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Late pulmonary metastasis in uterine PEComa
A Dimmler1, G Seitz, W Hohenberger
1Institute of Pathology, University of Erlangen-Nuremberg, Krankenhausstrasse 8-10, 91054 Erlangen, Germany. Arno.Dimmler@patho.imed.uni-erlangen.de
Journal of Clinical Pathology
|August 2, 2003
Summary
Perivascular epithelioid cell tumours (PEComas) are rare and often considered of uncertain malignant potential. This case highlights that uterine PEComas can metastasize years later, indicating potential malignancy.
Area of Science:
- Oncology
- Pathology
- Mesenchymal Tumors
Background:
- Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms with uncertain malignant potential.
- Uterine PEComas are particularly uncommon, with limited data on their behavior and metastatic potential.
Observation:
- A 68-year-old woman presented with multiple pulmonary lesions seven years post-diagnosis of endometrial stromal sarcoma.
- Histological and immunohistochemical re-evaluation confirmed metastatic uterine PEComa.
Findings:
- This case demonstrates a rare instance of metastatic uterine PEComa.
- The findings suggest that PEComas, previously considered of uncertain malignant potential, can exhibit aggressive behavior and metastasize years after initial diagnosis.
Implications:
- The study underscores the potential for PEComas to metastasize, even years after primary diagnosis.
- Clinicians should consider the possibility of PEComa metastasis in patients with a history of these rare tumors.
- Further research is needed to better understand the malignant potential and long-term behavior of PEComas.