Benign cervical schwannoma with tracheal invasion

ABSTRACT Schwannomas commonly develop in the cervical region, 25% - 45% of cases are diagnosed in this anatomical region. Tracheal neurogenic tumors are exceedingly rare and can be misdiagnosed as invasive thyroid carcinomas or other infiltrating malignancies when present at the level of the thyroid gland. Here, we present a case of synchronous benign cervical schwannoma with tracheal invasion and papillary thyroid carcinoma in a patient who was initially hospitalized for COVID-19. The patient presented with dyspnea that was later found to be caused by tracheal extension of a cervical tumor. Surgical excision was performed, and the surgical team proceeded with segmental tracheal resection, removal of the cervical mass, and total thyroidectomy. The specimen was sent for pathological analysis, which revealed synchronous findings of a benign cervical schwannoma with tracheal invasion and papillary thyroid carcinoma. The literature on this subject, together with the present case report, suggests that neurogenic tumors should be included in the differential diagnosis of obstructing tracheal cervical masses. Surgical excision is the first-line of treatment for benign cervical schwannomas.

Causa inusual de obstrucción traqueal: linfoma de células B no Hodgkin

Las neoplasias de la tráquea son poco comunes, siendo más infrecuente aún el linfoma de células B no Hodgkin a este nivel. La presentación clínica de esta entidad es muy variable y sus síntomas son muy inespecíficos, simulando varias enfermedades, generando así un diagnóstico tardío. Actualmente se dispone de varias ayudas diagnósticas que permiten descartar otras patologías y confirmar la neoplasia traqueal, además la biopsia es fundamental para llegar al diagnóstico final y así instaurar el manejo en estadios tempranos, para impactar en la morbimortalidad. A continuación presentamos el caso de una paciente con linfoma de células B no Hodgkin como causa de obstrucción traqueal.

Tracheal neoplasms are uncommon, with non-Hodgkin B-cell lymphoma being even rarer at this level. The clinical presentation of this entity is highly variable and its symptoms are very non-specific, simulating several diseases, thus generating a late diagnosis. Currently, there are several diagnostic aids that allow us to rule out other pathologies and confirm tracheal neoplasia, in addition, biopsy is essential to reach the final diagnosis and thus establish management in early stages to impact morbidity and mortality. We present the case of a patient with non-Hodgkin's B-cell lymphoma as a cause of tracheal obstruction.

Presentación atípica de tumor glómico en vía aérea: reporte de caso y revisión de literatura / Atypical presentation of glomus tumor in the airway: Case report and literature review

Introducción. Los tumores glómicos provienen de los cuerpos glómicos, que son estructuras con función de termorregulación y se encuentran distribuidas por todo el cuerpo humano, principalmente a nivel distal de las extremidades, donde es común encontrar lesiones características, aunque hay reportes de casos que se presentaron como neoformación en localizaciones más inusuales. Su etiología aun es desconocida. No se sospechan en muchos pacientes y el diagnostico se realiza de manera incidental, por estudios imagenológicos o anatomopatológicos. Caso clínico. Paciente femenina de 66 años, con presencia de tumor glómico en vía aérea, diagnosticado por histopatología e inmunohistoquímica, que fue sometido a resección quirúrgica, con buena evolución posterior. Discusión. Esta presentación atípica de tumor glómico en vía aérea se manifiesta principalmente con síntomas y signos relacionados con obstrucción de la vía aérea. El manejo oportuno es primordial y el diagnóstico definitivo es por histopatología e inmunohistoquímica, donde se observan las características de las células glómicas, estructuras vasculares, músculo liso y la positividad en la inmunotinción de marcadores como actina del músculo liso, CD34, y actina específica del músculo, entre otras. Conclusión. Los tumores glómicos son neoformaciones benignas raras, con presentación más común en zonas distales. Su aparición depende de factores intrínsecos y extrínsecos de los pacientes. Su tasa de recidiva es muy baja en comparación de otros tumores

