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Livedo reticularis is a common skin finding consisting of a mottled reticulated vascular pattern that appears as a lace-like purplish discoloration of the skin. [1] The discoloration is caused by reduction in blood flow through the arterioles that supply the cutaneous capillaries, resulting in deoxygenated blood showing as blue discoloration ().
Patients with reticular erythematous mucinosis have also been reported to have other conditions like myxedema, hypothyroidism, Hashimoto's thyroiditis, monoclonal gammopathy, and HIV infection. [7] [8] Menstruation, heat, x-ray therapy, oral contraceptives, pregnancy, and perspiration can all induce or worsen reticular erythematous mucinosis. [9]
Confluent erythematous and edematous patches on cheeks ("slapped cheek") for 1-4 days followed by a "lacy," reticular, erythematous rash on the body. Roseola infantum (exanthem subitum) "sixth disease" HHV-6 and HHV-7: Rapid onset of erythematous, blanching macules and papules surrounded by white halos on the trunk after 3-5 days of high fever.
Cutis marmorata telangiectatica congenita (CMTC) is a rare congenital vascular disorder that usually manifests in affecting the blood vessels of the skin. The condition was first recognized and described in 1922 by Cato van Lohuizen, [2] a Dutch pediatrician whose name was later adopted in the other common name used to describe the condition – Van Lohuizen syndrome.
[19] [20] Clinically, the diagnosis of any particular skin condition is made by gathering pertinent information regarding the presenting skin lesion(s), including the location (such as arms, head, legs), symptoms (pruritus, pain), duration (acute or chronic), arrangement (solitary, generalized, annular, linear), morphology (macules, papules ...
Europe and other parts of the world use the ICD-10. The root codes for ICD-10 and ICD-10-CM are the same, making it helpful for locating codes for general body systems and disease processes. [2] [3] In ICD-11 the search and coding of any disease, including rare ones is done via the ICD-11 website. [4]
Mucinoses are a group of cutaneous diseases caused by fibroblasts producing abnormally large amounts of acid mucopolysaccharides (i.e. mucin), usually hyaluronic acid. [1]: 183
The branching may only be seen at the edge of one or two lesions but is still the clue to this diagnosis and a potentially serious underlying condition. [2] Inflammatory retiform purpura consists of redness around the lesion with associated central necrosis caused by vasculitic or infectious processes.