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Updated: Jul 15, 2026

International Expert Consensus and Recommendations for Neonatal Pneumothorax Ultrasound Diagnosis and Ultrasound-guided Thoracentesis Procedure
Published on: March 12, 2020
[Metastatic placental site trophoblastic tumor. Diagnosis after pneumothorax]
1Institut für Pathologie, Katholisches Marienkrankenhaus gGmbH, Alfredstrasse 9, 22087 Hamburg, Germany. schulz-bischof.patho@marienkrankenhaus.org
Placental site trophoblastic tumor (PSTT) is a rare, mostly benign tumor, which in 10-15% of cases shows a malignant behavior. The case of a 35 year old woman with pulmonary metastasis of a PSTT is reported. This finding was incidental in an atypical lung-resection due to pneumothorax. The literature on this rare tumor entity is reviewed especially in terms of differential diagnosis, biological behavior and association with a pneumothorax.
Placental site trophoblastic tumor (PSTT) is a rare, mostly benign tumor, which in 10-15% of cases shows a malignant behavior. The case of a 35 year old woman with pulmonary metastasis of a PSTT is reported. This finding was incidental in an atypical lung-resection due to pneumothorax. The literature on this rare tumor entity is reviewed especially in terms of differential diagnosis, biological behavior and association with a pneumothorax.
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