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Pujol RM, de Castro F, Schroeter AL, Su WP. Solitary sclerotic fibroma of the skin: a sclerotic dermatofibroma? Am J Dermatopathol 1996; 18:620-4. [PMID: 8989937 DOI: 10.1097/00000372-199612000-00013] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Two cases of solitary tumors showing well-demarcated hypocellular, dermal fibrocollagenous proliferations are reported. The lesions were composed of hyalinized eosinophilic collagen bundles arranged in the characteristic interwoven pattern with prominent clefts, as described in sclerotic fibroma of the skin. This pattern, although predominant, was not uniform. Some areas showed a more cellular pattern with histopathologic features suggestive of dermatofibroma. In those areas, multiple spindle-shaped cells and occasional multinucleated cells were observed. The collagen bundles did not adopt a whorled pattern, and the overlying epidermis showed mild acanthosis and elongation of the rete ridges. The sclerotic changes were present mainly at the periphery and in the deep areas of the tumor. Our observations confirm the possibility that solitary sclerotic fibroma of the skin may represent, at least in some instances, the later and sclerotic stage of other more cellular neoplasms (specifically dermatofibromas) rather than an individualized neoplasm, as has been recently proposed.
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Su WP, Wu YS, Yang J. Mutual Exclusion Statistics between Quasiparticles in the Fractional Quantum Hall Effect. PHYSICAL REVIEW LETTERS 1996; 77:3423-3426. [PMID: 10062216 DOI: 10.1103/physrevlett.77.3423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lim KK, Su WP, McEvoy MT, Pittelkow MR. Generalized gravis junctional epidermolysis bullosa: case report, laboratory evaluation, and review of recent advances. Mayo Clin Proc 1996; 71:863-8. [PMID: 8790263 DOI: 10.4065/71.9.863] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A full-term infant with junctional epidermolysis bullosa (JEB) is described. The distribution and morphologic characteristics of generalized blistering in areas of pressure in conjunction with perioral and perinasal granulation tissue suggested the diagnosis of generalized gravis (Herlitz) JEB. The family history was consistent with autosomal recessive inheritance. Electron microscopy demonstrated a subepidermal cleft arising in the lamina lucida with hemidesmosomal hypoplasia, findings consistent with gravis JEB. Immunofluorescent antigenic mapping localized laminin and type IV collagen exclusively to the blister base and weak reactivity of bullous pemphigold antigen to both the roof and the base. Type VII collagen (LH 7:2 epitope) was detected solely at the base of the cleavage plane, and abnormal staining of laminin 5 (kalinin, GB3, nicein) and 19-DEJ-1 antigen was observed. The patient died of sepsis at age 3 months. DNA extracted from cultured keratinocytes for molecular genetic analysis demonstrated a mutation with the LAMB3 gene encoding the beta 3 chain of laminin 5. We present the clinical and laboratory findings and briefly review recent advances in the diagnosis and management of JEB.
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Chen KR, Su WP, Pittelkow MR, Conn DL, George T, Leiferman KM. Eosinophilic vasculitis in connective tissue disease. J Am Acad Dermatol 1996; 35:173-82. [PMID: 8708015 DOI: 10.1016/s0190-9622(96)90318-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Neutrophilic and lymphocytic vascular inflammation is common in vasculitis associated with connective tissue disease (CTD). We recently identified eight patients with CTD and eosinophilic vasculitis. OBJECTIVE The purpose of this study was to characterize a variant form of vasculitis in CTD with eosinophilic infiltration. METHODS Of 98 CTD patients with cutaneous necrotizing vasculitis, eight were found with predominantly eosinophilic vascular infiltration. Nine CTD patients with cutaneous neutrophilic vasculitis were identified for comparison. Clinical and laboratory findings were reviewed and compared. Indirect immunofluorescence for eosinophil granule major basic protein (MBP), neutrophil elastase, and mast cell tryptase was performed on lesional tissue. MBP levels and eosinophil survival enhancing activity were assayed in sera from three patients. RESULTS The patients with eosinophilic vasculitis had depressed serum complement levels and peripheral blood eosinophilia; MBP levels were elevated in serum and eosinophil survival was prolonged. Immunofluorescence of tissue showed marked angiocentric eosinophil MBP staining with peripheral neutrophil elastase staining; mast cell tryptase staining was notably absent. The patients with neutrophilic vasculitis were variably hypocomplementemic and did not have peripheral blood eosinophilia. Immunofluorescence showed marked angiocentric neutrophil elastase staining with scattered eosinophil MBP staining; mast cell tryptase staining showed normal mast cell numbers. CONCLUSION Patients with eosinophilic vasculitis, CTD, and hypocomplementemia show vessel wall destruction in association with vessel wall deposition of cytotoxic eosinophil granule MBP, which suggests that eosinophils mediate vascular damage in this disease process. In addition, perivascular mast cells appear diminished, thereby suggesting that mast cell degranulation occurs.
