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Papular mucinosis is a rare skin disease. Localized and disseminated cases are called papular mucinosis or lichen myxedematosus while generalized, confluent papular forms with sclerosis are called scleromyxedema. Frequently, all three forms are regarded as papular mucinosis. However, some authors restrict it to only mild cases. Another form, acral persistent papular mucinosis is regarded as a separate entity.
A blue nevus is a type of coloured mole, typically a single well-defined blue-black bump.
Lupus erythematosus is a collection of autoimmune diseases in which the human immune system becomes hyperactive and attacks healthy tissues. Symptoms of these diseases can affect many different body systems, including joints, skin, kidneys, blood cells, heart, and lungs. The most common and most severe form is systemic lupus erythematosus.
Alopecia mucinosa is a skin disorder that generally presents, but not exclusively, as erythematous plaques or flat patches without hair primarily on the scalp, neck and face. This can also be present on the body as a follicular mucinosis and may represent a systemic disease.
Lichen myxedematosus is a group of cutaneous disorders considered mucinoses. Conditions included in this group are:
Mucinoses are a group of cutaneous diseases caused by fibroblasts producing abnormally large amounts of acid mucopolysaccharides, usually hyaluronic acid.
Discrete papular lichen myxedematosus is a skin condition caused by fibroblasts producing abnormally large amounts of mucopolysaccharides characterized by the occurrence of waxy, flesh-colored papules.
Acral persistent papular mucinosis is a skin condition caused by fibroblasts producing abnormally large amounts of mucopolysaccharides, characterized by bilaterally symmetrical, flesh-colored papules localized to the hands and wrists.
Self-healing papular mucinosis is a skin condition caused by fibroblasts producing abnormally large amounts of mucopolysaccharides, and may present in adult and juvenile forms. The juvenile variant is also called self-healing juvenile cutaneous mucinosis.
Papular mucinosis of infancy is a skin condition caused by fibroblasts producing abnormally large amounts of mucopolysaccharides, characterized by skin-colored or translucent papules.
Cutaneous focal mucinosis is a skin condition characterized by a solitary nodule or papule.
Plummer's nail is a clinical sign in which there is onycholysis, or separation of the nail from the nail bed, particularly affecting the ring and little fingers. It occurs in patients with thyrotoxicosis. About 5% of hyperthyroid patients display abnormal nail changes. Plummer's nail is also associated with psoriasis, traumatic injury, and allergic contact dermatitis.
Paraneoplastic acrokeratosis, or Bazex syndrome is a cutaneous condition characterized by psoriasiform changes of hands, feet, ears, and nose, with involvement of the nails and periungual tissues being characteristic and indistinguishable from psoriatic nails. The condition is associated with carcinomas of the upper aerodigestive tract.
Cutaneous lymphoid hyperplasia refers to a groups of benign cutaneous disorders characterized by collections of lymphocytes, macrophages, and dendritic cells in the skin. Conditions included in this groups are:
A myxoid cyst is a cutaneous condition often characterized by nail plate depression and grooves.
Stiff skin syndrome is a cutaneous condition characterized by ‘rock hard’ induration, thickening of the skin and subcutaneous tissues, limited joint mobility, and mild hypertrichosis in infancy or early childhood. Immunologic abnormalities or vascular hyperactivity are not present in patients.
Nodular lichen myxedematosus is a cutaneous condition characterized by multiple nodules on the limbs and trunk, with a mild or absent papular component.
Cutaneous lupus mucinosis is a cutaneous condition characterized by lesions that present as asymptomatic skin-colored, at times reddish, 0.5–2 cm papules and nodules.
Perifollicular mucinosis is a cutaneous condition characterized by mucinosis, and described in HIV-infected patients. It is usually found in adults and rarely seen in children. It can have many causes.
References
- ↑ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. p. 620. ISBN 978-1-4160-2999-1.
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