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Leiomyoma in the thumb causing trigger finger.
Rodrigo Roitman Pozzatti1, Caio Passos Cordeiro1, Julia de Menezes Araujo da Cruz1
1Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.
BMJ Case Reports
|August 5, 2015
Summary
This study details a rare case of leiomyoma, a benign smooth muscle tumor, found in a woman's hand. Histopathological analysis confirmed the diagnosis after initial hypotheses of other soft tissue tumors were ruled out.
Area of Science:
- Oncology
- Pathology
- Dermatology
Background:
- Leiomyomas are typically benign smooth muscle tumors, most commonly found in the uterus.
- While rare, leiomyomas can occur in other anatomical locations, including the extremities.
- Accurate diagnosis is crucial for appropriate patient management.
Observation:
- A 61-year-old woman presented with a painless cystic lesion on her left thumb.
- The lesion was associated with symptoms of trigger finger, affecting thumb function.
- Initial differential diagnoses included ganglionic cyst and giant cell tumor.
Findings:
- Surgical excision and subsequent histopathological examination revealed the lesion to be a leiomyoma.
- The tumor was confirmed through immunohistochemical staining, including Smooth Muscle Actin, Desmin, S-100, and CD34.
- This case represents a rare occurrence of leiomyoma in the hand.
Implications:
- Highlights the importance of considering leiomyoma in the differential diagnosis of hand tumors.
- Emphasizes the value of detailed histopathological analysis for definitive diagnosis of rare soft tissue tumors.
- Contributes to the understanding of extragenital leiomyoma presentations and characteristics.
