Micronodular Thymoma With Lymphoid Stroma: A Trio of Cases, With Diverse-associated Histological Features

Introduction. Micronodular thymoma with lymphoid stroma (MNTLS) is a rare thymoma subtype characterized by distinctive histological appearance, unique clinical profile, and indolent course with good prognosis. In addition to its distinctive morphology, MNTLS may be associated with diverse histological features, such as thymic cysts and conventional thymoma, complicating the diagnostic picture further. Materials and methods. We report herein an account of 3 elderly patients (male—02; female—01), who presented with anterior mediastinal mass, and underwent robotic thymectomy. Microscopic examination revealed MNTLS in all 3 cases. In addition, 2 cases showed associated histological features in the form of a multilocular thymic cyst and conventional (type B2) thymoma, respectively. All 3 patients are doing well without recurrence or metastasis at 34, 28, and 19 months postsurgery. Conclusions. Awareness of this rare thymoma subtype is vital among pathologists to avoid misdiagnosis and ensure appropriate patient management. To date, only a few cases of this rare thymoma subtype have been reported in the literature, mostly as single case reports.

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Robotic Thymectomy in Anterior Mediastinal Mass: Propensity Score Matching Study With Transsternal Thymectomy

The Annals of Thoracic Surgery ◽

10.1016/j.athoracsur.2016.03.084 ◽

2016 ◽

Vol 102 (3) ◽

pp. 895-901 ◽

Cited By ~ 12

Author(s):

Chang Hyun Kang ◽

Yoohwa Hwang ◽

Hyun Joo Lee ◽

In Kyu Park ◽

Young Tae Kim

Keyword(s):

Propensity Score ◽

Propensity Score Matching ◽

Mediastinal Mass ◽

Anterior Mediastinal Mass ◽

Robotic Thymectomy

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Abstract #806955: Thymic Hyperplasia Presenting as Anterior Mediastinal Mass in a Patient with Graves’ Disease

Endocrine Practice ◽

10.1016/s1530-891x(20)39762-7 ◽

2020 ◽

Vol 26 ◽

pp. 293-294

Author(s):

Marie Krielle Pantino

Keyword(s):

Mediastinal Mass ◽

Thymic Hyperplasia ◽

Anterior Mediastinal Mass ◽

Graves Disease

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Anterior Mediastinal Paraganglioma Mimicking Thymoma

The Heart Surgery Forum ◽

10.1532/hsf98.20111173 ◽

2012 ◽

Vol 15 (3) ◽

pp. 170

Author(s):

Hee Moon Lee ◽

Dong Seop Jeong ◽

Pyo Won Park ◽

Wook Sung Kim ◽

Kiick Sung ◽

...

Keyword(s):

Mediastinal Mass ◽

Aortic Wall ◽

Anterior Wall ◽

Ascending Aorta ◽

Anterior Mediastinal Mass ◽

Arterial Reconstruction ◽

Ct Evaluation ◽

One Year ◽

Mediastinal Paraganglioma

A 54-year-old man was referred to our institution with hemoptysis and hoarseness of 1 year's duration. A computed tomography (CT) scan showed an anterior mediastinal mass (2.5 cm x 1.0 cm), which was diagnosed as thymoma. The tumor was resected under a sternotomy. The tumor had invaded the anterior wall of the ascending aorta. With the patient under cardiopulmonary bypass, the aortic wall invaded by the mass was resected, and arterial reconstruction was performed with patch material. The tumor was revealed to be a tumor of neuronal origin. The patient's postoperative course was uneventful. The patient was discharged on postoperative day 9. One year after the operation, a follow-up chest CT evaluation showed no specific complications or recurrence.

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A Case of Malignant Melanoma Arising in Mediastinal Malignant Teratoma

Case Reports in Pediatrics ◽

10.1155/2018/1306824 ◽

2018 ◽

Vol 2018 ◽

pp. 1-5

Author(s):

Ikuma Nozaki ◽

Yumi Tone ◽

Junko Yamanaka ◽

Hideko Uryu ◽

Yuko Shimizu-Motohashi ◽

...

Keyword(s):

Malignant Melanoma ◽

Malignant Transformation ◽

Poor Prognosis ◽

Mediastinal Mass ◽

Bone Biopsy ◽

Systematic Evaluation ◽

Anterior Mediastinal Mass ◽

Malignant Teratoma ◽

Experienced Pain

We report about a 14-year-old boy who presented with an anterior mediastinal mass that was diagnosed as malignant teratoma. Surgical resection was performed along with pre- and postoperative chemotherapy. Although elevated alpha-fetoprotein became negative, he experienced pain in his right hip joint 3 months after resection. Systematic evaluation revealed multiple locations of metastasis, and the pathological diagnosis based on bone biopsy was malignant melanoma originating from malignant teratoma, which rapidly progressed. He died 15 months after diagnosis of the original malignant teratoma. Diagnosing and treating malignant transformation of teratoma, including malignant melanoma, is difficult because it is very rare. To our knowledge, this is the second reported case of malignant melanoma arising from a mediastinum malignant teratoma, with both cases having a poor prognosis. In addition to the follow-up of tumor markers, systematic evaluation, including imaging, should be considered even after remission to monitor malignant transformation of teratoma. We expect to establish a successful therapy and improve mortality rate after more such cases are accumulated.

