1 The results of prophylactic measures for femoral head AVN have considerable variation, but certain generalizations can safely be stated. 2  Namely, the clinical results of core decompression alone deteriorate with more advanced lesions.
1 Melasma is very common skin ailment. It can occur to anyone, but young women with brownish tone are more likely to contract with it.  The condition is often linked with female hormonal changes. Change in level of estrogen and progesterone may cause melasma.
While most moles donât turn into melanoma, researchers are unsure why some do. Like basal and squamous cell skin cancer, melanoma can be caused by UV rays. However, some melanomas can appear in body parts not exposed to sunlight. Both types of skin cancer occur when your skin cellsâ DNA has errors (or mutations). According to the Mayo Clinic, these errors cause skin cells to grow uncontrollably and form a mass of cancer cells.