Some of these additional tests may include a WBC differential, a blood smear review, or in severe conditions, a bone marrow examination. A differential may indicate which type of WBC is low or high while a blood smear and/or bone marrow biopsy can reveal the presence of abnormal and/or immature WBCs. ^ Back to top.
The most common types are dermatomyositis, polymyositis, necrotising autoimmune myopathy and sporadic inclusion body myositis (IBM). Although dermatomyositis affects the skin and muscles, it may also affect other parts of the body such as joints, oesophagus, lungs and heart.
Prevention and early diagnosis are important, for no effective treatment is available. Coal workers' pneumoconiosis, or black lung, usually in the form of bituminosis or anthracosilicosis, is caused by the inhalation of coal dust, often with silica, and is similar in its development and its effects to silicosis.alc pneumoconiosis a type of silicatosis caused by the inhalation of talc; symptoms include shortness of breath, cough, fatigue, weakness, and weight loss.