Pancreatic endometrial cyst mimics mucinous cystic neoplasm of the pancreas

Mederos, Michael A.; Villafañe, Nicole; Dhingra, Sadhna; Farinas, Carlos; McElhany, Amy L.; Fisher, William E.; Buren, George Van

doi:10.3748/wjg.v23.i6.1113

Cited by 12 publications

(10 citation statements)

References 23 publications

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“…EUS with fine needle aspiration is a reasonable approach when imaging findings are equivocal. In a previous report (12), surgical resection was indicated due to an elevated CEA level. An elevated cyst fluid CEA level (940 ng/mL) was only reported in one other case of pancreatic endometrial cyst (10).…”

Section: Discussionmentioning

confidence: 98%

“…Extragenital manifestations of endometriosis occur in up to 40% of patients with pelvic endometriosis, which most commonly manifests in the intestines, urinary tract, abdominal wall/peritoneum, and thoracic cavity. In contrast, intrapancreatic endometrial cysts are a rare entity, with a literature review reporting 13 cases of pancreatic endometrial cysts (1-12). All patients with pancreatic endometrial cysts underwent surgical resection because malignant or premalignant lesions could not be ruled out.…”

Section: Introductionmentioning

confidence: 99%

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A Rare Case of Pancreatic Endometrial Cyst and Review of the Literature

et al. 2019

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Pancreatic cysts include a variety of benign, premalignant, and malignant lesions. Endometrial cysts in the pancreas are extremely rare lesions that are difficult to diagnose before surgery. We report the case of a 26-year-old patient with a recent episode of left abdominal pain who presented with a large cyst in the pancreatic body. Laboratory results showed white blood cell and C-reactive protein elevation, whereas the patient's tumor marker levels were within the normal range. Distal pancreatectomy with splenectomy was performed. The final histopathological examination confirmed the presence of endometriotic cysts within the pancreas. Only 13 cases of endometriotic cysts of the pancreas have been previously reported. The preoperative diagnosis is challenging, and most patients undergo pancreatic resection because of suspected neoplasms. This case report reviews previous studies and discusses the clinicopathological features, pathogenesis, and appropriate treatment for pancreatic endometrial cysts.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

A Rare Case of Pancreatic Endometrial Cyst and Review of the Literature

et al. 2019

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“… 5,9 Cystic lesions in the pancreas could be classified into benign, premalignant and malignant cysts. 10 The differential diagnosis includes post-pancreatitis pseudocysts, mucinous cystic neoplasms, serous cystadenomas or cystadenocarcinomas, cystic pancreatic adenocarcinomas, cystic neuroendocrine tumors and pseudopapillary tumors as well as ectopic tissue such as endometrial cysts. 9,10 …”

Section: Discussionmentioning

confidence: 99%

“…On cystic fluid analysis elevated amylase and lipase levels are commonly encountered with normal CEA levels. 10 …”

Section: Discussionmentioning

confidence: 99%

Pancreatic endometrioma : a rare differential diagnosis for a pseudocyst

Alnuaimi¹,

Akmal

Alduaij

et al. 2023

BJR|case reports

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Pancreatic endometriosis is extremely rare with only 14 cases reported in the medical literature and its diagnosis on radiological imaging poses a great challenge. We report a case of a 31 year old female patient with recurrent admissions for pancreatitis of unknown aetiology and no relevant past medical history. Sectional imaging showed a cystic lesion in the tail of the pancreas and the diagnosis of a post-pancreatitis pseudocyst or a less likely pre-malignant mucinous cystadenoma was considered. On post-robotic resection of the pancreatic cyst the histopathology analysis was positive for endometrial stroma. Pancreatic endometriosis although rare should be considered as a differential diagnosis for cystic lesions especially in patients who are known to have pelvic endometriosis. Nevertheless, the gold standard for the definite diagnosis of pancreatic endometriosis remains histopathological.

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“…This kind of endometriosis shows a hyperechoic small nodule ( Figure 19). Endometriosis of pancreas is associated with epigastric pain or acute pancreatitis [5,30]. In ultrasound, endometriosis of pancreas is characterized by small hypoechoic lesion (Figure 18).…”

Section: Endometriosis Of Kidneymentioning

confidence: 99%

Ultrasonography and Atypical Sites of Endometriosis

et al. 2020

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In the present pictorial we show the ultrasonographic appearances of endometriosis in atypical sites. Scar endometriosis may present as a hypoechoic solid nodule with hyperechoic spots while umbilical endometriosis may appear as solid or partially cystic areas with ill-defined margins. In the case of endometriosis of the rectus muscle, ultrasonography usually demonstrates a heterogeneous hypoechogenic formation with indistinct edges. Inguinal endometriosis is quite variable in its ultrasonographic presentation showing a completely solid mass or a mixed solid and cystic mass. The typical ultrasonographic finding associated with perineal endometriosis is the presence of a solid lesion near to the episiotomy scar. Under ultrasonography, appendiceal endometriosis is characterized by a solid lesion in the wall of the small bowel, usually well defined. Superficial hepatic endometriosis is characterized by a small hypoechoic lesion interrupting the hepatic capsula, usually hyperechoic. Ultrasound endometriosis of the pancreas is characterized by a small hypoechoic lesion while endometriosis of the kidney is characterized by a hyperechoic small nodule. Diaphragmatic endometriosis showed typically small hypoechoic lesions. Only peripheral nerves can be investigated using ultrasound, with a typical solid appearance. In conclusion, ultrasonography seems to have a fundamental role in the majority of endometriosis cases in “atypical” sites, in all the cases where “typical” clinical findings are present.

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Pancreatic endometrial cyst mimics mucinous cystic neoplasm of the pancreas

Cited by 12 publications

References 23 publications

A Rare Case of Pancreatic Endometrial Cyst and Review of the Literature

A Rare Case of Pancreatic Endometrial Cyst and Review of the Literature

Pancreatic endometrioma : a rare differential diagnosis for a pseudocyst

Ultrasonography and Atypical Sites of Endometriosis

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