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Masson's tumor: a soft tissue tumor simulating a tendon cyst: case report
Il Giornale Di Chirurgia
|February 24, 2012
Summary
Intravascular papillary endothelial hyperplasia, also known as Masson's tumor, is a benign vascular condition. Histological examination is crucial for accurate diagnosis, distinguishing it from malignant neoplasms and other benign lesions.
Area of Science:
- Vascular Pathology
- Surgical Oncology
- Dermatopathology
Background:
- Intravascular papillary endothelial hyperplasia (Masson's tumor) is a rare, benign vascular proliferation.
- It can mimic both benign and malignant neoplastic conditions clinically and radiologically.
- Accurate diagnosis is essential to avoid misclassification and inappropriate treatment.
Observation:
- A 74-year-old female presented with a 4-month history of finger swelling and soreness.
- Ultrasound revealed a cystic mass, initially suspected to be a tendon cyst.
- Surgical excision was performed for definitive diagnosis and treatment.
Findings:
- Histopathological examination confirmed the mass as Masson's tumor (intravascular papillary endothelial hyperplasia).
- The lesion exhibited papillary growth of hyperplastic endothelial cells within vascular spaces.
- Differential diagnoses included pyogenic granuloma, Kaposi sarcoma, hemangioma, and angiosarcoma.
Implications:
- Masson's tumor diagnosis relies heavily on histology due to its potential to mimic malignancies.
- Understanding its distinct histological features is key for correct identification.
- This case highlights the importance of histopathological correlation in diagnosing unusual soft tissue lesions.