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Potter TS, Sharata HH, Su WP, Hashimoto K. Pedunculated proliferative papillomatosis. Cutis 1996; 57:451-2. [PMID: 8804853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Skin tags (soft fibromas) are benign connective tissue neoplasms of the dermis. As a rule they occur as soft, skin-colored, filiform, often pedunculated growths in intertriginous areas. The classification and naming of these lesions is somewhat arbitrary due to their banal clinical and histological spectrum of characteristics. We report an unusual case of a peculiar proliferation of dermal and epidermal components that clinically and histologically appears to fit into this category of soft fibroma.
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Snow JL, Su WP. Lipomembranous (membranocystic) fat necrosis. Clinicopathologic correlation of 38 cases. Am J Dermatopathol 1996; 18:151-5. [PMID: 8739989 DOI: 10.1097/00000372-199604000-00007] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Clinicopathologic correlation of cutaneous biopsy specimens demonstrating typical lipomembranous fat necrosis was performed. Material from 732 biopsies of various subcutaneous inflammatory disorders seen at our institution in the past 5 years was screened for typical lipomembranous (membranocystic) changes in the panniculus, and 39 specimens from 38 patients with these changes were identified. The most common clinical context in which this condition was observed was in chronic sclerotic plaques of the lower legs associated with venous insufficiency (37% of the total cases). All patients were women, and the majority were obese. Typical lipomembranous fat necrosis was also observed in eight cases (21%) of erythema nodosum, three (8%) of morphea or subcutaneous morphea (or both), two (5%) of lupus panniculitis, two (5%) of necrobiosis lipoidica, and in single cases of polyarteritis nodosa, necrotizing vasculitis, and erysipelas. Six cases (16%) had no definite underlying disease. The mean age of all patients was 57 years (range 32-86 years), and 34 patients (89%) were women. Of the five major categories identified, lipomembranes lining macrocysts and microcysts were most prominent in the venous insufficiency- and morphea-related cases and were much less prominent in erythema nodosum, lupus panniculitis, and necrobiosis lipoidica, which generally showed histopathologic findings typical of these disorders. In addition to lining the macrocystic and microcystic cavities formed in the fat lobules, lipomembranes were prominent in areas of septal fibrosis in all cases associated with morphea and necrobiosis lipoidica and in 35% and 25% of venous insufficiency- and erythema nodosum-related cases, respectively. In lupus panniculitis, lipomembranes were most prominent in areas of hyaline necrosis. We conclude that lipomembranous fat necrosis is most likely a nonspecific form of ischemic fat degeneration that may be induced by various clinical entities. This change is most often seen in venous insufficiency-associated chronic sclerotic plaques typically observed in middle-aged obese women, and we propose the term stasis-associated lipomembranous panniculitis (SALP) to describe this most common form of lipomembranous fat necrosis.
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Abstract
Pyoderma gangrenosum (PG) has four distinctive clinical and histologic variants. Some have morphologic and histologic overlapping features with other reactive neutrophilic skin conditions. PG often occurs in association with a systemic disease, and the specific clinical features of the skin lesion may provide a clue to the associated disease. Management of PG depends on its type and severity and usually requires aggressive local and systemic treatment.
