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Locally Advanced Pleomorphic Dermal Sarcoma of the Forearm
Pleomorphic dermal sarcoma (PDS) is a rare mesenchymal tissue tumor that shares pathological features with atypical fibroxanthoma, but also exhibits tumor necrosis, invasion beyond the superficial subcutis, and vascular or perineural infiltration. In addition, PDS also has relatively high rates of local recurrence and metastasis and is usually encountered in elderly men, especially in the head and neck area. In this article, we report a rare case of PDS that infiltrated the fascial tissues in the forearm of a female patient.Ewing Sarcoma in an Infant Metacarpal
We describe a case of Ewing sarcoma in the metacarpal of a 5-month-old male. After pain, erythema, and swelling of the hand failed to resolve with antibiotics, radiographs and magnetic resonance imaging raised suspicion for a neoplastic condition. Open biopsy confirmed the diagnosis of Ewing sarcoma and treatment with chemotherapy and surgical resection was initiated. Ewing sarcoma of the hand in a patient this young is an exceedingly rare diagnosis, which highlights the importance of a broad differential diagnosis when the treatments for more common conditions fail.Myopericytoma of the Base of the Finger: Radiological and Pathological Description of a Rare Benign Entity
A previously healthy 46-year-old woman presented with a mass lesion between the bases of the fourth and fifth fingers of the right hand. The mass had grown progressively over 2 years and started to cause practical difficulties in everyday life. Imaging depicted a hypervascular and well-circumscribed soft tissue tumor with imaging characteristics of a sarcoma. The lesion was treated surgically. The final diagnosis of the specimen upon pathology was a myopericytoma, a benign smooth-muscle cell neoplasm.
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