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Ovarian dermoid cyst

R A Alammari, E B Greenberg
No abstract text is available yet for this article.
November 2015: Journal of Minimally Invasive Gynecology
A Corpade, F Olaru, C Olaru
No abstract text is available yet for this article.
September 2016: Ultrasound in Obstetrics & Gynecology
B Talvande, A Dorange, M Lecouflet, M Le Nezet, B Kianifard, H Maillard, M Duquenne
INTRODUCTION: Ovarian neuroendocrine tumors are extremely rare. In the ovary, the term of neuroendocrine tumor is usually related to carcinoid tumors although it may be sometimes applied to neuroendocrine carcinomas of non-small cells or small cells cancers usually occurring in the lungs. These carcinoid tumors may develop de novo or from other tumors including teratomas. CASE REPORT: We report a patient who presented with an ovarian carcinoid tumor developed, near or from a dermoid cyst, which was original by its mode of discovery in the dermatology department...
September 9, 2016: La Revue de Médecine Interne
Jong-Hyun Kim
The term collision tumor refers to the coexistence of two adjacent but histological distinct tumors with no histological admixture at the interface. Collision tumors involving ovaries are extremely rare. A collision tumor composed of a dermoid cyst and fibrothecoma is extremely rare in menopausal women. The mechanism of the development of collision tumor is uncertain. During clinical evaluation, differentiation of characters of these ovarian tumors is important to decide appropriate treatment strategies and for good prognosis...
August 2016: Journal of Menopausal Medicine
Liang Cheng, Bingjian Lyu, Lawrence M Roth
Our knowledge of testicular germ cell neoplasms has progressed in the last few decades due to the description of germ cell neoplasia in situ (GCNIS) and a variety of specific forms of intratubular germ cell neoplasia, the discovery of isochromosome 12p and its importance in the development of invasiveness in germ cell tumors (GCTs), the identification of specific transcription factors for GCTs, and the recognition that a teratomatous component in mixed GCT represents terminal differentiation. Isochromosome 12p and 12p overrepresentation, collectively referred to as 12p amplification, are fundamental abnormalities that account for many types of malignant GCTs of the testis...
August 25, 2016: Human Pathology
Nicolas M Orsi, Mini Menon
Primary ovarian carcinoid tumors are exceptionally rare entities accounting for approximately 0.1% of all ovarian neoplasms. This report describes a primary ovarian neuroendocrine tumor arising in association with a mature cystic teratoma in a 65 year-old woman. Macroscopically, the unilateral adnexal tumor was composed of cystic, solid and mucinous elements which resolved into a dual component lesion histologically. The majority of the tumor displayed an organoid architecture with mild to moderate pleomorphism and no discernible mitotic activity, while approximately 10% consisted of sheets and groups of cells with highly pleomorphic nuclei, necrosis and occasional mitoses...
August 2016: Gynecologic Oncology Reports
Riitta Koivisto-Korander, Ralf Bützow
Mature germ cell derived cystic teratoma of the ovary, i.e. dermoid cyst, is a common ovarian neoplasm, seldom progressing to malignancy. Malignized dermoid cyst is most commonly diagnosed in a woman of approx. 50 years of age, either during or after an operation. Owing to the rarity of the disease, the lines of treatment are based on retrospective series of cases.
2016: Duodecim; Lääketieteellinen Aikakauskirja
Lorna A Brudie, Faizan Khan, Michael J Radi, Melissa M Yates, Sarfraz Ahmad
Mature cystic teratomas constitute 10-20% of all ovarian neoplasms. Malignant transformation is very rare occurring in only 0.1-2% of mature teratoma cases. Malignant melanoma is among the least common transformations. Herein, we describe a case of young woman initially undergoing evaluation for infertility who was found to have malignant melanoma arising in a mature dermoid cyst. She subsequently underwent unilateral salpingo-oophorectomy with staging procedure with benign pathology. There was no need for adjuvant therapy and the patient is without disease to date (nearly 10-months in follow-up now)...
