|Year : 2016 | Volume
| Issue : 5 | Page : 399-401
Ofuji's disease in an immunocompetent patient successfully treated with dapsone
Gopikrishnan Anjaneyan1, Sindhura Manne1, Vinitha Varghese Panicker1, Malini Eapen2
1 Department of Dermatology, Amrita Institute of Medical Sciences and Research Centre, Kochi, Kerala, India
2 Department of Pathology, Amrita Institute of Medical Sciences and Research Centre, Kochi, Kerala, India
|Date of Web Publication||14-Sep-2016|
Dr. Gopikrishnan Anjaneyan
Department of Dermatology, Amrita Institute of Medical, Sciences and Research Centre, Ponekkara, Kochi - 682 041, Kerala
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Eosinophilic pustular folliculitis or Ofuji's disease is a non-infectious eosinophilic infiltration of hair follicles, which usually presents with itchy papules and pustules in a circinate configuration. We report this case of an immunocompetent patient with erythematous papules and plaques without macropustules diagnosed as eosinophilic pustular folliculitis—a rarely reported entity outside Japan. He was successfully treated with oral dapsone.
Keywords: Dapsone, eosinophilic pustular folliculitis, Ofuji's disease
|How to cite this article:|
Anjaneyan G, Manne S, Panicker VV, Eapen M. Ofuji's disease in an immunocompetent patient successfully treated with dapsone. Indian Dermatol Online J 2016;7:399-401
|How to cite this URL:|
Anjaneyan G, Manne S, Panicker VV, Eapen M. Ofuji's disease in an immunocompetent patient successfully treated with dapsone. Indian Dermatol Online J [serial online] 2016 [cited 2021 Oct 23];7:399-401. Available from: https://www.idoj.in/text.asp?2016/7/5/399/190497
| Introduction|| |
Eosinophilic pustular folliculitis (EPF), or Ofuji's disease, is a rare idiopathic pruritic papulopustular dermatosis. It was first described in 1970 from Japan by Ofuji et al. as a distinct but rare disorder in otherwise healthy people.,
Classical EPF is characterized by (1) recurrent crops of sterile pruritic follicular papulopustules occurring usually on the face and trunk; (2) peripheral extension of the lesions with central clearing; (3) resolution with residual pigmentation; (4) absence of systemic symptoms; (5) chronicity; (6) subsequent appearance of new lesions in the areas of pigmentation; and (7) peripheral eosinophilia.
This disease has rarely been reported from India ; this maybe because of its rarity or it may have been overlooked or underdiagnosed. We report a case of EPF in an HIV-negative individual who was successfully treated with dapsone.
| Case Report|| |
A 47-year-old male agriculturalist presented to our dermatology outpatient department with complaints of itchy reddish raised lesions over the forearms; progressively involving the trunk, lower limbs, and face over the last 7 months. There was no mucosal involvement or other systemic manifestations. He had history of atopic eczema in childhood. He gave a history of drug reaction to ibuprofen and diclofenac. He had been treated by a general practitioner with oral antihistamines and topical steroids with no improvement.
On examination, there were multiple well-defined, erythematous, follicle-based papules with minimal scaling, some of which were coalescing to form plaques distributed over the chest, back, lower limbs, and face [Figure 1]. There were no pustules, but a few excoriations were present. There was no lymphadenopathy.
Blood investigations showed peripheral eosinophilia with 25% eosinophils (normal < 6%) on differential WBC count. Absolute eosinophil count was 2990/mcL (normal <350 cells/mcL). His serum IgE level was 1873 IU/ml (normal <100 IU/ml). VDRL test and KOH fungal smear were negative. Renal function test, liver function test, urine routine examination, erythrocyte sedimentation rate, and antinuclear antibodies were normal.
Lesional skin biopsy showed broad acanthosis with orthokeratosis with a perivascular, perineural, and periappendageal infiltrate of eosinophils and lymphocytes in the dermis. Epidermis showed mild spongiosis but micropustules containing neutrophils/eosinophils were not seen. Follicles showed reticular degeneration with exocytosis of eosinophils and lymphocytes into the follicular epithelium [Figure 2]a and [Figure 2]b. Special stains done with periodic acid Schiff (PAS), Alcian blue, and Congo red was unremarkable. Direct immunofluorescence studies for IgG, IgM, IgA, and C3 were all negative.
|Figure 2: (a) Skin biopsy showing perifollicular inflammation with predominant eosinophilic infiltrate (H and E, ×100). (b) Follicular reticular degeneration with eosinophilic and lymphocytic exocytosis (H and E, ×400)|
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In view of the clinical findings and investigations, a diagnosis of EPF was made. With this diagnosis a serological test for HIV was sent and he was found to be HIV negative.