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Abstract
Three cases of nodular-cystic fat necrosis presenting with focal lipomembranous changes are reported. The lesions consisted of solitary (cases 1 and 3) or multiple (case 2) subcutaneous nodules on the upper (case 1) or lower (cases 2 and 3) extremities which had evolved over weeks to years. At surgical excision, solitary or multiple, freely mobile nodules within a cystic cavity were observed. Histologically, encapsulated fat nodules showing variable amounts of necrosis without marked inflammatory changes were present. Focal lipomembranous changes were observed in some nodules. Our observations seem to support the concept that lipomembranous changes are nonspecific and uncommon patterns of fat necrosis caused by a wide variety of local or systemic events that may cause a compromise in the blood supply of the subcutaneous tissue.
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Abstract
OBJECTIVE To classify and describe morphea (localized scleroderma). DESIGN A review of morphea and its subtypes is presented. RESULTS The current classification of morphea is incomplete and confusing. As knowledge of the spectrum of disease continues to evolve, the controversy and confusing nature of its multiple subtypes present a challenge for the physician who encounters a patient with this condition. Thus, we propose that morphea be classified into the following five groups: plaque, generalized, bullous, linear, and deep. This classification, based on clinical morphologic findings, will simplify the diagnostic and therapeutic approach. CONCLUSION Morphea represents a wide variety of clinical entities that seen to be on the opposite end of the scleroderma spectrum from systemic sclerosis. The cutaneous lesions eventually evolve from a sclerotic stage to a nonindurated stage, and residual hypopigmentation or hyperpigmentation follows. The histologic pattern in patients with morphea is similar to that in patients with progressive systemic sclerosis. Although treatment is nonstandardized, hydroxychloroquine sulfate may be beneficial.
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Gibson LE, Su WP. Cutaneous vasculitis. Rheum Dis Clin North Am 1995; 21:1097-113. [PMID: 8592739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Cutaneous vasculitis comprises a wide spectrum of clinical syndromes and histopathologic findings that share the common theme of vascular inflammation and blood vessel damage. Clinical pattern and proper histopathologic studies are essential to the proper classification and evaluation of vasculitis. This article discusses the major types of cutaneous vasculitis typified by necrotizing or leukocytoclastic vasculitis and includes discussions of Henoch-Schönlein purpura, urticarial vasculitis, erythema elevatum diutinum, cutaneous polyarteritis nodosa, livedoid vasculitis, and cutaneous granulomatous vasculitis.
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Abstract
BACKGROUND Pancreatic panniculitis is a rare disease in which necrosis of fat in the panniculus and other distant foci occurs in the setting of pancreatic disease. OBJECTIVE Our purpose was to study the clinical and histopathologic features of this disease. METHODS We conducted a retrospective review of 11 patients. RESULTS In five patients subcutaneous fat necrosis preceded the diagnosis of pancreatic disease by an average of 13 weeks. Five of our patients had underlying pancreatitis, and the remainder had carcinoma of the pancreas. Joint manifestations were prominent in six patients. Intestinal submucosal fat necrosis developed in two cases and caused massive gastrointestinal bleeding in one. Acute lesions demonstrated focal fat necrosis with "ghost cells," pathognomonic of this condition. Chronic lesions showed granulomatous and lipophagic panniculitis, with rare areas of basophilic fat necrosis. Cholecystectomy for gallstone pancreatitis was curative in two patients. CONCLUSION Pancreatic panniculitis has distinctive clinical and pathognomonic histopathologic findings that can be the presenting features of pancreatic disease.
