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Fixed drug eruption due to influenza vaccine.

Two females, one 28 years old and the other 32 years old, developed dusky red macules with pain and a burning sensation within 24 hours of receiving influenza vaccine. One patient had blisters within the lesion. A clinical diagnosis of fixed drug eruption (FDE) due to influenza vaccine was made. Histopathology was consistent with the diagnosis of FDE. The lesions subsided within 2 weeks of topical corticosteroid treatment. The diagnosis was confirmed by topical provocation test with influenza vaccine. A Medline search revealed these cases to be the second report of this kind of reaction due to influenza vaccine.

Adult↗

Intraepidermal localization of the clone in cutaneous T-cell lymphoma.

BACKGROUND: No immunohistologic techniques are currently available to demonstrate clonality of T-cell lymphomas. Monoclonal antibodies to the variable region of the T-cell receptor (TCR) have been produced that identify minor populations of normal peripheral blood T lymphocytes. OBJECTIVE: We investigated the expression of TCR V-region genes in cutaneous lymphomas to determine whether immunostaining with these antibodies may be a simple method to detect clonal T-cell proliferations and help to distinguish benign lymphoid infiltrates from malignant lymphoma. METHODS: Cutaneous samples were obtained from 18 cutaneous T-cell lymphomas (14 mycosis fungoides, 1 Sézary syndrome, 2 pleomorphic T-cell lymphoma, and 1 large cell anaplastic lymphoma) and 8 benign lymphoid infiltrates. Frozen sections were incubated with monoclonal antibodies and stained by the alkaline phosphatase-antialkaline phosphatase technique. Staining was performed with a panel of 7 anti-TCR V-region antibodies, 6 T-cell markers, 1 anti-beta chain antibody, and 1 anti-delta chain antibody. RESULTS: Clonality could be demonstrated in 2 of 18 cutaneous lymphomas. We observed the strictly intraepidermal localization of clonal proliferation in one case of early-stage mycosis fungoides. CONCLUSION: Anti-TCR V-region antibodies may identify a strictly epidermotropic clone in early mycosis fungoides. However, the panel of antibodies currently available stains only a minority of cutaneous T-cell lymphomas. The usefulness of these antibodies as a clonotypic marker needs to be reevaluated when a larger panel of antibodies becomes available.

Adult↗

Graft-versus-host disease after liver transplantation.

We describe a case of graft-versus-host disease that developed in the recipient of an orthotopic liver transplant. A maculopapular eruption developed on postoperative day 25. After the diagnosis of graft-versus-host disease was made aggressive therapy was instituted, which resulted in a complete recovery.

Exanthema↗

The Sweet syndrome in children.

Two children are described with the Sweet syndrome (acute febrile neutrophilic dermatosis), a rare skin disorder usually seen in middle-aged women. Typical features include spiking fever, neutrophilic leukocytosis, raised painful erythematous plaques and nodules reflecting a cutaneous dermal infiltrate composed of polymorphonuclear leukocytes and rapid resolution in response to systemically administered corticosteroid. The eruption is believed to represent a hypersensitivity reaction to antecedent infection or concurrent malignancy.

Child↗

Arthropathy with rash, chronic meningitis, eye lesions, and mental retardation.

Three unrelated children (one girl and two boys) have had since birth a syndrome characterized by a permanent skin rash which becomes more intense during flare-ups associated with fever, lymphadenopathy, splenomegaly, and arthritis symmetrically involving the large joints. In one boy, typical psoriasis was observed at age 3 years. In two patients, roentgenograms of the joints showed early patellar ossification and an abnormal epiphyseal appearance. The three children also had neurologic involvement, with mental retardation, enlarged head circumference, eye lesions, late closure of the anterior fontanel, and a chronic meningitis with infiltration by polymorphonuclear cells. No immunologic abnormalities were found, but polymorphonuclear cells infiltrated the skin, lymph nodes, synovial fluid, and CSF.

Adolescent↗

A diagnostic protocol for evaluating nonimmediate reactions to aminopenicillins.