Introduction. Glomus tumors originate from glomus bodies, which are structures with thermoregulatory function and are distributed throughout the human body, mainly at the distal level of the extremities where it is common to find these characteristic lesions. Although, there are case reports of neoformation presentations with more unusual locations. Their etiology is still unknown. Many times when there is evidence of lesions in atypical areas they are not suspected in many patients and the diagnosis is made incidentally by imaging and/or anatomopathological studies. Clinical case. A 66-year-old female patient with the presence of a glomus tumor in the airway diagnosed by histopathology and immunohistochemistry, underwent surgical resection and presented good evolution after surgery. Discussion. This atypical presentation of glomus tumor in the airway presents mainly with symptoms and signs related to airway obstruction. Timely management is paramount in these patients, and the definitive diagnosis is by histopathology and immunohistochemistry where the presence of the characteristics of glomus cells, vascular structures, smooth muscle and immunostaining positivity towards some markers such as smooth muscle actin, CD34, muscle specific actin, among others, are seen. Conclusion. This type of tumors are rare benign neoformations, with common presentations in distal areas. Their appearance depends on intrinsic and extrinsic factors of the patients and their recurrence rate is very low compared to other tumors

Glomus tumor located in trachea: two cases reports / 中国医师杂志

Objective:To investigate the clinicopathological features and computed tomography (CT) findings of tracheal glomus tumor (GT) in order to improve the understanding and diagnosis of tracheal GT.Methods:The clinical and CT imaging data of 2 patients with tracheal GT diagnosed in the First Affiliated Hospital of Zhengzhou University were analyzed retrospectively. The image characteristics based on previous reports were analyzed.Results:The clinical manifestations of trachea GT were dyspnea, chest tightness, hemoptysis, etc., which were easy to be misdiagnosed. The CT manifestations were spherical or nodular protrusions in the trachea cavity, with uneven edges, which can be lobulated. Cystic changes can be seen in the focus. After enhancement, it showed progressive filling and obvious enhancement, without deep infiltration and distant metastasis.Conclusions:Chest CT can accurately localize tracheal GT, provide its morphological size, blood supply, growth characteristics and other characteristics, accurately display the overall morphology of the lesion, and provide some help for the development of the surgical plan, and its definitive diagnosis still relies on pathological examination.

Radioterapia definitiva en el carcinoma adenoide quístico de la tráquea. A propósito de un caso / Definitive radiotherapy in adenoid cystic carcinoma of the trachea. A case report

Los carcinomas adenoides quísticos son tumores extremadamente raros, para los cuales la cirugía es el pilar terapéutico; sin embargo, el abordaje quirúrgico puede estar contraindicado en función del tamaño tumoral, el compromiso de estructuras adyacentes o enfermedades concurrentes. En estos casos, la radioterapia externa definitiva puede ofrecer un adecuado control tumoral y alivio de síntomas. El presente reporte de caso describe un paciente con un tumor irregular que rodea la circunferencia de la tráquea, el cual genera disminución de la luz traqueal, en quién se decidió realizar una reducción de volumen de la lesión tumoral con argón plasma, seguido de colocación de un stent en Y (traqueal, bronquial izquierdo y bronquial derecho) y, posteriormente, realizar un tratamiento definitivo con radioterapia externa con técnica de intensidad modulada a dosis de 60 Gy en fraccionamiento de 2 Gy. Tres meses después del tratamiento, el paciente se presenta sin evidencia radiológica de adenopatías en la base del cuello o axila, con un stent endotraqueal permeable, sin estenosis y con una disminución del volumen tumoral, por lo que fue posible el retiro del stent.

Adenoid cystic carcinomas are extremely rare tumors, for which surgery is the mainstay of therapy; however, the surgical approach may be contradictory depending on tumor size, involvement of adjacent structures or concurrent diseases. In these cases, definitive external beam radiation therapy can offer adequate tumor control and symptom relief. The present case report describes a patient with an irregular tumor that surrounds the circumference of the trachea, causing a decrease in the tracheal lumen, in whom it was decided to perform a volume reduction of tumor with argon plasma, followed by placement of a Y-stent (tracheal, left bronchial and right bronchial), and subsequent definitive treatment with external radiotherapy with intensity modulated technique at doses of 60 Gy in 2 Gy fractionation. Three months after treatment, the patient presents without radiological evidence of lymphadenopathy at the base of the neck or axilla, with a patent endotracheal stent, with no stenosis and a decrease in tumor volume, for which the removal of the Stent was feasilble.

