Congenital thymic cyst: prenatal sonographic and postnatal magnetic resonance findings.

Campos, E. de Miguel; Casanova, A.; Urbano, J.; Carrasco, J. Delgado

doi:10.7863/ultra.16.5.365

Cited by 6 publications

(13 citation statements)

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“…8,15 Fetal mediastinal cystic lesions are rarely reported. de Miguel Campos et al 4 reported an intrathoracic cyst detected prenatally in which precise diagnosis was not possible. Postnatal imaging with sonography and computed tomography suggested a possible thymic origin, and magnetic resonance imaging allowed the specific diagnosis.…”

Section: Discussionmentioning

confidence: 99%

“…However, despite optimal imaging, the origin of the cyst may be difficult to establish, particularly when very large. 4,7,10 Resection of thymic cysts is optimal for prevention or treatment of complications and because neoplasia cannot be definitively excluded. 8,15 Fetal mediastinal cystic lesions are rarely reported.…”

Section: Discussionmentioning

confidence: 99%

“…Postnatal imaging with sonography and computed tomography suggested a possible thymic origin, and magnetic resonance imaging allowed the specific diagnosis. 4 Prenatally described mediastinal lesions include bronchogenic cysts, esophageal duplication cysts, neurenteric cysts, congenital hiatal hernias, cystic neuroblastoma, cystic teratoma, pericardial cysts, and cystic lymphangioma. 16 The differential diagnosis of anterior mediastinal fetal cystic masses additionally includes cystic lymphangioma and thyroid and parathyroid cysts.…”

Section: Discussionmentioning

confidence: 99%

“…7,[9][10][11] However, most congenital cysts are small. 8 Postnatally, sonography, 7,12-15 computed tomography, [7][8][9]15 and magnetic resonance imaging 4 may play a role in diagnosis and identification of the thymic origin. However, despite optimal imaging, the origin of the cyst may be difficult to establish, particularly when very large.…”

Section: Discussionmentioning

confidence: 99%

“…Thymic cysts have been described in the neonatal and pediatric literature, and, to our knowledge, there is a single report of a prenatally detected intrathoracic cyst in which a specific prenatal diagnosis and identification of the thymic origin was not possible. 4 We report a case of a thymic cyst first detected in a fetus at 22 weeks' gestation, which showed spontaneous resolution in the postnatal period.Received September 22, 2003, …”

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Fetal Thymic Cyst

McEwing

Chaoui

2005

Journal of Ultrasound in Medicine

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he thymus, a lymphoepithelial gland with vital functions in T-cell lymphopoiesis, 1 can be shown in most fetuses on routine prenatal sonography in the superior mediastinal plane used to examine the great vessels (3-vessel view).2,3 The gland lies immediately posterior to the sternum and anterior to the great vessels. Thymic cysts have been described in the neonatal and pediatric literature, and, to our knowledge, there is a single report of a prenatally detected intrathoracic cyst in which a specific prenatal diagnosis and identification of the thymic origin was not possible. 4 We report a case of a thymic cyst first detected in a fetus at 22 weeks' gestation, which showed spontaneous resolution in the postnatal period.Received September 22, 2003, Case ReportA 36-year-old patient, gravida 2, para 1, was referred for routine sonography at 22 weeks' gestation. She had a previous healthy child, and the course of this pregnancy so far had been uneventful. Biometry revealed an appropriately grown fetus with no markers of aneuploidy. Targeted fetal echocardiography showed normal cardiac anatomic characteristics. Two hypoechoic cysts measuring 8 and 5.5 mm maximally were detected in the transverse view of the superior mediastinum, lying ventral to the great vessels in the region of the fetal thymus. The cysts did not show any mass effect on the great vessels or trachea and did not extend out of the mediastinum into the cervical region. The patient was counseled about the rarity of these findings and the lack of involvement of adjacent structures. She elected for expectant management and declined an invasive procedure. There were no additional findings. Follow-up sonograms were performed at 25, 28, and 34 weeks' gestation and showed a relative decrease in size of the cysts (6 and 3 mm in diameter; Figures 1 and 2).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Fetal Thymic Cyst

McEwing

Chaoui

2005

Journal of Ultrasound in Medicine

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Prenatal ultrasonic features of a mediastinal teratoma: A case report and literature review

Tian

et al. 2022

J of Clinical Ultrasound

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Fetal mediastinal teratomas represent only 10% of congenital teratomas in children and 2.6% of all mediastinal masses in children. Teratomas have multifactorial etiology, such as chromosomal abnormalities. Fetal mediastinal teratomas are rare. Mediastinal teratomas can cause hydrops fetalis, fetal demise, and neonatal respiratory distress; therefore, accurate perinatal management and interventions are very important. We describe a case of fetal mediastinal teratoma wherein the cystic fluid in the fetal tumor was aspirated and confirmed by surgical pathology after birth at the authors' center. The teratoma in this case was characterized by a large single cystic mass with clear borders in the anterosuperior mediastinum, which grew rapidly and was closely related to the thymus. The infant was healthy at birth, and the tumor was surgically removed the age of 1 year. The postoperative course was uneventful, and the patient was in good health 6 years postoperatively. This case and literature review suggests that ultrasound examination can accurately diagnose fetal mediastinal teratomas, which is beneficial to provide an accurate basis for fetal prenatal intervention and treatment. Additionally, an important ultrasound feature of a fetal unicystic mediastinal teratoma is a saddle‐shaped mass with clear boundaries, which provided an accurate reference for the diagnosis of a fetal cystic mediastinal teratoma by prenatal ultrasonography.

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Etiology and outcome of prenatally detected paracardial cystic lesions: a case series and review of the literature

Bernasconi

Golding

et al. 2007

Ultrasound in Obstet & Gyne

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Fetal echocardiography enables early detection of paracardial cyst. Pericardial cysts disappeared spontaneously during the course of gestation without signs of fetal cardiac compromise, suggesting a benign prognosis. Imaging by magnetic resonance and computerized tomography were particularly useful to clarify the etiology, structure and extent of those cysts that had not resolved by the time of birth. Published by John Wiley & Sons, Ltd.

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Congenital thymic cyst: prenatal sonographic and postnatal magnetic resonance findings.

Cited by 6 publications

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Fetal Thymic Cyst

Fetal Thymic Cyst

Prenatal ultrasonic features of a mediastinal teratoma: A case report and literature review

Etiology and outcome of prenatally detected paracardial cystic lesions: a case series and review of the literature

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