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Images in clinical practice
Daughter cyst sign in isolated peritoneal hydatid disease.
Omrani Sahir1,2, Ferjaoui Wael1,2,*, Hajri Mohamed 1,2, Talbi Ghofrane1,2, Bayar Rached1,2, Khalfallah Mohamed Tahar1,2.
1:Department of General surgery, Mongi Slim Hospital, Tunis Tunisia
2:College of medicine Tunis Tunisia.
*Corresponding author
Correspondence to: farjaouiwael4@gmail.com
Publication Data: Submitted: February 2,2020 Accepted: April 29,2020 Online: June 30,2020
This article was subject to full peer-review.
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Daughter cyst sign
Abdominal CT scan features of exogenous rounded cystic lesion arising from the mother cyst
Daughter cyst sign in isolated peritoneal hydatid disease
Observation
A 35-year-old patient with no pertinent past medical history presented with recurrent abdominal pain of three months duration. There were no associated symptoms. The abdominal ultrasound showed a homogenous, well-circumscribed cystic mass in the pelvic cavity. The immunology of cystic echinococcosis was negative. Abdomen and pelvis CT scan revealed a pelvic cyst measuring six centimeters in diameter. The cyst wall appeared bumpy and communicated with a second adjacent small rounded lesion corresponding to a daughter cyst (figure). The rest of the imaging findings were unremarkable. The diagnosis of isolated peritoneal hydatid cyst was made. The patient underwent a cystectomy with uneventful postoperative course.
Daughter cysts formation is common in the parasite evolution. They are usually endogenous [1]. In some cases, the daughter cysts are progressively pushed outwards and develop as exogenous extensions [2]. The daughter cyst sign is pathognomonic for hydatid disease and is usually seen in liver hydatid cysts. Daughter cysts are associated with a high risk of recurrence after surgery. Radical excision is to be preferred in these cases [3].
Conflict of Interest: None
References
[1]Dougaz MW, Cherni S, Nouira R. Daughter cyst sign in liver hydatid cyst. Journal of Parasitic Diseases. 2019;43:737-8.
[2]Malik A, Chandra R, Prasad R, Khanna G, Thukral BB. Imaging appearances of atypical hydatid cysts. Indian J Radiol Imaging. 2016;26:33-9.
[3]Lee H-J, Woo S-K, Kim J-S, Suh S-J. “Daughter Cyst” Sign. American Journal of Roentgenology.2000;174:1013‑15.
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Citation: Omrani S, Ferjaoui W, Hajri M, Talbi Gh, Bayar R, khalfallah MT. Daughter cyst sign in isolated peritoneal hydatid
disease.Jr.med.res.2020;3(1): 29-30. Omrani et al © All rights are reserved.
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