April 2016: Gynecologic Oncology Reports
Abha Sinha, Ayman A A Ewies
Although ovarian mature cystic teratomas are the commonest adnexal masses occurring in premenopausal women, there are many challenges faced by gynecologists on deciding upon the best surgical management. There is uncertainty, lack of consensus, and variation in surgical practices. This paper critically analyzes various surgical approaches and techniques used to treat these cysts in an attempt to outline a unified guidance. MEDLINE and EMBASE databases were searched in January 2015 with no date limit using the key words "ovarian teratoma" and "ovarian dermoid...
2016: Obstetrics and Gynecology International
F Bonilla-Musoles, C Cadete, F Raga, F Bonilla, N G Osborne, O Caballero
OBJECTIVE: To demonstrate that the use of 3D/4D HDLive increases the image quality in the diagnosis of benign cystic ovarian teratomas. MATERIALS AND METHODS: 3D/HDLive ultrasound (US) was used in 31 cases of suspected ovarian cystic teratoma using vaginal 2D US. The following pathognomonic images of mature cystic teratomas were considered for diagnosis: 1) a cystic, unilocular lesion with a densely echogenic tubercle (Rokitansky nodule); 2) a diffuse or partially echogenic mass usually demonstrating sound attenuation; 3) fluid-fluid/fat-fluid levels; 4) dermoid mesh with hyperechogenic calcifications indicating the presence of bone, teeth, or other ectodermally-derived structure; 5) multiple mobile spherical structures (fat globules)...
2016: Clinical and Experimental Obstetrics & Gynecology
Ancuta Augustina Gheorghisan-Galateanu, Mara Carsote, Anda Dumitrascu, Andreea Geleriu, Dana Terzea, Catalina Poiana
Ovarian teratoma has various presentations. We present a 28-year female diagnosed with a tumour after a fainting episode. Medical history was non-contributory except for mild intermittent pelvic pain. Cardiologic and neurological evaluation found no cause of syncope. Abdominal ultrasound revealed a right ovarian tumour that was laparoscopically removed. The menses continued to be normal. The pathological exam showed an encapsulated tumour of 8 cm with hair and small bone parts (mature teratoma with a cystadenoma)...
March 2016: JPMA. the Journal of the Pakistan Medical Association
P Pradhan, M Thapa
Dermoid cysts or mature cystic teratoma are the most common type of ovarian germ cell tumor usually occurring in the reproductive age group. They are commonly unilateral and 10-12 % can be bilateral. They are commonly multicystic and contain sebaceous fluid as well as tissue of three germ cell layers e.g. ectoderm (skin, hair, brain) mesoderm (muscle, fat ,teeth ,bone, and cartilage) and endoderm (mucious and ciliated epithelium).These teratomas usually arise from the gonads but has been found anywhere in the body...
April 2014: JNMA; Journal of the Nepal Medical Association
Yuki Tazo, Yoshihiro Yoshimura, Takashi Shoda, Noriyuki Kyushima, Takemichi Okada, Hitoshi Yamazaki
BACKGROUND: Ovarian mature cystic teratoma (MCT) is a common neoplasm in women. While malignant transformation of MCT is relatively rare, squamous cell carcinoma is the most frequent malignant neoplasm arising from MCT. Some tumor markers have been reported to be useful for prediction of MCT malignant transformation prior to operation. However, widely accepted use of these markers remains to be established. In the present study, we report the usefulness of frozen section assessment during operation, as well as preoperative measurement of tumor marker levels...
2016: Journal of Medical Case Reports
Seung-Hyuk Shim, Sun Joo Lee, Soo-Nyung Kim, Su Hyun Chae, Ji Young Lee
OBJECTIVE: To compare transvaginal versus conventional laparoscopy for dermoid cysts. STUDY DESIGN: We retrospectively analyzed all con-secutive patients with dermoid cysts who underwent transvaginal (n = 219) or conventional (n = 245) laparoscopy from 2007-2013 at our institution. Each group of patients was matched (1:1 ratio) for age, body mass index, previous surgical history, cyst diameter, bilaterality, and cystectomy/oophorectomy. Surgical outcomes were compared between the 2 groups...
