This audit demonstrated widespread diagnostic difficulties associated with head and neck FNAC in a large patient sample. It is likely that these problems will be mirrored in other cancer networks. In order for one-stop head and neck clinics to succeed, the non-diagnostic rate of FNAC in particular must be minimised. There are strategies to enable this, depending on local resources, including increased access to cytologists or cytology technicians, diagnostic ultrasound, image guidance for FNAC and the use of ultrasound-guided core biopsy.
Epithelioid hemangioendothelioma arising in the skin is extremely rare, and the majority of documented cases have developed in association with an underlying bone tumor. We report eight patients with an age range of 29-84 years (mean 53), who presented with primary cutaneous tumors at a variety of sites including the palm, shin, neck, knee, nose, back, and penis with a duration of between 6 and 12 months. Histologically, all eight cases presented as circumscribed nodules with an overlying acanthotic epidermis, three showing striking acrosyringeal proliferation, reminiscent of eccrine syringofibroadenoma. The tumors were composed of an admixture of slightly pleomorphic spindle and epithelioid cells with abundant, sharply defined eosinophilic cytoplasm and vesicular nuclei containing single nucleoli. Mitoses were generally sparse. All tumors showed intracytoplasmic lumina and intraluminal erythrocytes were occasionally apparent. The tumor cells were embedded in a myxoid or hyaline matrix. In contrast to visceral lesions, a vascular origin was not evident in any of our cases. The tumor cells variably expressed CD31, CD34, factor VIII-Rag, and smooth-muscle actin but not pankeratin or epithelial membrane antigen. Follow-up ranged from 4 months to 3 years. None of the lesions has thus far recurred and there have been no metastases.
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