Monilethrix Overview Monilethrix is a rare genetic hair disorder characterized by a distinctive "beaded" appearance of the hair shaft, extreme fragility, and sparse hair growth (hypotrichosis). Monilethrix is a rare inherited disorder characterized by sparse, dry, and/or brittle hair that often breaks before reaching more than a few inches in length. The hair may lack luster, and there may be patchy areas of hair loss (alopecia). Another common symptom may be the appearance of elevated spots (papules) surrounding the hair follicles that may be covered with gray or brown crusts or scales (perifollicular hyperkeratosis). When viewed under a microscope, the hair shaft resembles a string of evenly-spaced beads. In most cases, monilethrix is inherited as an autosomal dominant trait. Symptoms In most cases of monilethrix, the hair is normal at birth; it may then be slowly replaced by abnormal hair during the first few months to two years of life. In some rare cases, the hair may be...
Gray platelet syndrome Overview Gray platelet syndrome gets its name from how the platelets in people with this condition appear under a microscope. Platelets are specialized blood cells that allow your blood to clot and stop bleeding. Many conditions can cause blood clotting problems that range from mild to life threatening. Gray platelet syndrome tends to cause mild to moderate bleeding. It usually doesn’t affect life span but can lead to serious complications for some people, such as spleen rupture. Read on to learn more about this rare condition, including its causes, symptoms, and treatment options. Gray platelet syndrome causes and risk factors Gray platelet syndrome was first described in medical literature in 1971. It’s an inherited condition, meaning it develops when you receive associated genes from your parents. It’s been linked to mutations in the NBEAL2 gene. NBEAL2 seems to code for the formation of special sacs inside platelets called alpha-granules. Proteins in these sa...