Rare organ manifestations of sarcoidosis.

We retrospectively analyzed the frequency and clinical characteristics of organs rarely involved with sarcoidosis in a cohort of 1158 sarcoidosis patients cared for over nearly 11 years in a university outpatient sarcoidosis clinic. Data were analyzed from an institution-approved sarcoidosis clinical database containing demographic and clinical characteristics of sarcoidosis outpatients cared for between May 2011 and March 2021 at a university medical center sarcoidosis clinic. The diagnosis of sarcoidosis was established by standard international criteria. Rare organ involvement was defined as an organ not individually listed in the Word Association of Sarcoidosis and Other Granulomatous Disorders Sarcoidosis Organ Assessment Instrument. Twenty-six of the 1158 patients (2.2%) had 27 instances of rare organ involvement. The most common rare organ involved was the GI tract, followed by the testicle and then the female reproductive tract. Only 1 of the 26 patients with rare sarcoidosis organ involvement required therapy for that organ involvement. In comparison with sarcoidosis patients without rare organ involvement, patients with rare organ involvement were more likely to be black, have more total organs involved with sarcoidosis, and more likely require anti-sarcoidosis therapy at some point during the course of their disease. There were no differences between these groups in terms of sex, age at diagnosis, and most recent percent predicted forced vital capacity. Rare sarcoidosis organ involvement occurred in 2.2 percent of this cohort. Although rare organ involvement rarely required treatment, it was associated with more extensive disease that was more likely to require therapy.

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Declaration of competing interest No author has a conflict of interest in terms of publication of this manuscript.