Frontal cutaneous and bone sarcoidosis: an example of the contiguous spread of granulomas

Sara Braga; Florence Jeny; Marjorie Latrasse; Nathalie  Saidenberg Kermanac’h; Stéphane  Tran Ba; Hilario Nunes

doi:10.36141/svdld.v40i2.14594

Frontal cutaneous and bone sarcoidosis: an example of the contiguous spread of granulomas

Authors

Sara Braga Unidade Local de Saúde da Guarda
Florence Jeny Department of Pulmonology, Avicenne Hospital (Assistance Publique – Hôpitaux de Paris), Bobigny, Paris
Marjorie Latrasse Department of Radiology, Avicenne Hospital (Assistance Publique – Hôpitaux de Paris), Bobigny, Paris
Nathalie Saidenberg Kermanac’h Department of Rheumatology, Avicenne Hospital (Assistance Publique – Hôpitaux de Paris), Bobigny, Paris
Stéphane Tran Ba Department of Radiology, Avicenne Hospital (Assistance Publique – Hôpitaux de Paris), Bobigny, Paris
Hilario Nunes Department of Pulmonology, Avicenne Hospital (Assistance Publique – Hôpitaux de Paris), Bobigny, Paris

Keywords:

Sarcoidosis; Scar sarcoidosis, Cutaneous involvement, Bone involvement, Musculoskeletal-cutaneous involvement

Abstract

Sarcoidosis is a multisystemic granulomatous disease of unknown origin. It has been argued that the skin is one of the entry doors of the possible antigen that causes sarcoidosis and after entering the skin, the causal agent may progress to the underlying bone.

We report four cases with development of sarcoidosis in old scars located on the forehead, and contiguous bone involvement of the frontal bone.

In most cases scar sarcoidosis was the first manifestation of the disease, and in most cases it was asymptomatic. Two patients never required treatment, and in all cases the frontal problem improved or remained stable spontaneously or under sarcoidosis treatment.

Scar sarcoidosis in the frontal area may have contiguous bone damage. This bone involvement does not seem to be associated with neurological extension.

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