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Journal of Surgical Case Reports Jun 2024Chest wall sarcomas are reported to be infrequent among thoracic tumors. The spindle cell subtype makes up a small percentage of this group. These tumors can be...
Chest wall sarcomas are reported to be infrequent among thoracic tumors. The spindle cell subtype makes up a small percentage of this group. These tumors can be asymptomatic or cause symptoms of chest pain and shortness of breath due to the mass effect, which can lead to a delay in diagnosis. A 10-year-old female with a persistent cough, shortness of breath on exertion, and left-sided chest pain presented to the ED. Imaging indicated a chest wall mass filling the left hemithorax with a rightward mediastinal shift. During surgical resection, two tumors were removed, with resection of parts of the latissimus dorsi and serratus anterior. A diagnosis of MGA:NUTM1 spindle cell sarcoma was made pathologically. The patient was successfully treated with surgery and adjuvant chemoradiotherapy. We hope to add to our academic knowledge by presenting the presentation and treatment of SCS in a pediatric patient.
PubMed: 38933828
DOI: 10.1093/jscr/rjae431 -
Journal of Cardiothoracic Surgery Jun 2024In a sedated patient, airway compression by a large mediastinal mass can cause acute fatal cardiopulmonary arrest. Extracorporeal membrane oxygenation (ECMO) has been...
BACKGROUND
In a sedated patient, airway compression by a large mediastinal mass can cause acute fatal cardiopulmonary arrest. Extracorporeal membrane oxygenation (ECMO) has been investigated to protect the airway and provided cardiopulmonary stability. The use of ECMO in the management of mediastinal masses was reported, however, the management complicated by cardiopulmonary arrest is poorly documented.
CASE PRESENTATION
32-year-old female presented with acute onset of left arm swelling and subacute onset of dry cough. Further investigation showed a deep venous thrombosis in left upper extremity as well as a large mediastinal mass. She underwent mediastinoscopy with biopsy of the mass which was complicated by cardiopulmonary arrest secondary to airway obstruction by the mediastinal mass. Venoarterial ECMO was initiated, while concurrently treating with a chemotherapy. The mediastinal mass responded to the chemotherapy and reduced in size during 2 days of ECMO support. She was extubated successfully and decannulated after 2 days of ECMO and discharged later.
CONCLUSIONS
Extracorporeal membrane oxygenation can serve as a viable strategy to facilitate cardiopulmonary support while concurrently treating the tumor with chemotherapy, ultimately allowing for the recovery of cardiopulmonary function, and achieving satisfactory outcomes.
Topics: Humans; Extracorporeal Membrane Oxygenation; Female; Adult; Heart Arrest; Mediastinal Neoplasms; Airway Obstruction
PubMed: 38926736
DOI: 10.1186/s13019-024-02918-1 -
Cureus May 2024Pulmonary cryptococcosis is becoming increasingly common in immunocompetent hosts, manifesting with variable clinical presentations ranging from asymptomatic...
Pulmonary cryptococcosis is becoming increasingly common in immunocompetent hosts, manifesting with variable clinical presentations ranging from asymptomatic colonization to severe pneumonia. Radiological findings are non-specific, such as nodular infiltrates, mass-like lesions, and mediastinal lymphadenopathy. We present a case of a 61-year-old woman with pneumonia coinfected with , an unusual occurrence in an immunocompetent host and the first of its kind. This coinfection posed significant diagnostic challenges due to the rare occurrence of each individual organism in immunocompetent patients as well as the difficulty of their laboratory diagnosis. Treatment regimens, particularly in coinfections, warrant careful consideration to mitigate mortality risk. This case underscores the importance of comprehensive diagnostic strategies and optimized treatment regimens for rare fungal coinfections in immunocompetent hosts.
PubMed: 38919216
DOI: 10.7759/cureus.61085 -
Journal of Cardiothoracic Surgery Jun 2024Pleural solitary fibrous tumors (pSFTs) are rare mesenchymal pleural tumors with rich vascularity. Surgical resection is the cornerstone of pSFTs treatment, requiring...
