Silica Pregranuloma

Foreign body post‐varicella granulomas due to talc

“…Various other substances produce foreign body granulomas in the skin, including metal, silica, beryllium and silicone 15–18 . In our case, the clinical history and verification of the material with conventional and electronic microscopy allowed us to determine the cause.…”

Firm Papules and Nodules on Face, Neck, and Thorax

“…Most reported cases of silica or silicon granuloma occurred at scar sites. [1][2][3][4][5] Such localization occurred as a result of the introduction of silica material into wounds or administration of silicone injections for cosmetic reasons. Skin lesions, which are often nodular, indurated, and erythematous, develop after an asymptomatic latent period that can range from several weeks to many years.…”

“…Cutaneous silica granuloma is a rare condition that occurs many years after accidental trauma or minor wounds contaminated by glass, sand, or other silica-containing particles. Most reported cases of silica or silicon granuloma occurred at scar sites . Such localization occurred as a result of the introduction of silica material into wounds or administration of silicone injections for cosmetic reasons.…”

Cutaneous silica granuloma with generalized involvement of lymph nodes

“…These particles are doubly refractile when examined under polarized light 7 . With the exception of the case reported by Shattock, all the cases reported of silica or silicon granuloma were at scar sites 1,3–6 . These were due to silica material being introduced into wounds or where silicone injections were given for cosmetic reasons.…”

“…Silica granuloma of the skin with involvement of an axillary lymph node has only been reported once 3 . A wide range of granulomatous reactions to silicon compounds, for example, as found in sand, gravel slate, glass and rock material, have been reported at the site of scars 4–6 . This paper will describe the occurrence of cutaneous silica granuloma with generalized involvement of lymph nodes caused by rock dust.…”