BACKGROUND: Maculopapular and urticarial rashes are nonimmediate manifestations common during aminopenicillin (AP) treatment, and the former often represent cell-mediated hypersensitivity. OBJECTIVES: We sought to determine the significance and incidence of skin test reactions to APs in adults reporting adverse reactions during therapy with these beta-lactams and, particularly, to evaluate the potential of patch tests, delayed-reading skin tests, and challenges in the diagnosis of nonimmediate reactions. METHODS: We used skin tests with penicilloylpolylysine, minor determinant mixture, benzylpenicillin, ampicillin, and amoxicillin, as well as patch tests with the last 3 drugs. We also performed in vitro assays for specific IgE and challenges with the suspect penicillin in subjects with nonimmediate reactions. RESULTS: Among the 144 patients reporting nonimmediate manifestations (mostly maculopapular rashes), delayed hypersensitivity was diagnosed in 62 on the basis of positive patch test and/or delayed intradermal test results and responses to challenges; negative reactions to challenges allowed us to reasonably exclude the possibility of allergy in 66 subjects, and the challenge confirmed that 1 patient had linear IgA bullous dermatosis. Definitive diagnoses could not be provided for the remaining 15 subjects, who had negative allergologic test results, because they did not consent to challenges. In 40 of 49 immediate reactors, a diagnosis of IgE-mediated hypersensitivity was made. CONCLUSIONS: Both patch and intradermal tests are useful in evaluating nonimmediate reactions to APs. Positive patch test and delayed intradermal responses together indicate delayed hypersensitivity. Intradermal testing appears to be more sensitive than patch testing, but the pattern of positive delayed intradermal test responses and negative patch test responses needs further investigation because of false-positive cases.

Adolescent↗

[Chronic meningococcemia].

INTRODUCTION: Chronic meningococcemia is a rare clinical form of invasive Neisseria meningitidis infection. We report 2 cases. OBSERVATIONS: A 39 year-old man and a 42 year-old woman had developed a widespread, fleeting and painful maculopapular cutaneous eruption over the past few weeks, associated with intermittent fever and inflammatory arthralgia. In both cases blood cultures isolated a serogroup B meningococcus that confirmed the diagnosis. Cutaneous histology revealed a non-specific image of leukocytoclastic vasculitis. Treatment with beta lactamin antibiotics was successful after respectively 3 weeks and 12 days. DISCUSSION: This septicemia is characterized by the clinical triad of cutaneous eruption, fever and arthralgia. It must not be mistaken for connectivitis because inappropriate corticosteroid prescription may provoke severe complications. Confirmation of the diagnosis is provided by the blood cultures, which should be repeated. In the case of strong clinical suspicion, the rapid improvement with antibiotics confirms the diagnosis.

Adult↗

Tilorone hydrochloride in the treatment of T cell lymphoproliferative cutaneous disease.

Tilorone hydrochloride was used to treat eleven patients with T cell cutaneous disease ranging from pre-Sézary syndrome to tumor-stage mycosis fungoides. Cutaneous histologic study, Sézary counts, delayed skin tests, patch tests, and quantitative T cell counts were monitored. The study revealed that the response to tilorone depends in part on the type and stage of disease, as well as the characteristics and responsiveness of the individual lymphocyte population. Patients with pre-Sézary syndrome are most likely to benefit from tilorone. The effect of tilorone on the T cell population is manifested by changes in responses to patch and skin tests, as well as histologic improvement. Intact immune responses and elevated levels of IgE may be important prognostic clinical parameters in these patients. Tilorone is ineffective in patients with mycosis fungoides and advanced Sézary syndrome. Keratopathy can be a limiting but reversible complication of therapy. The drug may provide an effective therapeutic step in the treatment of early T cell cutaneous disease or an adjunctive therapy to leukapheresis and chemotherapy.

Adult↗

Psoralens and ultraviolet A therapy of pityriasis lichenoides.

Three patients with long-standing pityriasis lichenoides, which was resistant to other forms of therapy, were successfully treated with PUVA (psoralens and ultraviolet light of wavelength A). One patient had complete clearing of all lesions, and the other two had marked improvement. PUVA is being used to treat increasing numbers of patients with pityriasis lichenoides, and the results have been very good.

