Aponeurotic fibroma
Rare fibrous tumor usually present on the hands or feet
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Signs and symptoms
Aponeurotic fibroma occurs most frequently in the fingers, palms, and soles of the distal extremities. Typically, the tumor is defined as a smaller than 3 cm diameter, firm, non-tender mass that grows slowly. It is prone to infiltrate the surrounding tissue and, following surgical resection, is more likely to recur locally.
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Diagnosis
A histological examination is necessary to make a diagnosis. Histologically, the tumor is characterized by fibroblast growth and calcification.
Imaging results include edematous alterations and subcutaneous neoplastic tumors with hazy margins that appear to be encroaching on the surrounding tissues. The fascia and tendon sheath are next to the tumor. While T2WI displays heterogeneous signals, T1WI displays signals that are hypointense to isointense. Additionally, there is heterogeneous contrast enhancement.
Treatment
The treatment of choice for an aponeurotic fibroma is surgical excision.
Epidemiology
Aponeurotic fibroma is a rare tumor. The tumor often manifests in the first or second decade of life, while examples have been documented at birth and 67 years of age. Patients who are male are impacted twice as frequently as those who are female.