Mature cystic teratoma is the most common ovarian tumor in young females. We are presenting a 13-year-old African-American female with abdominal distension. Computed tomography of the abdomen showed midline cystic mass. Diagnosis was confirmed after laparoscopic left salpingo-oophorectomy. Malignant transformation of mature cystic teratoma is rare.

Preoperative diagnosis of malignant transformation of an ovarian mature cystic teratoma to squamous cell carcinoma is difficult due to nonspecific tumor markers and imaging findings. This is an interesting case presentation that has prior imaging that demonstrates imaging characteristics of the transformation of a mature cystic teratoma to squamous cell carcinoma.

A 60-year-old man with a pre-existing stable sacrococcygeal teratoma developed acromegaly, ectopic Cushing's syndrome, and 5HIAA secretion. To our knowledge, this represents the first reported case of ACTH and serotonin secretion, and likely GHRH or GH cosecretion, from a sacrococcygeal teratoma in an adult.

Intramedullary teratoma is extremely rare and to our knowledge has been reported in only nine cases in the literature. We report a case of mature cystic teratoma of the conus medullaris. The case was diagnosed by magnetic resonance imaging and operated with microneurosurgical techniques.

Sacrococcygeal teratomas are extremely rare in adults. We present an adult female with a sacrococcygeal teratoma managed in our hospital.

Congenital cystic lesions of the pancreas are rare findings. Furthermore, dermoid cyst of the pancreas is exceptionally uncommon. A review of the world literature showed that only 18 documented cases of dermoid cyst of the pancreas were reported so far. The pre-operative evaluation of this lesion is rather questionable, with definitive diagnosis taking place intra-operatively. Herein, we presen...