November 2015: Journal of Reproductive Medicine
J M Rhymes, T Gorman, R A Sasso
UNLABELLED: Intratubal teratoma is a very rare condition. The authors believe to present the first case of a completely intratubal mature cystic teratoma with a contralateral intraovarian teratoma. Preoperative ultrasound examination allowed the intraoperative diagnosis of this rare condition, hence allowing appropriate surgical management. MATERIALS AND METHODS: A 19-year-old woman presented with a history of pelvic pain and severe dysmenorrhea. Ultrasound examination initially suggested bilateral ovarian dermoids...
2015: Clinical and Experimental Obstetrics & Gynecology
N S Chitrakar, S Suwal, S Neupane
Parasitic ovarian dermoid cysts are very rare. We report a rare case of bilateral ovarian dermoid cysts with parasitic teratoma at the hepato renal space measuring 11x11x6 cm while the other was twisted measuring 10x6x5 cm.Right ovary and tube were absent. The mass found at the hepato renal space was surrounded by and adherent to the omentum with viable tubal fimbria like structure at upper surface. Histopathologically both masses were confirmed as mature ovarian teratoma. The etiology of parasitic teratoma would be due to torsion followed by autoamputation and reimplantation of the right ovarian dermoid cyst...
May 2015: Journal of Nepal Health Research Council
Signe Perlman, Jens J Kjer
INTRODUCTION: Surgical treatment of endometriomas and potential damage to the ovary have been debated. Studies have described the inconsistent risk of unintended removal of ovarian tissue when a cystectomy of an endometrioma is performed. We evaluated the risk of inadvertently removed ovarian tissue during surgery by comparing specimens of endometriomas and dermoid cysts removed laparoscopically. MATERIAL AND METHODS: The material included 326 women in a retrospective cohort study at Rigshospitalet, University hospital in Copenhagen, Denmark from 2011 to 2013...
March 2016: Acta Obstetricia et Gynecologica Scandinavica
Yaakov Melcer, Tal Sarig-Meth, Ron Maymon, Moty Pansky, Zvi Vaknin, Noam Smorgick
BACKGROUND: We sought to investigate and compare the clinical presentation, ultrasound findings, surgical characteristics, and causes of adnexal torsion among three groups: pediatric and adolescent population, reproductive-age women, and pregnant women. MATERIAL AND METHODS: Two hundred twenty-seven surgically confirmed episodes of adnexal torsion in 199 patients treated in our department from January 2008 to December 2014 were retrospectively analyzed. RESULTS: Abdominal pain duration of >24 hours before emergency room presentation was more common in pediatric and adolescent patients compared with reproductive-age and pregnant women (42...
April 2016: Journal of Women's Health
Atsushi Tajima, Chikako Suzuki, Iwaho Kikuchi, Hanako Kasahara, Akari Koizumi, Michio Nojima, Koyo Yoshida
PURPOSE: Because of the need for rapid, accurate clinical differentiation between malignant and benign ovarian masses, we investigated the diagnostic efficacy of the echo pattern classification used together with transvaginal ultrasound. METHODS: We classified, on the basis of six echo pattern types, transvaginal ultrasound images of 405 ovarian masses treated surgically between January 2011 and December 2012. We compared the resulting classifications to the postoperative histopathologic diagnoses and computed the diagnostic sensitivity and specificity of the echo pattern-based classification for malignancy...
April 2016: Journal of Medical Ultrasonics
An-Jen Chiang, Di-Rong Chen, Jiin-Tsuey Cheng, Tsung-Hsien Chang
OBJECTIVE: Primary squamous cell carcinoma (SCC) of the ovary in humans is rare. Most cases represent a malignant transformation of ovarian teratoma, Brenner tumor, or endometriosis. The etiology of this cancer remains largely unknown. Human papillomavirus (HPV) infection is a critical factor that induces tumor formation, particularly cervical cancer. Therefore, this study aimed to evaluate the association of HPV with malignant transformation of mature cystic teratoma (MCT) into SCC of the ovary...
October 2015: Taiwanese Journal of Obstetrics & Gynecology
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