BACKGROUND: The purpose was to describe the Nordic treatment practices and to reach a Nordic consensus for the treatment of sebaceous eyelid carcinoma.
METHODS: The treatment practices data was collected by a questionnaire with 37 questions to the Nordic oculoplastic surgeons and analyzed. A PubMed MEDLINE database search was done to gather data on the published treatment practices and recommendations. A working group that consisted of in minimum one senior consultant from each leading Nordic University Eye Hospital was assigned. A structured interactive method was used to establish the consensus.
RESULTS: Twenty-four doctors responded to the questionnaire. 23/24 (96%) of the respondents took a biopsy before surgery. Regional lymph node scanning was routinely done by 14/23 (61%) and a systemic screening of a metastatic disease by 13/23 (57%). 6/22 (27%) never took conjunctival mapping biopsies and 12/23 (52%) never screened for Muir- Torre. Respondents used Mohs surgery, frozen section or multi-stage excision with delayed closure, and 5-6 mm was the mostly preferred margin. Sentinel lymph node biopsy was a possible option for 9/22 (41%) and cryotherapy and Mitomycin C for 6/22 (27%) respondents. 50% of respondents considered radiation as a treatment option. 15/16 (94%) respondents always followed-up their patients, most for 5 years. Two thirds scanned regional lymph nodes during the follow-up. Consensus was reached for 18 statements representing three domains: preoperative work-up, treatment and follow-up.
CONCLUSIONS: Treatment practices differ in between the five Nordic countries which have similar public health care systems. In the article the authors present a Nordic consensus for the treatment of eyelid sebaceous carcinoma.

Malignant hair follicle tumors are rare skin adnexal malignancies that have a predilection for the head and neck region. They can be categorized into a number of different subtypes. Histologically, they are distinct from their benign counterpart. To the best of our knowledge, there is no extensive review of these malignancies, especially in the periorbital region. We aim to provide a literature review and a guideline for management of these malignant tumors in the periorbital region. Database from Medline, PubMed, Embase, and Google Scholar were consulted. A total of 16 cases from the literature on hair follicle malignancies in the periorbital region were included in this review. The clinical presentations, diagnostic patterns, investigations used, and best management approach of these tumors are discussed. The American Joint Committee on Cancer (AJCC) 7(th) edition carcinoma of the eyelid staging system was used to describe their behaviors. We recommend wide excision surgery and a close follow-up for these tumors. Tumors presenting with a late stage require work-up for distant metastasis and consideration for exenteration procedures. The role of radiotherapy and chemotherapy in this context is still uncertain.

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A large number of reports are available on the options for reconstructing specific defects of the eyelids or (peri) orbital area, which may complicate decision making in choosing the most optimal technique for a particular defect. Based on more than 40 years\' experience in reconstruction of eyelids and periorbital defects, combined with an extensive literature review, general principles on reconstruction are presented and illustrated. Surgical techniques are outlined with respect to anatomical layer, depth, size and location of the defect. Adherence to specific principles for eyelid and canthal reconstruction will lead to predictable, stable and functionally good results.

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The ocular adnexal lymphomas represent the malignant end of the spectrum of lymphoproliferative lesions which occur in the conjunctiva, eyelids, lacrimal gland and orbit. The new \"W.H.O. Classification of Tumours of Haemopoietic and Lymphoid Tissues\" is the most suitable for subdividing the ocular adnexal lymphomas, whereby the extranodal marginal zone B-cell lymphoma (EMZL) represents the most common lymphoma subtype. Management of patients with ocular adnexal lymphomas includes a systemic medical examination to establish the clinical stage of the disease. Most patients have stage IE disease and current recommended therapy for this is radiotherapy, while disseminated disease is treated with chemotherapy. Despite usually demonstrating an indolent course, EMZLs are renowned for recurrence in extranodal sites, including other ocular adnexal sites. Furthermore, Blastic transformation of EMZL with a corresponding aggressive clinical course has been described. Long-term follow-up with half-yearly examinations are therefore recommended. Major prognostic criteria for the ocular adnexal lymphomas include the age of the patient, anatomical location of the tumour, stage of the disease at first presentation, serum lactate dehydrogenase level at the time of diagnosis, lymphoma subtype as determined using W.H.O. lymphoma classification and the tumour cell growth rate. The clinical symptoms and histopathological findings of the differential diagnosis of lymphoproliferative lesions of the ocular adnexa are discussed.