was found to be endobronchial in position. This is a very rare site...

31 cases of sacrococcygeal teratoma from the children's hospital of ziirich and 25 cases from the children's hospital of tehran are evaluated and compared. in seven cases the tumors were organized. they contained parts of organs or rudimentary extremities. according to general experience the malignancy of tumors is higher in children who are operated on after their second to fourth mo...

Mature teratoma of the pituitary-hypothalamic region is rarely reported in the literature. In this article, we present a 13-year-old girl with clinical and radiological findings that were initially considered as germinoma. However, histological examinations disclosed a mature teratoma. This case highlights that the radiation-induced cerebral edema caused acute hydrocephalus. The mature teratoma...