MedGen

Any manifestation of a skin disease associated with the production of pus. [from HPO]

Pyogenic sterile arthritis, pyoderma gangrenosum, and acne (PAPA) is a rare autosomal dominant autoinflammatory disease that typically presents with recurrent sterile, erosive arthritis in childhood, occurring spontaneously or after minor trauma, occasionally resulting in significant joint destruction. By puberty, joint symptoms tend to subside and cutaneous symptoms predominate, including pathergy, frequently with abscesses at the sites of injections, severe cystic acne, and recurrent nonhealing sterile ulcers, often diagnosed as pyoderma gangrenosum (summary by Demidowich et al., 2012). [from OMIM]

A rare subtype of pyoderma gangrenosum characterized by multiple painful, sterile pustules with a surrounding erythematous halo, predominantly occurring on the trunk and extensor surfaces of the limbs, and potentially persisting for months. Histopathology shows a dermal neutrophilic infiltrate and subcorneal neutrophilic micropustules. The condition is commonly associated with inflammatory bowel disease. [from ORDO]

A rare subtype of pyoderma gangrenosum disease characterized by rapidly progressive, single or multiple, painful, aseptic ulcers which present overhanging, violaceous and undermined borders, surrounding induration and erythema, and granulation tissue (occasionally necrotic tissue and/or a purulent exudate) at the base, mainly affecting the legs (but other body surfaces may also be involved), leading to chronic ulcerations and often regressing with cribriform mutilating scars. The disease presents a chronic relapsing course and systemic features (e.g. fever, malaise, arthralgia, myalgia) may be associated. [from ORDO]

A rare subtype of pyoderma gangrenosum disease characterized by a solitary, erythematous, ulcerated plaque, which lacks the violaceous border typically present in classic pyoderma gangrenosum, usually affecting individuals who are otherwise healthy. Histologically, the lesion presents a central layer containing neutrophilic inflamation, surrounded by a palisade of histiocytes, which are rimmed by a lymphocytic infiltrate. In comparison with the other variants of pyoderma gangrenosum, this subtype usually shows a good response to less aggressive treatments and underlying systemic disorders are less frequently associated. It is considered the most benign and uncommon clinical variant of pyoderma gangrenosum. [from ORDO]

A rare skin disease belonging to the spectrum of autoinflammatory syndromes with the triad of pyoderma gangrenosum (PG), suppurative hidradenitis (SH) and acne. [from SNOMEDCT_US]

A rare subtype of pyoderma gangrenosum disease characterized by grouped vesicles that rapidly spread and coalesce to form large bullae, which evolve into ulcerations that have an erythematous peripheral halo and central necrosis, mainly affecting the upper limbs and face. Lymphoproliferative diseases are frequently associated, thus prognosis is often compromised. [from ORDO]

A deep skin ulcer with a well defined border, which is usually violet or blue. The ulcer edge is often undermined (worn and damaged) and the surrounding skin is erythematous and indurated. The ulcer often starts as a small papule or collection of papules, which break down to form small ulcers with a so called cat's paw appearance. These coalesce and the central area then undergoes necrosis to form a single ulcer. [from HPO]

Hereditary polymorphic light eruption is a form of photosensitivity found in the American Indians of the central plains of Canada and the United States and in the Indians of Central and South America. The disorder has also been called familial actinic prurigo, solar dermatitis, and hydroa aestivale. In northern latitudes, skin lesions appear on exposed areas early in spring, become severe during the summer, and abate in the fall. Usually the disorder appears in childhood with eczematous crusted eruptions on the face and arms. Fissured, crusted exudative cheilitis develops on the lips, especially the lower lip. The dorsum of the hands, the laterodorsal aspects of the forearms, and the lower half of the arms often show excoriated papular and nodular lesions. Children frequently have complicating pyoderma. Adults usually exhibit an erythematous plaquelike eruption on the face and other exposed areas. The disease is more severe in children than in adults. Glomerulonephritis can follow streptococcal pyoderma (summary by Fusaro and Johnson, 1980). [from OMIM]

An ulcerative pyoderma usually caused by group A beta-hemolytic streptococcal infection at the site of minor trauma. (Dorland, 27th ed) [from MONDO]

A rare autoinflammatory syndrome characterized by a chronic-relapsing course of the combination of pyogenic arthritis, pyoderma gangrenosum, acne, and hidradenitis suppurativa (which, in addition to axillae and inguinal folds, can be observed on the face, neck, scalp, back, and buttocks, among others). Typical age of onset is adolescence to young adulthood, with the different signs and symptoms appearing simultaneously or subsequently. [from MONDO]

A rare genetic syndrome with a combination of autoinflammation, immunodeficiency and neutrophil dysfunction, as well as mild bleeding diathesis. Patients present with recurrent attacks of abdominal pain, high fever, and systemic inflammation lasting four to five days and occurring every few weeks. Attacks may be accompanied by nailbed, tongue, submandibular and gluteal abscesses, intra-abdominal granulomas, pyoderma gangrenosum and buccal ulcerations. Frequent episodes of purulent paronychia, superficial skin and mucosal infections and purulent upper respiratory tract infections have also been reported. [from SNOMEDCT_US]

X-linked agammaglobulinemia (XLA) is characterized by recurrent bacterial infections in affected males in the first two years of life. Recurrent otitis is the most common infection prior to diagnosis. Conjunctivitis, sinopulmonary infections, diarrhea, and skin infections are also frequently seen. Approximately 60% of individuals with XLA are recognized as having immunodeficiency when they develop a severe, life-threatening infection such as pneumonia, empyema, meningitis, sepsis, cellulitis, or septic arthritis. S pneumoniae and H influenzae are the most common organisms found prior to diagnosis and may continue to cause sinusitis and otitis after diagnosis and the initiation of gammaglobulin substitution therapy. Severe, difficult-to-treat enteroviral infections (often manifest as dermatomyositis or chronic meningoencephalitis) can be prevented by this treatment. The prognosis for individuals with XLA has improved markedly in the last 25 years as a result of earlier diagnosis, the development of preparations of gammaglobulin that allow normal concentrations of serum IgG to be achieved, and more liberal use of antibiotics. [from GeneReviews]

IGHD3 is characterized by agammaglobulinemia and markedly reduced numbers of B cells, short stature, delayed bone age, and good response to treatment with growth hormone (summary by Conley et al., 1991). For general phenotypic information and a discussion of genetic heterogeneity of IGHD, see 262400. [from OMIM]

An autosomal recessive condition caused by mutation(s) in the IL10RA gene, encoding interleukin-10 receptor subunit alpha. It is characterized by early-onset chronic relapsing intestinal inflammation. [from NCI]

T-cell immunodeficiency with thymic aplasia (TIDTA) is an autosomal recessive disorder that is often detected at birth through newborn SCID screening with the finding of decreased T-cell receptor excision circles (TRECs). Affected individuals have selective hypo- or aplasia of the thymus, which results in T-cell immunodeficiency due to impaired T-cell development and increased susceptibility to viral infections. The phenotype is similar to T-/B+/NK+ SCID. Some patients may die in childhood; thymus transplantation may be curative (summary by Du et al., 2019). [from OMIM]

A chronic skin condition involving the inflammation of the apocrine sweat glands, forming pimple-like bumps known as abscesses. [from HPO]