The role of endoscopic ultrasound in the staging of tracheal neoplasm: a brief review

SUMMARY Our case report shows the complexity of dealing with tracheal tumors, highlighting the importance of the method used for staging. In this report, endoscopic ultrasound (EUS) was crucial to identify the involvement of the esophageal muscular propria in a tracheal tumor and change the surgical planning of the case. Staging this kind of tumor represents a challenge for physicians. There is no evidence in the literature on which methods represent the gold standard for T staging.

RESUMO Neste relato de caso mostramos a complexidade em lidar com tumores traqueais, destacando a importância do método usado para estadiamento. Neste relato, a ecoendoscopia (EUS) foi fundamental para identificar o envolvimento da camada muscular própria esofágica por um tumor traqueal e alterar o planejamento cirúrgico do caso. O estadiamento desse tipo de tumor representa um desafio para os médicos. Não há evidências na literatura sobre quais métodos representam o padrão ouro para o estadiamento T.

Tracheal pleomorphic adenoma with coexisting pulmonary tuberculoma / 영남의대학술지

Tracheal tumors are rare and difficult to diagnose. Moreover, delays in diagnosis are very common because the symptoms are nonspecific. As a result, tracheal tumors are commonly mistreated as chronic obstructive pulmonary disease or bronchial asthma. We report a case of a 49-year-old male who presented with a 3-month history of dyspnea and cough. Chest computed tomography scan showed a 1.5×1.3 cm homogenous tumor originating from the right lateral wall of the tracheobronchial angle into the tracheal lumen as well as a 0.5×0.4 cm round nodular lesion at the right upper lobe with multiple mediastinal lymph nodes enlargement. Bronchoscopic findings revealed a broad-based, polypoid lesion nearly obstructing the airway of the right main bronchus. The patient was diagnosed with pleomorphic adenoma which is the most common benign tumor of the salivary glands, but rarely appears in the trachea. Upon surgery, tracheal pleomorphic adenoma and co-existing active pulmonary tuberculoma that had been mistreated as bronchial asthma over 3 months was revealed. Following surgery, the patient underwent anti-tuberculosis treatment. No recurrence has been detected in the 3 years since treatment and the patient is now asymptomatic.

Carcinoma papilar primario derivado de tejido tiroideo ectópico en tráquea / Primary papillary carcinoma originating in tracheal ectopic thyroid tissue

El carcinoma tiroideo originado en tejido tiroideo ectópico es una entidad clínica poco común; son lesiones que se presentan generalmente como una masa en la línea media, que se desarrolla a partir de un remanente del conducto tirogloso. El hallazgo de una lesión maligna en un verdadero tejido tiroideo aberrante es inusual. Ante su poca frecuencia, se presenta el caso de una paciente en quien se diagnosticó un carcinoma papilar primario derivado de tejido tiroideo ectópico en tráquea.

Thyroid carcinoma arising from an ectopic thyroid tissue is an uncommon clinical entity. These lesions usually present as a mass in the midline that develops from a thyroglossal duct remainder. The finding of a malignant lesion in true aberrant thyroid tissue is unusual. Given the strangeness of this condition we present the case of a patient in which the diagnosis conducted a primary papillary carcinoma arising from ectopic thyroid tissue in the trachea.