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Wang CY, Schroeter AL, Su WP. Acquired immunodeficiency syndrome-related Kaposi's sarcoma. Mayo Clin Proc 1995; 70:869-79. [PMID: 7643641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To describe Kaposi's sarcoma (KS) associated with the acquired immunodeficiency syndrome (AIDS). DESIGN A review of AIDS-related KS (AIDS-KS), with its associated epidemiologic and etiologic characteristics, pathogenesis, clinical manifestations, histopathologic features, prognosis, and treatment, is presented. RESULTS KS is the most frequent malignant lesion in patients with AIDS. The incidence of AIDS-KS is high in homosexual and bisexual men who have multiple sexual partners and in children and women with the human immunodeficiency virus (HIV) infection. Anal-oral contact is one of the main routes of the sexually transmitted agents of AIDS-KS. The major pathogenic factors that may possibly induce AIDS-KS are HIV itself or other sexually transmitted agents, HIV tat gene, some oncogenes and cytokines such as interleukin 6, basic fibroblast growth factor, transforming growth factor-beta, oncostatin M, and platelet-derived growth factor. Treatment includes local therapy, radiotherapy, systemic chemotherapy, zidovudine, interferon, granulocyte-macrophage colony-stimulating factor, and other agents. CONCLUSION KS may be an early manifestation of AIDS and the most frequent neoplastic complication of AIDS. Growth factors, cytokines, immunosuppression, and interaction with infectious agents seem to have a role in the development of this enigmatic disorder. Treatment of KS should be individualized. Further investigation of the agents and factors of AIDS-KS may help facilitate the treatment and prevention of this neoplasm.
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Helander SD, Peters MS, Kuo TT, Su WP. Kimura's disease and angiolymphoid hyperplasia with eosinophilia: new observations from immunohistochemical studies of lymphocyte markers, endothelial antigens, and granulocyte proteins. J Cutan Pathol 1995; 22:319-26. [PMID: 7499571 DOI: 10.1111/j.1600-0560.1995.tb01414.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Kimura's disease (KD) typically presents as large subcutaneous masses in young Oriental males. It is characterized by deep inflammation with vascular proliferation, lymphocytic nodules with subcutaneous germinal centers, fibrosis, and edema. In comparison, angiolymphoid hyperplasia with eosinophilia (AHLE) occurs in all races and the lesions usually are smaller and more superficial. The causes of these two diseases are debated. We compared histologic features of 4 cases of KD with 22 cases of ALHE and studied expression of endothelial antigens and lymphocyte markers as well as localization of eosinophil, mast cell, and neutrophil granule proteins in lesional tissue. T-cell lymphoid aggregates with well-formed B-cell germinal centers occurred in KD, and nodular and diffuse T-cell infiltration with small B-cell clusters occurred in ALHE. Endothelial proliferation was more pronounced in KD, lacking the atypical histiocytoid endothelial cells characteristic of ALHE. Many intact eosinophils infiltrated lesions in both diseases, although KD had less extracellular granule protein deposition than ALHE. Intact mast cells were seen in both diseases. There was neutrophil elastase staining of occasional scattered intact cells but no extracellular deposition. Compared with KD, ALHE is more varied in its clinical, histopathologic, and immunohistochemical features.
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Abstract
OBJECTIVE To describe the types of skin cancer associated with the acquired immunodeficiency syndrome (AIDS). DESIGN A literature review of AIDS-related mucocutaneous neoplasms, including basal cell carcinoma, squamous cell carcinoma, bowenoid papulosis and Bowen's disease, squamous cell carcinoma, cloacogenic carcinoma, and malignant melanoma, is presented, and the incidence, etiopathogenesis, clinicopathologic features, treatment, and prognosis are discussed. RESULTS The association between cutaneous neoplasms and AIDS is well known. Neoplasms seem to grow more rapidly and be more invasive in patients with AIDS than in other groups of patients. Several oncogenic factors--for example, sunlight exposure or human papillomavirus infection--have been associated with the development of skin cancer in these patients. The morbidity and mortality rates of skin cancer are higher in patients infected with the human immunodeficiency virus (HIV) than in the general population. Early and complete excision of the neoplasm is especially important. CONCLUSION A link exists between AIDS and the development of skin cancer. HIV-infected patients should be followed up vigilantly for early diagnosis of skin cancer. Because these patients are less able to suppress common cutaneous malignant disease due to their immunocompromised status, biopsy specimens should be obtained from all suspicious lesions, and histopathologic assessment should be done.
