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 Table of Contents  
Year : 2021  |  Volume : 10  |  Issue : 6  |  Page : 472-473

Surprising stomach cysts

Department of Gastroenterology, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands

Date of Submission15-Oct-2020
Date of Acceptance09-Dec-2020
Date of Web Publication09-Feb-2021

Correspondence Address:
Dr. Liesbeth M Kager
Department of Gastroenterology, Noordwest Ziekenhuisgroep, Wilhelminalaan 12, 1815 JD, Alkmaar
The Netherlands
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/EUS-D-20-00236

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How to cite this article:
Anjie SI, Meijer B, Kager LM. Surprising stomach cysts. Endosc Ultrasound 2021;10:472-3

How to cite this URL:
Anjie SI, Meijer B, Kager LM. Surprising stomach cysts. Endosc Ultrasound [serial online] 2021 [cited 2022 Jan 23];10:472-3. Available from: http://www.eusjournal.com/text.asp?2021/10/6/472/308932

A 78-year-old male was referred to our hospital with loss of appetite and bloating. Esophago-gastro-duodenoscopy showed aspecific inflammation of the cardiac mucosa with “snake-skin” aspect, with a normal pit pattern [Figure 1]a and [Figure 1]b. Histopathologic investigation revealed reactive changes and slight chronic inflammation without dysplasia. Staining for Helicobacter pylori was negative. Six months later, the patient presented with unintended weight loss and fatigue. Thoraco-abdominal computed tomography showed a submucosal lobulated mass surrounding the cardia and gastric fundus extending toward the spleen [Figure 1]c without evidence of lymph node involvement. Subsequent fluorodeoxyglucose positron emission tomography (FDG) demonstrated significant FDG uptake neither in the cardiac mass nor in the surrounding lymph nodes. Final evaluation with EUS showed a large circular multicystic mass around the cardia of a nonwell-defined origin, being either the muscular layer or the serosa [Figure 1]d. Fine-needle aspiration (FNA) with a 19G needle (EZShot Olympus®, 19G EZ Shot 3 Plus Single-Use Aspiration Needle, Olympus Corporation, Shinjuku-ku, Tokyo, Japan) was performed during EUS. Cytopathological analysis showed medium-sized atypical cells with signet ring cells staining positive for CK7, CK20, CKPAN, Ki67, and p53 [Figure 2]a, [Figure 2]b, [Figure 2]c, [Figure 2]d, fitting with the diagnosis of “non-small-cell carcinoma.” Additionally, a carcinoembryonic antigen (CEA) concentration of 65,000 μg/L was measured in the cystic fluid. Serum values for CA-19.9 and CEA were 160 kU/L and 2.6 μg/L, respectively. Altogether, the diagnosis of “diffuse cystic malformation (DCM) in the stomach with T4 locally advanced diffuse-type gastric carcinoma” was made. The patient was treated with palliative chemotherapy as the tumor was considered unresectable.
Figure 1: (a) Endoscopic image of the gastric cardia, showing focal inflamed mucosa and a 'snake-skin' aspect. (b) Narrow-band imaging (NBI) of the gastric cardia. (c) Computed Tomography (CT) image, transversal plane, showing a multilobular mass located between the stomach and spleen. (d) Endoscopic ultrasound showing a multilobular cystic neoplasm around the gastric cardia.

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Figure 2: (a) EUS showing a heterogenous mass located around the gastric cardia. (b) EUS-FNA. Cytopathological analysis showed medium-sized atypical cells with signet ring cells (c) staining positive for CK20 (d).

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DCM is defined as a gastric abnormality characterized by diffusely distributing, nonneoplastic glandular cysts in the submucosal layer.[1] While diagnosing DCM using conventional endoscopy is often troublesome because of its variety of appearances, EUS-FNA is a very reliable, sensitive method for diagnosing DCM. The incidence of DCM is very low, so it is difficult to unravel an exact histopathological mechanism. As a consequence, it is yet unknown whether DCM precedes a cancerous lesion or occurs in malignancies as a result of the tumor itself.[2] We strongly suggest to aim for evaluation with EUS-FNA, as a tissue diagnosis to prove or rule out a gastric malignancy in patients with DCM is very important.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form the patient has given his consent for his images and other clinical information to be reported in the journal. The patient understands that his name and initials will not be published and due efforts will be made to conceal his identity, but anonymity cannot be guaranteed.

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Conflicts of interest

There are no conflicts of interest.

  References Top

Hizawa K, Suekane H, Kawasaki M, et al. Diffuse cystic malformation and neoplasia-associated cystic formation in the stomach. Endosonographic features and diagnosis of tumor depth. J Clin Gastroenterol 1997;25:634-9.  Back to cited text no. 1
Zhu FG, Deng XJ, Cheng NJ. Intramucosal cysts in gastric mucosa adjacent to carcinoma and peptic ulcer: A histochemical study. Histopathology 1987;11:631-8.  Back to cited text no. 2


  [Figure 1], [Figure 2]


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