BACKGROUND
Pleural solitary fibrous tumors (pSFTs) are rare mesenchymal pleural tumors with rich vascularity. Surgical resection is the cornerstone of pSFTs treatment, requiring careful preoperative imaging to delineate lesion extent and vascular supply including contrast-enhanced computed tomography and other examinations depending on its size and characteristics.
CASE PRESENTATION
The patient was a 34-year-old female with a mass measuring approximately 67 × 42 × 65 mm in the left posterior mediastinum. Intraoperatively, the mass demonstrated rich vascularity. Two veins originating from the abdominal cavity entered the lower pole, one converged from the superior pole, draining into the brachiocephalic vein. Additionally, two arteries arose directly from the descending aorta, while several veins drained into the intercostal veins. In response to unexpected intraoperative vascular findings, vascular clips and silk threads were used to ligate them. Subsequently, the tumor was successfully dissected, with approximately 600 ml of blood loss recorded during the 4-hour surgery. The patient exhibited a satisfactory postoperative recovery, and follow-up spanning over six months revealed no indications of recurrence or metastasis.
CONCLUSIONS
We firstly present a case of successful resection of a pSFT in a 34-year-old woman with a distinct feeding vessel arising from the descending aorta and describe the related surgical procedures. This case highlights preoperative evaluation of mass vascularity based on contrast-enhanced computed tomography. When blood supply is challenging to clarify, angiography can offer additional details, especially for giant pSFTs. Despite this, thorough intraoperative exploration remains essential to detect unexpected vessels. Appropriate interventions should be customized based on the vascular origins and the surrounding anatomical structures.
Topics: Humans; Female; Adult; Aorta, Thoracic; Solitary Fibrous Tumor, Pleural; Tomography, X-Ray Computed
PubMed: 38918857
DOI: 10.1186/s13019-024-02872-y -
Endoscopy Dec 2024
Topics: Humans; Liver Transplantation; Endoscopic Ultrasound-Guided Fine Needle Aspiration; Male; Mediastinal Neoplasms; Endosonography; Mediastinum; Female; Image-Guided Biopsy
PubMed: 38917969
DOI: 10.1055/a-2336-3197 -
Diagnostic Pathology Jun 2024Pulmonary hamartomas are benign lung lesions. Histopathologically, pulmonary hamartoma is composed of varying amounts of mesenchymal elements, including chondroid...
BACKGROUND
Pulmonary hamartomas are benign lung lesions. Histopathologically, pulmonary hamartoma is composed of varying amounts of mesenchymal elements, including chondroid tissue, mature adipose tissue, fibrous stroma, smooth muscle, and entrapped respiratory epithelium. Most pulmonary hamartoma cases are asymptomatic and found incidentally during imaging. They usually appear as well-circumscribed lesions with the largest dimension of less than 4 cm. Asymptomatic giant pulmonary hamartomas that more than 8 cm are rare.
CASE PRESENTATION
In the current case report, a 12.0 × 9.5 × 7.5 cm lung mass was incidentally noticed in a 59-year-old female during a heart disease workup. Grossly, the lesion was lobulated with pearly white to tan-white solid cut surface and small cystic areas. Microscopically, representative tumor sections demonstrate a chondromyxoid appearance with relatively hypocellular stroma and entrapped respiratory epithelium at the periphery. No significant atypia is noted. No mitosis is noted, and the proliferative index is very low (< 1%) per Ki-67 immunohistochemistry. Mature adipose tissue is easily identifiable in many areas. Histomorphology is consistent with pulmonary hamartoma. A sarcoma-targeted gene fusion panel was further applied to this case. Combined evaluation of microscopic examination and sarcoma-targeted gene fusion panel results excluded malignant sarcomatous transformation in this case. The mediastinal and hilar lymph nodes are histologically benign. After surgery, the patient had an uneventful postoperative period.
