Traumatic intradiploic epidermoid cyst manifest as scalp papule

Abstract

A posterior fossa intradiploic epidermoid cyst was removed from the calvarium of an otherwise healthy 34-year-old woman after work up for dizziness and blurry vision. The patient admitted to a history of a firm papule that occurred occasionally after a trauma sustained to the region years prior. The authors propose that trauma and cutaneous stigmata are potential associations with intradiploic epidermoid cysts.

An Asymptomatic Posttraumatic Intracranial Epidermal Inclusion Cyst: Avoiding the Maslow Hammer

“…A PubMed literature search using MeSH terms “epidermoid cyst,” “trauma,” and “intracranial” with Boolean operator “AND” revealed only nine cases of posttraumatic intracranial epidermoid cysts, which were surgically removed ( Table 1 ). 2 3 4 5 6 7 8 9 10 The sine quo non for epidermal inclusion cyst is the presence of marked diffusion restriction. The complications to be aware of are hemorrhage, rupture leading to aseptic meningitis, and rare pathological progression to dermoid cyst or squamous cell carcinoma.…”

Quiste Epidermoide Intradiploico con Invasión Intracerebral: Reporte de Caso y Revisión de la Literatura

“…13 En la TC de cerebro se describe una masa hipodensa, homogénea y lobulada, la cual no realza tras la administración de contraste endovenoso. 2, 13,17 Suelen presentar un rango de densidad de -20 a +20 unidades de Hounsfield (UH); en algunos casos pueden mostrar calcificaciones en la pared quística. 3 En nuestro paciente, la densidad tumoral se mostró entre -3 UH y +30 UH (excepto en algunas áreas calcificadas).…”

Atypical presentation of an intradiploic epidermoid cyst

“… 1 Traumatic implantation of epidermal tissue; however, leads to acquired EC development. 2 The patient underwent surgical excision of the EC through a supra-auricular skin incision. Total removal of the EC was accomplished with closure of the defect between the squamous bone and the mastoid cavity ( Figures 2A & 2B ).…”