Lymphoepithelial cyst of the pancreas: A case report and summary of imaging features of pancreatic cysts

Namba, Yuzaburo; Oshita, Akihiko; Nishisaka, Takashi; Namba, Maiko; Sasaki, Tamito; Matsugu, Yasuhiro; Itamoto, Toshiyuki

doi:10.1016/j.ijscr.2019.01.022

Cited by 9 publications

(9 citation statements)

References 16 publications

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“…ese features are similar to those of dermoid and epidermoid cysts, but LEC is more common in males whereas the latter two do not have gender preference [16]. Moreover, while LECs have lymphoid follicles, dermoid cysts have mucinous cells with sebaceous respiratory tissue, and epidermoid cysts have splenic tissues [17,28,29]. Since the patient in our case lacked the latter two findings while having lymphocytes present on cytopathology, this further confirms that the patient had a pancreatic LEC.…”

Section: Discussionsupporting

confidence: 74%

A Rare Presentation of Pancreatic Lymphoepithelial Cyst: A Case Report and Review

Kim

Ramay

Richards

et al. 2020

Case Reports in Medicine

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Pancreatic lymphoepithelial cyst (LEC) is a rare, benign collection of keratinizing squamous epithelial cells encapsulated by lymphoid tissue. Because of its limited data and nonspecific features that can mimic malignant lesions, LECs can lead to unnecessary operations. A 62-year-old male with a known pancreatic mass presented with abdominal pain. CT scan showed an increased mass in the pancreatic head, and endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) revealed “rare fragments of benign-appearing squamous epithelium in a background of keratin debris, cyst contents, and scattered lymphocytes,” consistent with a lymphoepithelial cyst. Pancreatic LEC is an extremely rare lesion that comprises of only 0.5% of all pancreatic cysts. EUS-FNA has become the mainstay for diagnosing pancreatic LECs. Given the slow growing and benign nature, conservative management and observation is adequate for pancreatic LECs with excellent long-term outcome. With increasing number of imaging ordered by clinicians, it is anticipated that there will be a greater number of incidental pancreatic LECs detected. Thus, EUS-FNA should be utilized more frequently to help distinguish benign pancreatic LECs from premalignant or malignant lesions to avoid surgery.

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Section: Discussionsupporting

confidence: 74%

A Rare Presentation of Pancreatic Lymphoepithelial Cyst: A Case Report and Review

Kim

Ramay

Richards

et al. 2020

Case Reports in Medicine

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“…It is reported to be approximately 0.5% of all pancreatic cysts. Luchtrath et al first reported lymphoepithelial cyst in 1985, and Truong et al named these lesions lymphoepithelial cysts of the pancreas in 1987 (3). The theories suggest that the formation of the cysts arises from squamous metaplasia of the pancreatic ducts or derivation from epithelial remnants in lymph nodes or possible displacement of branchial cysts during the pancreatic embryogenesis (4).…”

Section: To the Editormentioning

confidence: 99%

A cystic lesion mimicking pancreatic neoplasm

Зиновкин

Ачинович²,

Mikhailov

et al. 2021

AGEB

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A 54-year old male patient was admitted with complaints of periodical pain in the upper abdomen, CA- 19.9-51 U/ml (reference range < 37 U/ml). Blood tests were normal. However, ultrasound scan results revealed growth of a pancreatic tumor over 52×38 mm. A CT scan was performed for further characterization of the lesion. A tumor mass of 54 mm in diameter of the pancreatic body was found. There was no differentiation of lesion border with pancreas body (Fig. 1). Surgical resection was performed without preoperative biopsy following the consensus of the International Study Group of Pancreatic Surgery which states that in the presence of a solid mass suspicious for malignancy, a biopsy proof is not required before proceeding with resection (1). A soft consistence pancreas cyst with pus-like content was resected during surgical operation....

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“…Lymphoepithelial cysts (LECs) are rare benign pancreatic lesions and account for approximately less than 0.5% of all cystic manifestations of the pancreas. There is no difference in frequency of LECs related with pancreatic head, body or tail and it is not possible to differ from other types of cystic lesions, including neoplasms [ [1] , [2] , [3] ].…”

Section: Introductionmentioning

confidence: 99%

“…There is a belief of LECs predominance in middle-aged men, however several cases have been reported in women. Their presentation may be as unilocular or multilocular lesion and located in any part of the pancreas [ 1 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Lymphoepithelial cyst of uncinated process of the pancreas associated with chronic cholecystitis: Case report and review of literature

Costa¹,

Castro

Lira

et al. 2022

Annals of Medicine &Amp; Surgery

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Lymphoepithelial cyst of the pancreas: A case report and summary of imaging features of pancreatic cysts

Abstract: HighlightsA lymphoepithelial cyst (LEC) of the pancreas is a benign and rare lesion.A pancreatic LEC is difficult to be diagnosed and differentiate from the malignancy preoperatively.We summarized the imaging features of pancreatic cysts to differentiate from the malignancy.

Cited by 9 publications

References 16 publications

A Rare Presentation of Pancreatic Lymphoepithelial Cyst: A Case Report and Review

A Rare Presentation of Pancreatic Lymphoepithelial Cyst: A Case Report and Review

A cystic lesion mimicking pancreatic neoplasm

Lymphoepithelial cyst of uncinated process of the pancreas associated with chronic cholecystitis: Case report and review of literature

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