Adult↗

Monoclonal antibodies and cutaneous T cell lymphoma. Theoretical and practical considerations.

The T cell nature of mycosis fungoides and Sézary syndrome was established a decade ago. The recent advent of monoclonal antibodies to T cells and other lymphoid subpopulations has resulted in an explosion of knowledge on the biology of this group of disorders. These reagents have increased our knowledge on thymic differentiation status, pathogenesis, the phenotype of premalignant vs malignant lymphocytic infiltrates, the identification of other previously unrecognized cells within lymphomas, and the phenotype of circulating vs skin lymphocytes. Therapeutic applications may result. These new developments are discussed.

Animals↗

Immunohistology of pityriasis lichenoides et varioliformis acuta and pityriasis lichenoides chronica. Evidence for their interrelationship with lymphomatoid papulosis.

Pityriasis lichenoides et varioliformis acuta and pityriasis lichenoides chronica are idiopathic, papular eruptions that exhibit certain clinicopathologic similarities to each other and to lymphomatoid papulosis. In order to determine if these disorders are also similar immunologically, we studied the immunopathology of five biopsy specimens from three cases of pityriasis lichenoides et varioliformis acuta and three biopsy specimens from three cases of pityriasis lichenoides chronica. We then compared them to our prior immunohistologic study of nine cases of lymphomatoid papulosis. Pityriasis lichenoides et varioliformis acuta and pityriasis lichenoides chronica both exhibited a dermal and epidermal infiltrate of CD4+ and CD8+ T cells expressing activation antigens. These were admixed with numerous macrophages. The lesional epidermis was diffusely human lymphocyte antigen (HLA)-DR+ and contained decreased CD1+ dendritic cells. Endothelial cells were also HLA-DR+. Cells bearing the phenotypes of B cells, follicular dendritic cells, or natural killer/killer cells were essentially absent. Except for the lack of large atypical cells, the results resembled those described previously for lymphomatoid papulosis. These findings indicate that pityriasis lichenoides chronica, pityriasis lichenoides et varioliformis acuta, and lymphomatoid papulosis share several immunohistologic features. Together with certain clinicopathologic similarities, they are consistent with the hypothesis that these three disorders are interrelated.

Acute Disease↗

The aetiology of maculopapular rash diseases in Niterói, State of Rio de Janeiro, Brazil: implications for measles surveillance.

A study investigating the causes of rash diseases using systematic laboratory testing was conducted in Niterói, Rio de Janeiro, between January 1994 to April 1998. Sera from 327 patients were tested for evidence of anti-rubella virus, measles virus, human parvovirus B19 and dengue fever virus specific immunoglobulin IgM and anti-human herpes virus type 6 (HHV-6) IgG antibodies. A laboratory confirmed diagnosis was achieved in 71.3% of the cases investigated: dengue fever (33.0%), rubella (20.2%), parvovirus B19 (9.2%), measles (6.7%) and HHV-6 (2.1%). No diagnosis was established for 94 cases (28.7%). An outbreak of measles was detected during 1997, with a peak in September and October. All of the diseases studied here presented with clinical features similar to measles and classical symptoms were found in all measles confirmed cases. The large overlap of combinations of signs and symptoms seen in this study highlights the difficulties of diagnosing a rash illness on clinical grounds alone.

Adolescent↗

Angioedema and maculopapular eruptions associated with carbamazepine administration.

Cutaneous rashes and eruptions can be caused by many medications, including carbamazepine. The presentation can be varied depending on severity. Cutaneous eruptions occur in 3% of individuals administered carbamazepine. Angioedema, a rare side effect of carbamazepine, involves vascular leakage in dermis and subcutis mediated by immunoglobulin E and/or bradykinins. Angioedema is more common in females and in the third decade of life. We report the case of a 27-year-old Indian woman who developed maculopapular rash and angioedema secondary to carbamazepine administration. The patient responded successfully to withdrawal of the drug and treatment with antihistamines. Due to the potentially life-threatening complications of this condition and the increasing use of anticonvulsants in the treatment of mood disorders, psychiatrists must be aware of the diagnosis and treatment of this condition.

Adult↗