Purpuric eruptions are classified by size into three broad categories.

It causes a characteristic purpuric rash and an increased tendency to bleed.

"Petechiae" refers to one of the three major classes of purpuric skin conditions.

There is concern that creatine might cause a skin condition called pigmented purpuric dermatosis in some people.

As they progress, lesions develop a sharp border and become petechial, then hard and purpuric.

Nodules are discrete, generally symmetric, hyperpigmented or purpuric, and firm.

Further to this, specific dyes within this group have also been shown to induce purpuric contact dermatitis.

Also known as progressive pigmented purpuric dermatitis.

Petechiae is generally used to refer to the smallest of the three classes of purpuric skin eruptions, those that measure less than 3 mm.

Pigmented purpuric dermatosis are distinguished from other purpura by size (0.3-1 cm) and are most often seen in the lower extremities.

It may occur in the lungs as pulmonary capillaritis, or in the skin as pigmented purpuric dermatosis.

Schamberg's disease, or progressive pigmented purpuric dermatitis, is a chronic discoloration of the skin which usually affects the legs and often spreads slowly.

Patients with meningococcal bloodstream infection (i.e., sepsis) may present with fever and a petechial or purpuric rash.

Gougerot-Blum syndrome (Pigmented purpuric lichenoid dermatitis)

Purpuric agave dermatitis is a skin condition caused by Agave americana, a large, thick, long-leaved, subtropical plant.

HSP presents with a characteristic purpuric skin rash, arthritis, and abdominal pain and occurs more commonly in young adults (16-35 yrs old).

Soon a rash appears; first macular, not much different from the rose spots of typhoid, and rapidly becoming petechial and purpuric with a dusky gray color.

In Langerhans cell histiocytosis, lesions initially are erythematous, purpuric papules and they then become scaly, crusted and sometimes confluent.

Chorney JA, Cohen J. Pigmented purpuric dermatosis associated with creatine supplementation (letter).

There may be overlapping characteristics among pigmented purpuric dermatosis and between their signs and those of other purpuric eruptions.

Many other forms of cutaneous lesions have been reported also; they may include Scarlatiniform, popular, urticariform, multiform-like erythema, and purpuric lesions, even micropustules were reported.

Gianotti-Crosti syndrome (papular acrodermatitis), urticaria, macular rash, or purpuric lesions may be seen in acute HBV infection.

At this time, young children between the ages of 3 months and 10 years were contracting a strange illness which was characterized by high fever and purpuric lesions on the body.

Meningococcal septicaemia typically causes a purpuric rash that does not lose its color when pressed with a glass ("non-blanching") and does not cause the classical symptoms of meningitis.

Brazilian purpuric fever (BPF) is an illness of children caused by the bacterium Haemophilus influenzae biogroup aegyptius which is ultimately fatal due to sepsis.