Manifestations of18F-FDG PET/CT in Primary Tracheal Cancer / 中国医学影像学杂志

Purpose To improve the understanding of features and diagnostic value of PET/CT imaging in primary tracheal cancer as it is a rare disease.Materials and Methods The18F-FDG PET/CT image data of 11 patients with primary tracheal cancer confirmed pathologically were retrospectively analyzed. The contrast-enhanced CT scan was performed in 9 patients. The PET/CT and contrast-enhanced CT imaging data were analyzed.Results Out of the 11 cases, 5 were adenoid cystic carcinoma, 4 were squamous cell carcinoma and 2 were adenocarcinoma. Endotracheal round or elongated uptake lesions were found in PET imaging. The maximum standardized uptake value of adenoid cystic carcinoma, squamous cell carcinoma and adenocarcinoma were 4.5±1.2, 8.1±1.7 and 4.5±2.4, respectively. The accuracy of diagnosis of PET/CT was 100%(11/11). Soft tissue density nodule or mass in trachea was found in CT scan. The accuracy of CT diagnosis was 81.8% (9/11). Among the 9 patients who underwent enhanced CT scan, 3 had significantly enhanced lesions and 6 had moderate enhanced ones. Mediastinal lymph node metastasis was found in 1 patient. There was no distant metastasis in all the 11 patients.Conclusion Primary tracheal cancer has features of PET/CT imaging such as soft tissue nodules or mass in tracheal lumen or on its walls accompanied by FDG increase. The utilization of metabolic and anatomic imaging of PET/CT has great significance in clinical diagnosis and therapy of primary tracheal cancer.

Mucosa-associated lymphoid tissue lymphoma of the trachea: case report / Linfoma do tecido linfoide associado à mucosa de traqueia: relato de caso

CONTEXT: Mucosa-associated lymphoid tissue (MALT) lymphomas are most commonly found in the stomach, lungs, orbital soft tissue, salivary glands and thyroid. Involvement of the trachea is extremely rare. CASE REPORT: This report describes a rare case of MALT lymphoma of the trachea in a 71-year-old woman who presented with a one-year history of coughing, dyspnea, hoarseness and weight loss. There was an infiltrative lesion in the mid-trachea. The anatomopathological diagnosis was only made from the fifth endoscopic biopsy attempt. Immunochemotherapy consisting of rituximab, cyclophosphamide, vincristine and prednisone (R-COP) induced complete remission of the symptoms and endoscopic lesion. CONCLUSIONS: MALT lymphoma of the trachea is extremely rare and indolent disease. It has to be considered in the differential diagnosis of airway lesions. It is crucial to obtain an anatomopathological diagnosis from a specialized pathologist. Immunochemotherapy with R-COP induced complete remission of the disease.

CONTEXTO: Linfomas de tecido linfoide associado à mucosa (TLAM) são mais comumente encontrados no estômago, pulmões, órbita, glandulas salivares e tireoide. O envolvimento da traqueia é extremamente raro. RELATO DE CASO: Relato de caso raro de linfoma TLAM de traqueia, em mulher de 71 anos com tosse, dispneia, rouquidão e emagrecimento há um ano. Detectou-se lesão infiltrativa na porção média da traquéia. O diagnóstico anatomopatológico só foi obtido na biópsia do quinto procedimento endoscópico. A imunoquimioterapia R-COP (rituximabe, ciclofosfamida, vincristina e prednisona) induziu remissão completa dos sintomas e da lesão endoscópica. CONCLUSÕES: Linfoma TLAM de traqueia é uma doença indolente e extremamente rara, que deve ser considerada no diagnóstico diferencial das lesões de vias aéreas. O diagnóstico anatomopatológico por um patologista experimentado é fundamental. Imunoquimioterapia com R-COP levou à remissão completa da doença.

A Tracheal Chondroma Detected while Diagnosing Lung Cancer / 대한내과학회지

Tracheal chondromas are very rare benign cartilaginous tumors. We present the first case report, to our knowledge, of a tracheal chondroma in Korea. A 73-year-old male was referred to our hospital for a mass in the left lung. Flexible bronchoscopy was performed to evaluate the lung mass and incidentally found a tracheal mass as well. A biopsy and histological examination of the tracheal mass revealed a chondroma.

A Tracheal Chondroma Detected while Diagnosing Lung Cancer / 대한내과학회지

Tracheal chondromas are very rare benign cartilaginous tumors. We present the first case report, to our knowledge, of a tracheal chondroma in Korea. A 73-year-old male was referred to our hospital for a mass in the left lung. Flexible bronchoscopy was performed to evaluate the lung mass and incidentally found a tracheal mass as well. A biopsy and histological examination of the tracheal mass revealed a chondroma.