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Abstract
BACKGROUND Some workers in paraquat manufacturing, exposed to bipyridines, have developed pigmentation and keratosis on sun-exposed skin. This condition has been described as skin-malignancy or premalignancy. This study was designed to clarify the pathologic features of these lesions and to explore the etiologic role played by bipyridine. METHODS Twenty-three biopsy specimens, obtained from the affected skin of 10 workers, were scrutinized by a dermatopathologist. A total of 242 exposed workers from 28 paraquat factories were examined and interviewed during the period from 1983 to 1991. The severity of the characteristic skin lesions was graded from the lowest to the highest response to analyze the data by Mantel extension for a trend that focused on the heavy exposure to bipyridines as risk factor. RESULTS All pathology specimens showed various degrees of solar damage: early actinic change, solar lentigo, actinic keratosis (AK), AK coexisting with squamous cell carcinoma (scc), and scc. Six specimens from four workers were scc or scc in situ. Three of six scc showed the coexistence of AK. Of the workers, 133 had skin lesions ranging in severity from grade 1 to grade 3 on sun-exposed areas. The severity of skin changes is strongly associated with heavy exposure to bipyridines (P < 0.0001). CONCLUSION This pathologic study proves that all the lesions showed either photodamage or skin cancer. The strong trend in the correlation between severity of photodamage and exposure to bipyridine leads to the speculation about the synergistic role of bipyridine exposure and the solar effect in causing these malignant and premalignant skin lesions.
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Abstract
OBJECTIVE To describe lymphoma associated with human immunodeficiency virus (HIV) infection. DESIGN A review of HIV-related lymphoma and its associated epidemiology, etiopathogenesis, and clinicopathologic characteristics is presented. Major studies of therapeutic regimens for HIV-related lymphoma are discussed. Factors that could contribute to a poor prognosis are summarized. RESULTS Malignant lymphoma that develops in patients with HIV infection fulfills diagnostic criteria for the acquired immunodeficiency syndrome (AIDS). The incidence is increasing and varies by subtype of lymphoma, age, sex, race, and risk factors. B-cell hyperactivation is thought to contribute to the development of lymphoma. The mechanisms that may show transformed cell hyperproliferation and clonal expansion are HIV itself or other viruses (for example, Epstein-Barr virus), growth factors, aberrant oncogene or tumor-suppressor gene expression, and factors that induce genetic instability or DNA damage or alter host or viral genome repair. Treatment of HIV-related lymphoma is associated with toxicity, infectious complications, low rate of complete response, and brief median survival time. CONCLUSION Persons with HIV-induced immune dysregulation have a high risk for the development of aggressive non-Hodgkin's lymphoma characterized by histologic evidence of a high-grade malignant process, B-cell phenotype, an unusual extranodal involvement, and a poor prognosis. The potential role of specific viruses, antiviral treatments, and other therapeutic strategies are future areas of investigation.
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Dahl PR, Daoud MS, Su WP. Jadassohn-Lewandowski syndrome (pachyonychia congenita). SEMINARS IN DERMATOLOGY 1995; 14:129-34. [PMID: 7640192 DOI: 10.1016/s1085-5629(05)80008-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Pachyonychia congenita is an uncommon autosomal dominant disorder with variable expression. Symmetrical nail hypertrophy, present in nearly all cases, is accompanied by dyskeratosis and dysplasia of other ectodermal tissues. This article reviews the genetics, clinical manifestations, histopathology, and treatment of pachyonychia congenita. Many clinical features have been reported in association with this syndrome. From a review of the literature, we propose criteria for the diagnosis of pachyonychia congenita using the more important of these clinical manifestations.
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Abstract
The Noonan syndrome is a rare disease characterized by dysmorphic facies, short stature, ear abnormalities, cryptorchidism, ocular abnormalities, cardiovascular anomalies, cubitus valgus, webbed neck, and cutaneous and hair abnormalities. Some 25% to 40% of patients have dermatologic abnormalities. Diagnosis is purely clinical, and intrauterine diagnosis is very important based on the presence of cystic hygroma and evidence of myocardial abnormalities. Treatment is symptomatic. Genetic counseling is necessary.
