J Marcoval1, J Mañá, A Moreno, I Gallego, Y Fortuño, J Peyrí. 1. Department of Dermatology, Hospital de Bellvitge, Carrer Feixa Llarga s/n, Hospitalet de Llobregat, 08907 Barcelona, Spain. jmarcoval@csub.scs.es
Abstract
OBJECTIVE: To assess the presence of foreign material in the granulomatous cutaneous lesions of patients with systemic sarcoidosis. DESIGN AND SETTING: Observational study reevaluating histological specimens at a university referral hospital. PATIENTS: Sixty-five patients diagnosed as having sarcoidosis who developed granulomatous cutaneous involvement. MAIN OUTCOME MEASURES: To detect the presence of polarizable foreign particles in cutaneous biopsy specimens and to evaluate the association with clinical features of the patients. RESULTS: Granulomatous cutaneous involvement was demonstrated in 65 (15.3%) of 425 patients with systemic sarcoidosis. In 14 (22%) of the 65 patients, the cutaneous biopsy specimen showed foreign particles in polarized light. The skin lesions corresponded to 3 different clinical patterns: an admixture of papules and infiltration of previously undetected minute scars (n = 6); scar sarcoidosis (n = 4); and subcutaneous nodules (n = 4). The lesions were located most frequently in the extremities, involving the knees in 10 patients. CONCLUSIONS: The presence of polarizable foreign body material in granulomatous cutaneous lesions is not infrequent in patients with systemic sarcoidosis. Inoculation of foreign matter from a previous inapparent minor trauma may induce granuloma formation in individuals with sarcoidosis.
OBJECTIVE: To assess the presence of foreign material in the granulomatous cutaneous lesions of patients with systemic sarcoidosis. DESIGN AND SETTING: Observational study reevaluating histological specimens at a university referral hospital. PATIENTS: Sixty-five patients diagnosed as having sarcoidosis who developed granulomatous cutaneous involvement. MAIN OUTCOME MEASURES: To detect the presence of polarizable foreign particles in cutaneous biopsy specimens and to evaluate the association with clinical features of the patients. RESULTS:Granulomatous cutaneous involvement was demonstrated in 65 (15.3%) of 425 patients with systemic sarcoidosis. In 14 (22%) of the 65 patients, the cutaneous biopsy specimen showed foreign particles in polarized light. The skin lesions corresponded to 3 different clinical patterns: an admixture of papules and infiltration of previously undetected minute scars (n = 6); scar sarcoidosis (n = 4); and subcutaneous nodules (n = 4). The lesions were located most frequently in the extremities, involving the knees in 10 patients. CONCLUSIONS: The presence of polarizable foreign body material in granulomatous cutaneous lesions is not infrequent in patients with systemic sarcoidosis. Inoculation of foreign matter from a previous inapparent minor trauma may induce granuloma formation in individuals with sarcoidosis.
Authors: Todor I Todorov; Erik de Bakker; Diane Smith; Lisette C Langenberg; Linda A Murakata; Mark H H Kramer; Jose A Centeno; Prabath W B Nanayakkara Journal: Int J Environ Res Public Health Date: 2021-04-24 Impact factor: 3.390