Chronic spontaneous diploic hematoma

Abstract

The authors report the case of a 23-year-old woman with café-au-lait spots and axillary and inguinal freckling who presented with a diploic chronic spontaneous hematoma of the left parietal bone. To the authors' knowledge, this case represents the first description of a diploic hematoma in a patient with stigmata of neurofibromatosis Type 1 unrelated to head trauma. Plain skull radiography showed an osteolytic lesion with well-circumscribed margins, corresponding to the hematoma, together with exuberant perilesional vascular markings. Angiography demonstrated an incidental aneurysm of the left supraclinoidal internal carotid artery and an unusual cortical venous drainage toward the diploic vessels. The blood flow of these vessels on the right hemicranium was sluggish and exhibited enlarged diploic venous lacunas. The authors hypothesize that the hematoma was formed by both an abnormal venous drainage toward the diploic vascular net, together with a vasculopathy that caused stenosis and obstruction of the normal drainage pathways from these vessels.

Chronic Intra-Diploic Hematoma Associated with Anti-Platelet Aggregating Medicine - A Rare Clinical Case Report

“…3,4 Vascular malformations like Intradiploic hemangioma and Diploic venous fistula have been reported to lead to Intradiploic hematoma. 5,6 It is most often reported in young adults but can present at any age, in the reported cases age has ranged from 2 years to 58years. 7,8 Expansion of the diplopic space leads to mass effect and involvement of medial sphenoid wing leads to proptosis and visual impairment.…”