As the patient was allergic to NSAIDs, indomethacin could not be started. We treated him with dapsone 100 mg once a day and excellent response was seen within 2 weeks [Figure 3].
|Figure 3: Resolution of the lesions following 2 weeks of dapsone therapy|
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| Discussion|| |
Eosinophilic pustular folliculitis is a rare disease characterized by the presence of itchy papules and pustules in a circinate configuration. This has been reported mainly in Japanese population.
Three different subtypes of EPF have been described: (1) Classic EPF, (2) immunosuppression-associated EPF (mostly HIV-related or in patients who have received a bone marrow transplant), and (3) childhood EPF.
Classic EPF presents usually in the third and fourth decade of life. The lesions in this type are characterized by recurrent outbreaks of sterile follicular pustules and papules forming circinate plaques with centrifugal progression. The distribution of classic EPF lesions is on face (85%), back, trunk (59%), and other seborrheic areas. Lesions can also occur on the extremities, palms, and soles, despite the fact that follicles are absent in palms and soles. Pruritus is present in about 40%–50% of cases, and leukocytosis and eosinophilia have been reported in up to 35%. In our case, typical circinate lesions were observed with sparing of palms and soles. Another interesting feature in our case was the absence of pustules. Uchiyama et al. have previously reported a series of three cases where macroscopic pustules were absent.
Immunosuppression-associated EPF displays recurrent, pruritic, erythematous, or urticarial follicular papules located on the upper body associated with severe itching. The clinical presentation differs considerably from classic EPF in that neither large pustules nor figurate lesions are observed and the individual lesions are more chronic and persistent.
In childhood type, the lesions are crusted papulopustules associated with severe pruritus and are predominantly distributed over the scalp.
Etiology of the disease is still unknown. Different hypotheses have been postulated including drug hypersensitivity (to carbamazepine, minocycline, or allopurinol), infections (e.g., Demodex folliculorum, dermatophytes, Pseudomonas aeruginosa, and larva migrans), and immunological alterations, which induce a secretion of eosinophilic chemotactic and activation factors. Pathogenesis of this disease remains elusive. The probable mechanism by which eosinophils infiltrate the pilosebaceous units has not yet been established. Recent studies have hypothesized that prostaglandin D2 (PGD2)/PGJ2-peroxisome proliferator-activated receptor gamma pathway may be involved in the pathogenesis. PGD2 induces sebocytes to produce eotaxin-3, which is a chemoattractant for eosinophils, which may explain the massive eosinophil infiltrates observed around the pilosebaceous units in EPF.
Histopathology has a key role in diagnosing classical type EPF. The features are perifollicular eosinophil infiltrate, infundibular spongiosis, and eosinophilic and neutrophilic micropustules. In the dermis, an inflammatory infiltrate of lymphocytes, eosinophils, and neutrophils may be observed. Differential diagnosis to be considered are fungal and viral folliculitis, dermatophyte infections, papular urticaria, urticarial vasculitis, secondary syphilis, or seborrheic dermatitis. Histologically, differential diagnosis includes various conditions classified under the term “eosinophilic dermatoses,” that is, arthropod bite reactions, drug-related skin reactions, parasitic infections, demodex folliculitis, angiolymphoid hyperplasia with eosinophilia, and eosinophilic cellulitis (Well's syndrome).
Different options for management of EPF include topical corticosteroids, indomethacin, dapsone, prednisolone, retinoids, colchicine, itraconazole, cyclosporine, minocycline, PUVA, UVB, and infliximab.,,, The first line of treatment and most effective among the systemic drugs is indomethacin.,,
Indomethacin is an inhibitor of cyclooxygenase and a potent agonist of the PGD2 receptor-chemoattractant homologous receptor expressed on T-helper cells2 (CRTH2). It may exert its therapeutic effect via a reduction of CRTH2 expression as well as inhibiting PGD2 synthesis.
Mechanism of action of dapsone is inhibition of eosinophil peroxidase activity and inhibition of chemoattractant-induced signal transduction. Our patient remained in good health after achieving resolution with dapsone. The absence of immunosuppression probably led to a more benign clinical course.
| Conclusion|| |
This is a case of EPF (Ofuji's disease) with atypical lesions (without pustules) in an immunocompetent individual, where we were unable to determine a clear etiological factor in spite of performing several tests. Another point that we would like to highlight is the excellent response to dapsone. Although indomethacin is considered the firstline oral medication for EPF, our report brings out the efficacy of dapsone in this condition.
This case report highlights the importance of considering this differential diagnosis in a patient with erythematous papular and circinate eruptions.
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Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3]