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Ovarian mature cystic teratoma with malignant transformation: two case reports

Journal of Medical Case Reports ◽

10.1186/s13256-020-02594-4 ◽

2021 ◽

Vol 15 (1) ◽

Author(s):

Afsaneh Tehranian ◽

Akram Ghahghaei-Nezamabadi ◽

Akram Seifollahi ◽

Sara Kasraei ◽

Hamideh Dehghani-Nejad ◽

...

Keyword(s):

Malignant Transformation ◽

Case Reports ◽

Cystic Teratoma ◽

Good Prognosis ◽

Mature Cystic Teratoma ◽

Treatment Protocols ◽

Large Size ◽

Stage Ia ◽

Loss Of Appetite ◽

Case Number

Abstract Background Mature Cystic Teratoma (MCT) is a benign tumor that can lead to malignant transformation (MT) in 1–3% of cases. Management of MT is a big challenge for gynecologic oncologists due to the lack of specific diagnostic and treatment protocols. Case presentation We reported two Iranian cases of MT of MCT with two different stages and prognosis. Our both cases presented the same symptoms, including chronic abdominal pain and distention, loss of appetite, and weight loss. In case number 1, despite the large size of the tumor, the disease was at stage Ia and had a good prognosis; while, case number 2 was at stage IIIc of the disease with a poor prognosis. Conclusion The stage of the disease is the most important prognostic factor, and early diagnosis and treatment are very critical for better survival.

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Post-Infectious Guillain–Barré Syndrome Related to SARS-CoV-2 Infection: A Systematic Review

Life ◽

10.3390/life11020167 ◽

2021 ◽

Vol 11 (2) ◽

pp. 167

Author(s):

Pasquale Sansone ◽

Luca Gregorio Giaccari ◽

Caterina Aurilio ◽

Francesco Coppolino ◽

Valentina Esposito ◽

...

Keyword(s):

Single Case ◽

Case Reports ◽

Case Series ◽

Guillain Barre Syndrome ◽

Response To Treatment ◽

Comprehensive Overview ◽

Fisher Syndrome ◽

Immunomodulating Therapy ◽

Guillain Barré Syndrome ◽

Guillain Barré

Background. Guillain-Barré syndrome (GBS) is the most common cause of flaccid paralysis, with about 100,000 people developing the disorder every year worldwide. Recently, the incidence of GBS has increased during the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) epidemics. We reviewed the literature to give a comprehensive overview of the demographic characteristics, clinical features, diagnostic investigations, and outcome of SARS-CoV-2-related GBS patients. Methods. Embase, MEDLINE, Google Scholar, and Cochrane Central Trials Register were systematically searched on 24 September 2020 for studies reporting on GBS secondary to COVID-19. Results. We identified 63 articles; we included 32 studies in our review. A total of 41 GBS cases with a confirmed or probable COVID-19 infection were reported: 26 of them were single case reports and 6 case series. Published studies on SARS-CoV-2-related GBS typically report a classic sensorimotor type of GBS often with a demyelinating electrophysiological subtype. Miller Fisher syndrome was reported in a quarter of the cases. In 78.1% of the cases, the response to immunomodulating therapy is favourable. The disease course is frequently severe and about one-third of the patients with SARS-CoV-2-associated GBS requires mechanical ventilation and Intensive Care Unit (ICU) admission. Rarely the outcome is poor or even fatal (10.8% of the cases). Conclusion. Clinical presentation, course, response to treatment, and outcome are similar in SARS-CoV-2-associated GBS and GBS due to other triggers.

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Analysis of Clinical, Imaging, and Pathologic Features of 36 Patients with Primary Intraspinal Primitive Neuroectodermal Tumors: A Case Series and Literature Review

Journal of Neurological Surgery Part A Central European Neurosurgery ◽

10.1055/s-0041-1723810 ◽

2021 ◽

Author(s):

Xuefeng Wei ◽

Xu Zhang ◽

Zimu Song ◽

Feng Wang

Keyword(s):

