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Pneumothorax is a medical condition defined by the buildup of air in the pleural space between the lungs and the chest wall. This accumulation of air can lead to partial or complete lung collapse, resulting in a range of clinical manifestations. Understanding the clinical presentation and effective management strategies is crucial for healthcare professionals in providing timely and appropriate care to individuals with pneumothorax.
Clinical Manifestations:
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A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
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Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
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Pneumothorax II: Pathophysiology01:08

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Pneumothorax means the presence of air in the pleural space — the thin potential gap between the visceral and parietal pleura. This condition disrupts the normal pressure balance that keeps the lungs inflated, leading to partial or complete collapse of the affected lung.Normal physiologyUnder normal conditions, the pleural space maintains a slightly negative intrapleural pressure, which keeps the lungs expanded against the chest wall. This negative pressure creates a delicate balance...
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Pleuropulmonary Blastoma: A Case Report.

Sümeyye Ekmekcı1, Anıl Aysal, Nur Olgun

  • 1Department of Pathology, Dokuz Eylül University, Faculty of Medicine, İZMİR, TURKEY.

Turk Patoloji Dergisi
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Pleuropulmonary blastoma, a rare childhood cancer, presents as a thoracic mass. This case highlights its clinical, histopathological, and immunohistochemical features for accurate diagnosis and management.

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Area of Science:

  • Pediatric Oncology
  • Thoracic Pathology
  • Embryonal Tumors

Background:

  • Pleuropulmonary blastoma (PPB) is a rare embryonal tumor affecting infants and young children.
  • It typically originates in the lung or, less commonly, the parietal pleura.
  • Systematic incidence data for PPB is limited.

Purpose of the Study:

  • To discuss the clinical, histopathological, and immunohistochemical features of pleuropulmonary blastoma.
  • To outline the differential diagnosis for thoracic tumors in children.
  • To present a case study of a pediatric patient with PPB.

Main Methods:

  • Case presentation of a 3-year-old boy with a right hemithorax mass.
  • Diagnostic procedures included radiological examination, core needle biopsy, wedge biopsy, and lobectomy.
  • Histopathological and immunohistochemical analyses were performed on tumor samples.

Main Results:

  • Radiology revealed a solid mass occupying the right hemithorax.
  • Histopathology showed blastemal cells in a myxoid stroma; immunohistochemistry was positive for vimentin and desmin.
  • MIB-1 labeling index exceeded 90%, consistent with pleuropulmonary blastoma type 3. Diaphragmatic infiltration was noted.

Conclusions:

  • Pleuropulmonary blastoma is a rare pediatric thoracic malignancy requiring consideration in differential diagnoses.
  • Early diagnosis and appropriate treatment, including chemotherapy, are crucial for patient outcomes.
  • This case underscores the importance of comprehensive pathological evaluation for rare childhood cancers.