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Abstract
Nine cases of Olmsted syndrome have been reported in the world literature. In this syndrome, keratoderma usually starts during infancy on the palms and soles when the baby starts to use the feet for walking and the hands for grasping. Within weeks or months, there is progressive spread of solid, symmetrical, thick hyperkeratotic keratoderma to both palms and soles, surrounded by erythematous margins. Contraction of fingers and deep fissuring of the feet are common complications. Symmetrical, yellow-brown hyperkeratotic plaques and papules are also observed around body orifices such as the mouth, nares, inguinal region, and perianal and gluteal areas. Other clinical manifestations have been reported, including diffuse alopecia, thin nails, leukokeratosis of the oral mucosa, onychodystrophy, hyperkeratotic linear streaks, exaggerated keratosis pilaris, and large verrucous plaques in the axillae. In the differential diagnosis, other keratoderma and hyperkeratotic syndromes should be considered.
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Abstract
The original TORCH complex described clinically similar congenital infections caused by Toxoplasma gondii, rubella virus, cytomegalovirus, and herpes simplex virus, types 1 and 2. Cutaneous manifestations, including petechiae, purpura, jaundice, and dermal erythropoiesis, are commonly seen in toxoplasmosis, rubella, and cytomegalovirus infections. In herpes simplex virus infections, 80% of symptomatic infants show single or grouped cutaneous vesicles, oral ulcers, or conjunctivitis. Extracutaneous signs and symptoms are variable and can be severe. Significant clinical signs in congenital toxoplasmosis include diffuse intracerebral calcification, chorioretinitis, and microcephaly; congenital rubella can result in deafness, congenital heart disease, retinopathy, and brain calcification. Cytomegalic inclusion disease can include hepatomegaly, splenomegaly, paraventricular calcification, and intrauterine growth retardation. Localized or disseminated congenital herpes virus infection often involves the central nervous system and the eye. Diagnosis is confirmed by culture and identification of species-specific immunoglobulin M within the first 2 weeks of life. Histological examination contributes to the diagnosis in herpes simplex virus infection. Treatment for toxoplasmosis includes pyrimethamine with sulfadiazine or trisulfapyrimidine; congenital herpes simplex virus infection is treated with acyclovir. No specific therapy for congenital rubella or cytomegalovirus infections has been established, and so treatment is primarily supportive.
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Chen KR, Su WP, Pittelkow MR, Leiferman KM. Eosinophilic vasculitis syndrome: recurrent cutaneous eosinophilic necrotizing vasculitis. SEMINARS IN DERMATOLOGY 1995; 14:106-10. [PMID: 7640189 DOI: 10.1016/s1085-5629(05)80005-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We recently identified a syndrome of recurrent cutaneous eosinophilic vasculitis in three patients. These patients had in common widespread pruritic, erythematous, purpuric papules and angioedema of face and hands associated with peripheral blood eosinophilia. Eight skin biopsies from these three patients all showed necrotizing vasculitis of the small vessels of the skin, with exclusively eosinophilic infiltration and minimal or no leukocytoclasis. The disease followed a chronic course, with recurrent, itchy, swelling skin lesions and without evidence of systemic involvement over observation periods of 3, 17, and 23 years. The skin lesions responded promptly to systemic steroid treatment, but two patients required maintenance doses for control of the disease. Immunofluorescence studies showed marked deposition of the cytotoxic eosinophil granule major basic protein in the affected vessel walls. Eosinophil-active cytokine IL-5 was detected in the serum of one patient. Expression of the vascular cell adhesion molecule-1 for eosinophil adherence was detected on the endothelium of the affected vessels. Because this disease showed distinctive clinical manifestations and characteristic histopathological features, we believe it is a distinct entity and should be distinguished from other types of vasculitis.
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