title: A Rare Case of Eccrine Porocarcinoma of the Eyelid.
abstract: BACKGROUND
  To report a rare case of eyelid eccrine porocarcinoma and compare this to previous documented cases in the literature.
  
  
  METHODS
  We report a case of an 86-year-old man who presented with three months' history of irritation in the right eye, who was found to have an irregular nodule on lower eyelid, which was later diagnosed as eccrine porocarcinoma (EPC). The lesion was excised and the defect repaired with Hughes flap. A computerized tomography (CT) scan of the head, neck, and chest showed no metastasis and no lymphadenopathy. There was no evidence of recurrence after 18 months of follow-up.
  
  
  CONCLUSIONS
  To date, there have been only six cases of eyelid EPC reported in the literature. EPC has significant risk of recurrence and metastases after local excision. It is therefore important to consider it in the differential diagnosis of malignant eyelid tumour. A histological diagnosis should prompt wide margin excision, assessment of the patient for regional lymph node involvement, and imaging for metastatic disease.
authors.affiliation: a Department of Ophthalmology , Aberdeen University Hospital , Aberdeen , Scotland and.
authors.forename: Paul Yihseng
authors.initials: PY
authors.lastname: Chua
authors.affiliation: a Department of Ophthalmology , Aberdeen University Hospital , Aberdeen , Scotland and.
authors.forename: Kurt Spiteri
authors.initials: KS
authors.lastname: Cornish
authors.affiliation: b Department of Pathology , Raigmore Hospital , Inverness , Scotland.
authors.forename: Grant
authors.initials: G
authors.lastname: Stenhouse
authors.affiliation: a Department of Ophthalmology , Aberdeen University Hospital , Aberdeen , Scotland and.
authors.forename: Christopher W
authors.initials: CW
authors.lastname: Barras
mesh_terms: D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000378:metabolism; D057090:Eccrine Porocarcinoma / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D005142:Eyelid Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D013508:Ophthalmologic Surgical Procedures; D013544:Sweat Gland Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000601:surgery
chemical_list: D014408:Biomarkers, Tumor
keywords: Cancer; eccrine porocarcinoma; eyelid; malignancy; tumour