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A painful swelling of blood vessels in the extremities. Painful paroxysmal dilation of the blood vessels of the skin, usually affecting the feet and extremities. A condition in which the fingers or toes, or even larger portions of the limbs, become purple and bloated in appearance, and very painful. In people suffering from the condition…

The formation of red blood cells in red bone marrow.  

A condition in which the skin becomes red and flakes off. A skin condition characterized by redness and scaling over the entire body; also known as exfoliative dermatitis. Erythroderma usually occurs as a complication of another skin disease such as atopic dermatitis, psoriasis, or contact dermatitis. Less commonly, it is a symptom of a systemic…

An increase in the number of red blood cells in the blood. Any abnormal increase in the numbers of red blood cells, but to a lower extent and due to many different conditions (e.g., emphysema, cigarette smoking, living at altitude). Abnormally increased amount of red blood cells in circulation; associated with hypoxemia and polycythemia vera.…

Red and purple patches on the skin of the thighs, often accompanied by chilblains and made worse by cold. Mottled purplish discoloration on the legs and thighs, usually of adolescent girls or fat boys before puberty. The disorder sometimes occurs in older women. The condition is worse in cold weather and there is no satisfactory…

The presence of erythroblasts in the blood, usually found in haemolytic anaemia. The presence in the blood of the nucleated precursors of the red blood cells (erythroblasts). This may occur when there is an increase in the rate of red cell production, as in hemorrhagic or hemolytic anemia, or in infiltrations of the bone marrow…

A cell which forms an erythrocyte or red blood cell. An immature red blood cell characterized by the presence of a nucleus and large size. Usually found in the bone marrow. Nucleated cell passing through maturation stages to become a mature erythrocyte. Erythroblasts are normally found in bone marrow, but they may appear in the…

A blood disorder where the number of red blood cells increases sharply, together with an increase in the number of white cells, making the blood thicker and slower to flow.  

A-bacterial skin infection caused by touching infected fish or meat.  

An inflammatory disease where red swellings appear on the front of the legs. Tender, reddened nodules on the shins, legs, and occasionally other body areas, often accompanied by fever, muscle and joint pain, and malaise; it occurs in certain diseases, as a drug reaction, and in certain allergic reactions. An inflammatory skin condition that is…