CONCLUSIONS
Giant pulmonary hamartoma is rare; our case is an example of a huge hamartoma in an asymptomatic patient. The size of this tumor is concerning. Thus, careful and comprehensive examination of the lesion is required for the correct diagnosis and to rule out co-existent malignancy.
Topics: Humans; Hamartoma; Female; Middle Aged; Lung Diseases; Incidental Findings; Lung Neoplasms
PubMed: 38909245
DOI: 10.1186/s13000-024-01506-0 -
Indian Journal of Pathology &... Jun 2024Myeloid sarcoma (MS) is a tumor mass comprising myeloid blasts with or without maturation occurring in any site other than bone marrow. It is a rare and distinct...
BACKGROUND
Myeloid sarcoma (MS) is a tumor mass comprising myeloid blasts with or without maturation occurring in any site other than bone marrow. It is a rare and distinct clinical presentation of myeloid neoplasm.
MATERIALS AND METHODS
This is a retrospective study over 7 years (2015-2022) comprising a series of eight cases, which includes clinical details, morphology, immunohistochemistry (IHC) markers, cytogenetics, and molecular details.
RESULTS
These cases showed up as an isolated MS (3/8), as an initial clinical presentation in acute myeloid leukemia (1/8), as acute myeloid leukemia (1/8), as a disease progression in primary myelofibrosis (1/8), as chronic myeloid leukemia (1/8), and as BCR-ABL-negative myelodysplastic syndrome/myeloproliferative neoplasm (1/8). One of the three isolated MS was incorrectly identified as having Ewing's sarcoma. One case each presented at the cervical lymph node, mediastinum, skin, sacral soft tissue, maxillary sinus, and perinephric fat, and two cases presented at the hard palate.
CONCLUSION
Four of the cases in our study were clinically thought of as lymphoma/sarcoma, which was a major diagnostic challenge. All but one case succumbed to their disease. Without adequate clinical history and appropriate use of ancillary techniques such as IHC in tissue biopsies, flow cytometry, cytogenetics, and molecular studies, these cases have a high chance of being misdiagnosed as non-Hodgkin lymphoma, small round blue cell tumor, or undifferentiated carcinomas, which can complicate patient management and prognosis.
PubMed: 38904435
DOI: 10.4103/ijpm.ijpm_474_23 -
World Journal of Surgical Oncology Jun 2024Thymic mucosa-associated lymphoid tissue (MALT) lymphoma is rare and is known to be associated with Sjögren's syndrome (SjS). SjS is rarely accompanied by serositis....
BACKGROUND
Thymic mucosa-associated lymphoid tissue (MALT) lymphoma is rare and is known to be associated with Sjögren's syndrome (SjS). SjS is rarely accompanied by serositis. Here, we describe the first case of postoperative cardiac tamponade and acute pleuritis in a patient with thymic MALT lymphoma associated with SjS.
CASE PRESENTATION
A 33-year-old woman with SjS presented with an anterior mediastinal mass on chest computed tomography, which was performed for further examination of the condition. Suspecting a thymic MALT lymphoma or thymic epithelial tumor, total thymectomy was performed. The mediastinal mass was histopathologically diagnosed as a thymic MALT lymphoma. The patient was discharged with a good postoperative course but visited the hospital 30 days after surgery for dyspnea. Cardiac tamponade was observed and drainage was performed. Four days after pericardial drainage, chest radiography revealed massive left pleural effusion, and thoracic drainage was performed. The patient was diagnosed with serositis associated with SjS and treated with methylprednisolone, which relieved cardiac tamponade and pleuritis.
CONCLUSIONS
Surgical invasion of thymic MALT lymphomas associated with SjS may cause serositis. Postoperative follow-up should be conducted, considering the possibility of cardiac tamponade or acute pleuritis due to serositis as postoperative complications.
