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Article
Assessment Of Vascular And Lymphatic Vessels Density In Benign Vascular Lesions Using CD34 And D2-40 Immunohistochemical Markers

Authors: Jawaher M. Tater --- Bashar H. Abdullah
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 2 Pages: 61-64
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Vascular tumors and malformations, comprising a broad category of lesions often referred to asvascular anomalies. Hemangioma, represents a variety of vascular lesions (both malformations and tumor), whilelobular capillary hemangioma is a common vascular lesion of the skin and mucous membranes that occurs mainly inchildren and young adults. Lymphangiomas are malformations of the lymphatic system. At the level of lightmicroscopy the small lymphatics vessels may be similar to capillaries and sometimes are only tentatively identified bythe nature of their contents or by immunohistochemical staining procedure. This study aimed to assess the vascularand lymphatic vessels density in benign vascular lesions using CD34 and D2-40 immunohistochemical markers.Materials and Methods: Twenty two formalin-fixed paraffin-embedded tissue blocks of Hemangioma/vascularmalformation, thirty of lobular capillary hemangioma and another twenty of lymphangioma.Results: Lymphatic vessel density expressed by D2-40 immunomarker was found in all cases with mean (24.01±14.74)in lymphangioma ,for lobular capillary hemangioma it was (12.67±6.66) and for hemangioma was (9.77±6.82)where as the mean of microvessel density count measured by CD34 immunomarker was (49.87±31.97) for lobularcapillary hemangioma , in hemangioma it was (37.42±23.40) and (25.90±12.23 ) for lymphangioma.Conclusions: All vascular lesions are a mixture of blood and lymphatic vessels with different proportions,hemangioma shows high percentage of blood vessels and lymphangioma shows high percentage of lymphaticvessels.


Article
Oral Hemangiopericytoma: Literature Review and Two Cases from Sulaimani. (An Analytic Study)

Authors: Marwa A. Hamied --- Salwa M. Al-Shaikhani --- Bayad J. Mahmood --- Balkees T. Garib --- et al.
Journal: Journal of Oral and Dental Research مجلة طب الفم والاسنان ISSN: 23106417 Year: 2018 Volume: 5 Issue: 1 Pages: 2-21
Publisher: Iraqi Association for Oral Research الجمعية العراقية لبحوث طب الفم

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Abstract

Background Hemangiopericytoma (HPC) is an uncommon vascular neoplasm.Objectives This study was designed in order to review and summarize published cases with oral HPC since 1949, and unpublished cases from histopathological centers in Kurdistan region/Sulaimani/Iraq. The specifc objective is to correlate cases related medical data with treatment option and prognosis. Materials and Methods A web-based search was initiated for published articles and case reports by using PubMed, and Google. Another search was done in the database of histopathological centers in Sulaimani. Results Two new cases of oral HPC diagnosed in the Department of Oral and Maxillofacial Pathology - Dentistry College - Sulaimani University were reported in details. Literature review disclosed sixty-six HPC of the oral cavity and additional fve cases were reported from Sulaimani (total 71 cases). Male to female ratio was 1:1.5, with a wide age range from newborn to 91 years, 50% of oral HPC was between 15 and 51 years. The tongue was the most common site that HPC originated from, then jawbones, and buccal mucosa. Neither sex nor age seems to have any effect on the outcome of oral HPC (p>0.05). HPCs that originate from oral mucosa including 13 cases from buccal mucosa and gum were benign, while jaw bones HPC was with malignant behavior in six cases. The behavior of twenty-six cases was not recorded. Different sites had no effect on the tumor outcome (p=0.08). Most cases which were treated only by surgery showed no recurrence (p=0.01). Conclusion HPC has a high rate of recurrence with undeterminable malignant potential, and require surgical excision with adequate margins and long-term follow up.

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