What causes panniculitis ?
PANNICULITIS : Panniculitis refers to a group of conditions that involve inflammation of subcutaneous fat. Despite having very diverse causes, most forms of panniculitis have the same clinical appearance. The diagnosis is established by a skin biopsy, as there are characteristic microscopic features depending on the cause. The most common form of panniculitis is erythema nodosum . Panniculitis takes place just under the skin, in the body's fatty layer. Panniculitis can look different depending on its cause or particular situation. Usually, it makes the skin feel hard and become painful and red or darker in some places. Panniculitis is classified as mostly septal panniculitis or mostly lobular panniculitis depending on the site of the most intense microscopic inflammation. Most types of panniculitis have both septal inflammation (early) and lobular inflammation (later). Further classification is based on whether or not there issub...