Diktyoma mitotic activity, sarcomatous components, or invasion into the uvea, cornea, or sclera. Most diktyomas are malignant. The most common symptoms of diktyoma are vision loss and pain, while the most common signs are leukocoria and presence of a mass in the iris or ciliary body. Other signs and symptoms include lens subluxation, glaucoma, cataract, exophthalmos, buphthalmos, strabismus, and ptosis. Imaging studies such as ultrasonography (US), Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI) may aid diagnosis. On ultrasound, diktyomas typically appear as echogenic, irregularly shaped to ovoid masses. Ultrasound is excellent for demonstrating cystic collections of vitreous fluid in the
The Letter U and the Numeral 2 The Letter U and the Numeral 2 The Letter U and the Numeral 2 is a 96-page magazine and 25-minute CD by Negativland detailing their conflict with the band U2, over Negativland's EP of the same name. It was released in 1992 as a limited edition of 4000 copies. Two months after its release, SST Records blocked its distribution with a lawsuit claiming, among other things, copyright infringement based on reproductions of press releases sent to the press by SST; "in essence, suing the band for printing (their) threat to sue the band". SST's lawsuit is similar to the "Streisand