Life-Threatening Mediastinal Teratoma of Infant Requiring Emergency Surgical Removal

Background Teratoma is a tumor derived from fetal germ cells with aberrant differentiation. Case Description A 3-month-old infant with a mediastinal tumor was referred to our heart center. She presented with progressive dyspnea, cyanosis, and the need to be manually ventilated. The computed tomography scan displayed a huge tumor restricting the distal trachea including the bifurcation. An emergent operation was performed and the tumor was completely removed. Histological examination confirmed a mature teratoma. Conclusion In such life-threatening situation, the early detection and the immediate operation are very important for the management of rapidly-progressing mediastinal teratomas compressing the respiratory tract.

A giant mediastinal teratoma: From diagnosis to complete resection and restitutio ad integrum

The current report highlights the integrated work-up of an unexpected giant mediastinal teratoma in 28 years old female. A comprehensive multi-modality imaging approach was implemented in order to define the diagnosis and tailor the most appropriate surgical intervention.

Effects of Modified Subxiphoid Thoracoscopic Surgery and Traditional Surgery On Pain Mediators and Pain Stress Levels in Patients With Anterior Mediastinal Teratoma

Background To investigate the effects of modified subxiphoid thoracoscopic surgery and traditional surgery on pain mediators and pain stress levels in patients with anterior mediastinal teratoma. Method Eighty patients with anterior mediastinal teratoma who underwent surgery in our hospital from May 2019 to May 2021 were selected as the subjects of this prospective study. According to the random residue grouping method, they were divided into a control group and observation group with 40 cases each. Among them, the control group underwent traditional surgery, and the observation group underwent modified subxiphoid thoracoscopic surgery. Observe and compare the surgical indicators, pain-causing mediators, and pain stress levels of the two groups of patients. Result The intraoperative blood loss, postoperative extubation time, and total drainage volume of the observation group were significantly lower than those of the control group, while the operation time was significantly higher than that of the control group, which was statistically significant (P < 0.05). There was no statistically significant difference in the pain-causing mediators of the two groups before surgery (P > 0.05), while the NPY, PGE2 and 5-HT at 1 day after surgery were significantly different, and the observation group was better than the control group. The comparison was statistically significant. Significance (P < 0.05). There was no statistically significant difference in pain stress levels between the two groups before surgery (P > 0.05), while NO, IL-6, and IL-β 1 day after surgery were significantly different, and the observation group was better than the control group. Statistically significant (P < 0.05). Conclusion The modified subxiphoid thoracoscopic surgery has a significant effect, reduces the level of peripheral blood pain-causing factors, relieves the pain of the patient, and promotes the recovery of the patient. It provides a certain reference for the mediastinal teratoma before the clinical operation.

Not Your Average Mediastinal Mass: A Case of a Large Mediastinal Teratoma in a Patient With a History of Polio Disease

ABSTRACT Mediastinal masses can be challenging to the surgical team and anesthetic considerations vary according to the location, pathology, surgical approach, and patient comorbidities. We report the case of a 21 cm symptomatic intrathoracic teratoma in a postpartum patient with a history of poliomyelitis. Significant challenges were presented for anesthetic induction, potential extracorporeal membrane oxygenation, and the use of neuraxial pain techniques and neuromuscular blockade. This case report demonstrates techniques to safely manage a patient with a large symptomatic mediastinal mass and potential neuromuscular disease.

Fetal Presentation of Mediastinal Immature Teratoma: Ultrasound, Autopsy and Cytogenetic Findings

Teratomas are the most common congenital tumors, occurring along the midline or paraxial sites, or uncommonly, the mediastinum. Teratomas are classified as mature, containing only differentiated tissues from the three germinal layers; and immature, which also present with neuroectodermal elements, ependymal rosettes, and immature mesenchyme. Herein, we describe a new case of fetal mediastinal immature teratoma detected at 21 weeks of gestational age (wga) + 1 day with thorough cytogenetic analysis. Ultrasound (US) showed a solid and cystic mass located in the anterior mediastinum, measuring 1.8 × 1.3 cm with no signs of hydrops. At 22 wga, US showed a mass of 2.4 cm in diameter and moderate pericardial effusions. Although the prenatal risks and available therapeutic strategies were explained to the parents, they opted for termination of pregnancy. Histology showed an immature teratoma, Norris grade 2. Karyotype on the fetus and tumor exhibited a chromosomal asset of 46,XX. The fetal outcome in the case of mediastinal teratoma relies on the development of hydrops due to mass compression of vessels and heart failure. Prenatal US diagnosis and close fetal monitoring are paramount in planning adequate treatment, such as in utero surgery, ex utero intrapartum therapy (EXIT) procedure, and surgical excision after birth.

Cardiac tamponade due to ruptured cystic teratoma: report of two cases

ABSTRACT We report the rare two cases of cardiac tamponade due to ruptured cystic teratoma. In both cases, a chest computed tomography scan showed large cystic mass with large amount of pericardial effusion. Transthoracic echocardiogram revealed cardiac tamponade physiology. En bloc resection of the mass was performed and pathologic examination showed mature cystic teratoma. The postoperative course of patients was uneventful. A cystic mediastinal teratoma should be considered in the differential diagnosis of pericardial effusion.