Iris mammillations are diffuse, tiny, nodules that cover the iris surface. They are most commonly unilateral and are usually seen in darkly pigmented irides or overlying iris nevi. Mammillations can be associated with oculodermal melanocytosis or phakomatosis pigmentovascularis (PPV) type IIb and neurofibromatosis (NF) type I.

Title: Atlas Entry - Iris mammillations Author: brettjohnson Created Date: 8/20/2019 10:02:42 AM

Lisch nodules are melanocytic hamartomas of the iris, often associated with neurofibromatosis (NF) I. They are usually elevated and tan in appearance. Their incidence in NF1 increases with age and their prevalence raises by about 10% per year of life, up to age 9.

2018年7月20日 · Cogan-Reese syndrome is unique among the ICE syndromes due to the presence of pedunculated, pigmented iris nodules, commonly referred to as iris nevi [1]. The classic Cogan-Reese nodules, which result from melanocytic proliferation within the iris stroma, are present on the anterior surface of the iris, appear late in the disease, and become ...

2013年3月25日 · Iris cysts can look dark on slitlamp exam but usually light up on transillumination due to the fluid in the cyst. Nevi do not extend beyond what you see and sometimes they are on the posterior iris and not visible from a front slitlamp exam. Often times an iris tumor will have extension into the sclera.

2005年2月21日 · Iris Melanoma. The iris is an uncommon primary location for melanoma. Within uveal tissue, the most common locations for melanoma are (in descending order): choroid, ciliary body, and iris. Iris melanomas comprise 3-12% of uveal melanomas. The annual incidence is approximately 1/million. Risk factors include Caucasian race and light iris color.

2013年6月3日 · More definitive mechanical devices such as iris hooks or Malyugin rings are very useful when operating on small pupils, especially in the setting of prior tamsulosin use. Iris hooks ensure a relatively stable surgical field. Initially, four iris retractors were inserted to create a square-shaped pupil from the surgeon's perspective.

Iris and Scleral Tumors. Transillumination the globe allows you to see the extent and borders of an anterior located tumor. Often a surgical procedure can be planned after visualizing the extent of the tumor borders. A big concern is if the tumor is in the cilliary body and would include the iris.

2008年2月8日 · Pigmented nevus of iris" An iris nevus results from an increased number of atypical but benign-appearing melanocytes, i.e., nevus cells with variable pigmentation. An iris nevus has a low malignant potential." - from Yanoff and …

2010年1月15日 · Iris melanomas represent 3-10% of uveal melanomas.(1) Clinically, small malignant melanomas of the iris can be very difficult to differentiate from benign iris nevi. They can range in appearance from off-white to dark brown. Usually iris melanomas are asymptomatic and are noticed by eye care specialists on routine examination.