Glomangiomyoma of the Trachea

A glomus tumor is an uncommon soft tissue tumor that is most commonly found in the subungual area and a glomus originating in the trachea is extremely rare. Histologically and ultrastructurally, these tumors have been divided into three subtypes: classic glomus tumors, glomangiomas, and glomangiomyomas. Glomangiomyomas account for less than 10% of all glomus tumors and are the least common type. We report a case of a 54-year-old man with glomangiomyoma of the trachea who presented with stridor. We treated the tumor by segmental resection and primary repair via a transcervical approach.

Lipoma de traqueia simulando doença pulmonar obstrutiva / Tracheal lipoma mimicking obstructive lung disease

Os tumores de traqueia são raros e podem ser de difícil diagnóstico, por mimetizarem outras afecções pulmonares de caráter obstrutivo, como asma e DPOC. Relatamos um caso de lipoma de traqueia em uma paciente que fora tratada para asma e DPOC, sem resposta adequada, até apresentar complicações infecciosas. A presença do tumor foi sugerida por TC de tórax e confirmada por fibrobroncoscopia. A paciente foi submetida à ressecção endoscópica do tumor; porém, evoluiu para o óbito por pneumonia e choque séptico.

Tracheal tumors are rare and can be difficult to diagnose due to their capacity to mimic other obstructive lung diseases, such as asthma and COPD. We report the case of a female patient with a tracheal tumor. She had previously been treated for asthma and COPD, with little response to the treatment. The onset of infectious complications prompted further investigation. Chest CT images suggested the presence of a tumor, which was confirmed by fiberoptic bronchoscopy. The tumor was endoscopically resected. However, the patient evolved to death due to pneumonia and septic shock.

Diagnosis and surgical treatment of primary airway tumors / 肿瘤研究与临床

Primary airway tumors are accounted about 1 % of respiratory tumors and have above 20 types. However, due to particularity of the anatomy and function of airway, early diagnosis of the primary air tumors is difficult and the rate of misdiagnosis can reach 83.3 %. To reduce the rate of misdiagnosis, the key measurements of diagnosis are recognization of primary airway tumors, and the main methods include chest computed tomography (CT) and fiberoptic bronchoscopy examination. Surgical treatment is an important part,it includes tumor excision by airway fenestration, the part excision of airway and suture, the resection of airway tumor by its margin and anastomosis, and carinal resection and anastomosis. Anesthesia and the management of respiratory airway are important guarantees for the successful operation. According to the difference of the tumors, the suitable method of anesthesia should be choiced. It is emphasized for anesthesiologist to participate in the preoperative discussion. The postoperative complications include the anastomotic fistula, the anastomotic fistula communication with large vessel, the anastomotic stenosis and granuloma formation, and the pulmonary infection and atelectasis.

Glomus Tumor of the Trachea : A case report / 대한흉부외과학회지

Glomus tumor is a distinctive type of perivascular tumor whose cell type is a modified smooth cell that closely resembles the glomus body, and this is where the tumor's name is derived. This kind of neoplasm is a benign and rather uncommon neoplasm that can be found in any part of the body, yet it is most commonly seen in the subungual area. Glomus tumor of the trachea is extremely rare. We present the clinicopathologic findings of a resected glomus tumor of the trachea along with a review of the related literature.

Papilomatose laringotraqueobrônquica: aspectos em tomografia computadorizada de tórax / Laryngotracheobronchial papillomatosis: findings on computed tomography scans of the chest

OBJETIVO: Apresentar os achados em tomografia computadorizada (TC) de tórax em pacientes com papilomatose laringotraqueobrônquica. MÉTODOS: Foram estudadas, retrospectivamente, as TCs de oito pacientes, cinco masculinos e três femininos, com idades variando de 5 a 18 anos, com média de 10,5 anos. Os exames foram analisados por dois radiologistas, de forma independente, e as decisões finais foram obtidas por consenso. RESULTADOS: Os achados mais comuns nas TCs foram as lesões nodulares da traquéia e os nódulos pulmonares, muitos com escavação. CONCLUSÕES: O aspecto tomográfico mais freqüentemente observado nos casos de papilomatose laringotraqueobrônquica foi a associação de lesões polipóides de traquéia com múltiplos nódulos pulmonares, vários deles escavados.