Literature Review ◽

Single Case ◽

Case Reports ◽

Case Series ◽

Subtotal Resection ◽

Study Cohort ◽

Primitive Neuroectodermal Tumors ◽

Pathologic Features ◽

Neuroectodermal Tumors ◽

The Mean

Abstract Background and Study Aims Primary intraspinal primitive neuroectodermal tumors (PNETs) account for ∼0.4% of all intraspinal tumors, but information about these tumors in the medical literature is limited to single case reports. We report four cases of primary intraspinal PNETs and present a systematic literature review of the reported cases. Materials and Methods We retrospectively reviewed and analyzed the clinical data of 4 patients with primary intraspinal PNETs who underwent neurosurgical treatment at our clinic between January 2013 and January 2020, and of 32 cases reported in the literature. Results The female-to-male ratio was 2.6:1. The mean patient age was 21.42 ± 15.76 years (range: 1–60 years), and patients <36 years of age accounted for 83.30% of the study cohort. Progressive limb weakness and numbness were the chief symptoms (accounting for ∼55.6%). The mean complaint duration was 0.89 ± 0.66 months for males and 2.72 ± 3.82 months for females (p = 0.028). Epidural (41.7%) was the most common site, and thoracic (47.3%) was the most frequent location. Most PNETs were peripheral, and magnetic resonance imaging (MRI) appearance was isointense or mildly hypointense on T1-weighted images and hyperintense on T2-weighted images. Homogeneous contrast enhancement was observed. The 1-year survival rate of patients who underwent chemoradiation after total or subtotal lesion resection was better compared with patients who did not undergo chemotherapy, radiotherapy, or total or subtotal resection. The modality of treatment was associated with survival time (p = 0.007). Conclusion Primary intraspinal PNETs mainly occur in young people with a female preponderance. In patients with a rapid loss of lower limb muscle strength and large intraspinal lesions on MRI, PNETs should be considered. Surgical resection and adjuvant radio chemotherapy are key prognostic factors.

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Transient maintenance of tracheal patency upon the insertion of a flexible bronchoscope in a patient with an anterior mediastinal mass: a case report

JA Clinical Reports ◽

10.1186/s40981-021-00442-y ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

Takayuki Hasegawa ◽

Shinju Obara ◽

Rieko Oishi ◽

Satsuki Shirota ◽

Jun Honda ◽

...

Keyword(s):

General Anesthesia ◽

Mediastinal Mass ◽

Balloon Dilation ◽

Maximum Flow ◽

Anterior Mediastinal Mass ◽

Positive Pressure ◽

Anesthesia Induction ◽

Flexible Bronchoscope ◽

Case Presentation ◽

Tracheal Collapse

Abstract Background Patients with an anterior mediastinal mass are at risk of perioperative respiratory collapse. Case presentation A 74-year-old woman with a large anterior mediastinal mass that led to partial tracheal collapse (shortest diameter, 1.3 mm) was scheduled for tracheobronchial balloon dilation and stent placement under general anesthesia. Although veno-venous extracorporeal membrane oxygenation (V-V ECMO) had been established, maximum flow was limited to 1.6 L/min, and general anesthesia induction was followed by hypoxia probably due to inadequate ventilation. A flexible bronchoscope was inserted through the tracheal lumen that was being compressed by the anterior mass; this not only increased tracheal patency but also enabled positive pressure ventilation and resulted in recovery from hypoxia. Scheduled procedures were successfully performed without complications. Conclusion We describe a case wherein tracheal patency was transiently maintained by inserting a flexible bronchoscope in a patient with an anterior mediastinal mass.

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A Systematic Review on Airbag-Induced Burns

Journal of Burn Care & Research ◽

10.1093/jbcr/iraa186 ◽

2020 ◽

Author(s):

Sarah P Erpenbeck ◽

Eva Roy ◽

Jenny A Ziembicki ◽

Francesco M Egro

Keyword(s):

Systematic Review ◽

Case Reports ◽

Good Prognosis ◽

Chemical Burns ◽

Automobile Crashes ◽

Chemical Mechanisms ◽

Number Of Patients ◽

Common Risk Factors ◽

The Common ◽

Ocular Burns

Abstract Airbags significantly reduce fatalities and injuries in automobile crashes, but they have been found to be associated with burns. Specifically, airbags can cause burns through thermal or chemical mechanisms and commonly affect the arms, hands, face, and eyes. While most airbag-induced burns are minor, some may cause unfavorable outcomes. Our study aimed to systematically review airbag-induced burns to assess etiology, type, and treatment of these injuries. A systematic review of case reports pertaining to airbag-induced cutaneous and ocular burns was conducted. Data reviewed included type/location of burns, severity of burn, total number of patients, treatment, complications, and outcome after treatment. We identified 21 case reports that met our inclusion criteria with a total of 24 patients reported in the studies. Of the studies identified, 38% were chemical burns and 25% were thermal burns. Most commonly the upper extremities were burned in 42% of cases, followed by eyes (25%) and face (21%). Most burns identified were superficial partial thickness (58%). Treatment outcomes were good for cutaneous burns, with 95% healing without complication. However, ocular injuries lead to permanent impaired eye function in 71% of cases. In our systematic review, we highlighted the common risk factors, prognosis, and treatment for thermal, chemical, and ocular burns. Airbag-induced burns have a relatively good prognosis but must be recognized and treated immediately to reduce the risk of serious sequelae.

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