Non-caseating conjunctival granulomas in patients with multifocal choroiditis and panuveitis

This study describes a group of patients with clinical findings of peripheral punched-out lesions and panuveitis who had non-caseating granulomas found by non-directed conjunctival biopsy.

A series of 10 patients seen at The University of Iowa Hospitals and Clinics between August 1989 and August 1990 with ocular findings similar to those of multifocal choroiditis with panuveitis, including peripheral punched-out chorioretinal lesions, vitritis, and frequently, cystoid macular edema, was examined. All patients underwent ophthalmic examination, ancillary testing, and non-directed conjunctival biopsy.

Of the ten patients, nine were women. Results of FTA-ABS were negative for all patients. A non-directed conjunctival biopsy disclosed non-caseating granulomata in seven of the patients. Acid-fast bacilli were not detected in any specimens. Four of the seven patients with positive biopsy results had either elevated serum angiotensin-converting enzyme levels or chest x-rays consistent with sarcoid. Six of these seven patients were 58 years of age or older.

It is recommended that non-directed conjunctival biopsy specimens be examined to exclude the presence of non-caseating granulomata in uveitis patients with small, inferior, peripheral, punched-out chorioretinal scars, especially in women older than 55 years of age.