Infection can be mimicked by all except:
Pigmented villonodular synovioma. This is incorrect; pigmented villonodular synovioma usually presents as a non-tender non-inflamed mass.
Signs or tests associated with glomus tumours include the following except:
Soucquet-Hoyer. This is incorrect; this is the name of the canals forming the arteriovenous anastomoses. The pin test of Love and the exsanguination test of Hildreth are commonly used tests in the assessment of a potential glomus tumour. Application of cold using ethyl alcohol spray provokes pain and transillumination can show a cherry red mass. Glomus tumours are vascular hamartomas. Although the mechanism of pain generation is uncertain, it is thought to be related to vasodilation and stretch of the Soucquet-Hoyer arteriovenous channels.
The least common sarcoma in the hand:
Liposarcoma. Chondrosarcoma is the most common bone sarcoma seen in the hand and epithelioid sarcoma is the most common soft tissue sarcoma of the hand. Liposarcomata are rarely seen in the hand.
One of the following is not an accepted theory of the aetiology of ganglia:
Traumatic perforation. Traumatic perforation is not an accepted theory, although microtrauma is considered a potential aetiology, amongst others.
The following is true of epithelioid sarcoma except:
Sentinel lymph node biopsy confers staging benefit. This statement is incorrect. Epithelioid sarcoma may be mistaken for other pathology. While SLNB has been described in its management, no unequivocal evidence of benefit has been shown due to a propensity for nodal metastases.
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