Devil within: an incidental and rare finding of an extragonandal retroperitoneal germ cell teratoma carcinoid tumour

O’Mara, Niall; Cheung, Cherry X.; McManus, Robin; Cross, K.S.

doi:10.1136/bcr-2017-223336

Cited by 1 publication

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Secondly, both of them are composed of mainly fatty material, with possible mixed and various densities. Calcification, mostly bone components which originate from mesoderm (7,8), exits in almost 50% of teratomas (2). But it is rare in dermoid cysts which are exodermal.…”

Section: Comparison Between Dermoid Cyst and Liposarcoma In Clinical And Imaging Featuresmentioning

confidence: 99%

See 1 more Smart Citation

Retroperitoneal dermoid cyst mimicking a liposarcoma based on imaging assessment: case report and literature review

Ma¹,

Xiao²,

Wang³

2021

Gland Surg

View full text Add to dashboard Cite

Dermoid cyst is a kind of mature cystic teratoma that contains only one germ layer. It usually occurs in the head and neck, retroperitoneal dermoid cysts are uncommon. Teratomas are characterized by mixed density and features like calcification or air-fluid level. Here, we present a case of 40-year-old female with a 12.1 cm × 10.0 cm retroperitoneal fatty mass which showed no calcification and few other specific characteristics of teratoma. Thin and uniform separations were observed. On PET-CT, it was adherent to several retroperitoneal organs like left adrenal gland and left kidney, and had a close relationship with several retroperitoneal vessels like aorta, superior mesenteric arteriovenous, left superior renal artery and inferior vena cava. On PET-CT, mild 18F-FDG uptake was observed. Based on the above imaging findings, a clinical diagnosis of liposarcoma was considered. After laparotomy and open surgery transit through a left vertical incision, the histopathologic examination revealed a retroperitoneal dermoid cyst. During a 2-month followup, the patient recovered well without discomfort and recurrence. Comparison between dermoid cyst and liposarcoma in imaging findings was performed. In dermoid cysts, there can be thin and uniform separations, rather than linear, localized and irregular high density in liposarcoma. The difference between dermoid cyst and mature cystic teratoma is yet to be clarified. A review of clinical and histopathological features of retroperitoneal dermoid cyst was also performed to enhance the level of the diagnosis and management.

show abstract

Section: Comparison Between Dermoid Cyst and Liposarcoma In Clinical And Imaging Featuresmentioning

confidence: 99%

“…Dermoid cysts, also known as mature cystic teratoma, are characterized by the presence of tissue from only one germ layer (1). Teratomas often occur in gonad, and extra-gonadal teratomas account for about 1-11% of retroperitoneal neoplasms (2). There were 84% of dermoid cysts reported occurring in the head and neck (3).…”

Section: Introductionmentioning

confidence: 99%