OBJECTIVE: To present the findings of computed tomography (CT) scans of the chest in patients with laryngotracheobronchial papillomatosis. METHODS: We retrospectively analyzed CT scans of eight patients, five males and three females, ranging from 5 to 18 years of age with a mean age of 10.5 years. Images were independently reviewed by two radiologists. In discrepant cases, a consensus was reached. RESULTS: The most common CT findings were intratracheal polypoid lesions and pulmonary nodules, many of which were cavitated. CONCLUSIONS: In patients with laryngotracheobronchial papillomatosis, the most common tomographic finding was the combination of intratracheal polypoid lesions and multiple pulmonary nodules, many of which were cavitated.

The surgical treatment of malignant tracheal tumor / 中国医师进修杂志

Objective To summarize the clinical experience of surgical treatment of malignant tra-cheal tumor.Methods Two hundred and fifty-eight medical charts about surgical treatment of malignant tracheal tumor between July 1980 and July 2007 were retrospectively reviewed.The main histological type were adenoid cystic carcinoma (104/258) and squamous cell carcinoma (93/258).Operative methods in-cluded circumferential resection end to end anastomosis of trachea (n=157),carinal resection and re-construetion (n=51),sleeve pneumonectomy(n=22),windowing removal(n=23),tracheal allotrans-plantation(n=2),circumferential reflection and anastomosis of trachea with assistance of extracorporeal cir-culation (n=3).Results No patient died from operation in the 258 cases,and the overall 5-and 10-year survival rates were 64.O%(165/258)and 58.1%(150/258),respectively.The morbidity rate was 5.4%(14/258).Conclusiom Surgical excision is the most effective treatment of malimmnt tracheal tumor.Tracheal resection and carinal reflection are the main operative methods in the treatment of malignant tracheal tumor.Decreasing operative complications is the key of successfully surgical treatment.

Endoscopic Removal of Benign Endotracheal/Endobronchial Tumor / 대한흉부외과학회지

Endoscopic removal is acceptable for the treatment of endotracheal/endobronchial mass, because it is less invasive in high-risk patients and a conservative procedure for benign tumors. Two benign tumors in the lumen of the trachea (pure lipoma) and in the intermediate bronchus (hamartoma) were completely eradicated by our procedures, which involved diathermic snaring and residual mass removal with biopsy forceps under the guidance of fiberoptic bronchoscopy. No tumor recurrence was evident after extended follow-up (6 years for endotracheal lipoma and 2.5 years for endobroncheal hamartoma). Our method is safe and less invasive for the patient and provides the surgeon with better view during procedure.

Combined external beam radiotherapy and intraluminal brachytherapy for tracheal and bronchogenic carcinoma / 中华放射肿瘤学杂志

Objective To discuss the role of combined external beam radiotherapy and intraluminal brachytherapy for tracheal cancer and bronchogenic carcinoma. Methods From February 1987 to August 1996, 4 patients with primary tracheal cancer, 22 with primary lung cancer and 14 (18 sites) with postoperative recurrent lung cancer were irradiated. External beam radiotherapy (EBR ) was delivered with linac X-ray to a total dose of 30-77?Gy (median 52?Gy). Intraluminal irradiation (IR ) was delivered with low dose rate 192 Ir (1.48?BGq) to a total dose of 10-53?Gy (median 28?Gy), 4-6?Gy per fraction on the bronchial mucosa. Results Complete response (CR) was obtained in 37 patients, partial response (PR) in 2 and minor response (MR) in 1. The 3-year and 5-year local control rates by Kaplan-Meier method were 75% and 65%. Twenty-three patients have survived for 3 years or longer, with a 3-year survival rate of 57.5%. Complications were rare. Conclusions Combined external beam radiotherapy and intraluminal irradiation is effective for primary lung cancer and localized tracheal cancer, possibly giving long-term survivals.