Topics: Humans; Lymphoma, B-Cell, Marginal Zone; Female; Adult; Cardiac Tamponade; Sjogren's Syndrome; Pleurisy; Thymus Neoplasms; Postoperative Complications; Thymectomy; Prognosis; Tomography, X-Ray Computed; Acute Disease
PubMed: 38902721
DOI: 10.1186/s12957-024-03442-1 -
International Journal of Surgery Case... Jul 2024Giant cell tumors of bone (GCTB) are infrequent tumors that usually impact the epiphyses of long bones and uncommonly manifest in the ribs. Herein, we report a case of...
INTRODUCTION AND IMPORTANCE
Giant cell tumors of bone (GCTB) are infrequent tumors that usually impact the epiphyses of long bones and uncommonly manifest in the ribs. Herein, we report a case of asymptomatic GCTB directly invading the lung tissue.
CASE PRESENTATION
A 36-year-old man was referred to our emergency department with only left chest pain. Computed tomography revealed a large heterogeneous solid cystic mass in the left lung apex and amorphous calcification and distraction in the posterior part of the left fourth rib. Histological examination also exhibited that the GCTB originated from the rib. The patient underwent an en-bloc resection with no recurrence in his one-year follow-up.
CLINICAL DISCUSSION
GCTB is characterized by osteoclast-like multinucleated giant cells and can exhibit aggressive local behavior. GCTB in the rib is rare, mainly found in the posterior arc. Radiographic features include lytic lesions with bone remodeling, often seen eccentrically in long bone epiphyses. Aggressive tumors may show cortical destruction and soft tissue extension. Surgery is often recommended for GCTB management, aiming for complete resection with sufficient surgical margins.
CONCLUSION
The absence of well-defined diagnostic criteria hinders the accurate diagnosis of GCTB, making a comprehensive assessment through radiological and histological examinations crucial. Upon physical examination, GCTB should be considered in the differential diagnosis for mediastinal lesions, regardless of their size. Furthermore, surgical removal can be taken into account as the primary treatment strategy for tumors that originate from the posterior arc of the ribs, such as GCTB.
PubMed: 38896991
DOI: 10.1016/j.ijscr.2024.109896 -
Journal of Thoracic Disease May 2024Diagnosis of mediastinal lesions on computed tomography (CT) images is challenging for radiologists, as numerous conditions can present as mass-like lesions at this...
BACKGROUND
Diagnosis of mediastinal lesions on computed tomography (CT) images is challenging for radiologists, as numerous conditions can present as mass-like lesions at this site. This study aimed to develop a self-attention network-based algorithm to detect mediastinal lesions on CT images and to evaluate its efficacy in lesion detection.
METHODS
In this study, two separate large-scale open datasets [National Institutes of Health (NIH) DeepLesion and Medical Image Computing and Computer Assisted Intervention (MICCAI) 2022 Mediastinal Lesion Analysis (MELA) Challenge] were collected to develop a self-attention network-based algorithm for mediastinal lesion detection. We enrolled 921 abnormal CT images from the NIH DeepLesion dataset into the pretraining stage and 880 abnormal CT images from the MELA Challenge dataset into the model training and validation stages in a ratio of 8:2 at the patient level. The average precision (AP) and confidence score on lesion detection were evaluated in the validation set. Sensitivity to lesion detection was compared between the faster region-based convolutional neural network (R-CNN) model and the proposed model.
RESULTS
The proposed model achieved an 89.3% AP score in mediastinal lesion detection and could identify comparably large lesions with a high confidence score >0.8. Moreover, the proposed model achieved a performance boost of almost 2% in the competition performance metric (CPM) compared to the faster R-CNN model. In addition, the proposed model can ensure an outstanding sensitivity with a relatively low false-positive rate by setting appropriate threshold values.
CONCLUSIONS
The proposed model showed excellent performance in detecting mediastinal lesions on CT. Thus, it can drastically reduce radiologists' workload, improve their performance, and speed up the reporting time in everyday clinical practice.
PubMed: 38883643
DOI: 10.21037/jtd-24-679