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    3016 results match your criteria Pyoderma Gangrenosum

    1 OF 61

    Hidradenitis Suppurativa: Inside and Out.
    Indian J Dermatol 2018 Mar-Apr;63(2):91-98
    Department of Dermatology, Dr. D. Y. Patil Hospital, Navi Mumbai, Maharashtra, India.
    Hidradenitis suppurativa is a chronic, disabling, suppurative disease characterized by deep tender subcutaneous nodules; complicated by fibrosis and extensive sinuses affecting primarily the apocrine gland bearing areas. It affects all races in early 20s with greater prevalence seen in women (3 to 5:1). The estimated disease prevalence is 1 - 4 %. Read More

    Takayasu arteritis in childhood: misdiagnoses at disease onset and associated diseases.
    Rheumatol Int 2018 Apr 23. Epub 2018 Apr 23.
    Pediatrics Rheumatoloy Unit, Department of Pediatrics, São Paulo Federal University, São Paulo, SP, Brazil.
    Juvenile-Takayasu arteritis (j-TA) is a difficult diagnosis and some patients develop uncommon manifestations and associated diseases that may contribute to the delayed diagnosis. Our aim was to identify the misdiagnoses, the associated diseases and the atypical manifestations observed in a j-TA Brazilian multicentre study. 71 children and adolescents who met the classification criteria for j-TA were included. Read More

    Pyoderma gangrenosum in primary care setting: the challenges involved.
    J Community Hosp Intern Med Perspect 2018 17;8(2):57-59. Epub 2018 Apr 17.
    Internal Medicine, Greater Baltimore Medical Center, Baltimore, MD, USA.
    This article aims at raising clinical awareness about pyoderma gangrenosum especially when presenting in primary care settings. Due to its initial manifestation as a nonspecific ulcer, physicians with relatively less dermatology experience usually misdiagnose PG as cutaneous infection or vascular disease. This usually leads to inappropriate treatment with subsequent worsening of condition and devastating effects on patients' lives. Read More

    Safety profile of chronic leg ulcer biopsy: a monocentric retrospective series on 866 patients.
    G Ital Dermatol Venereol 2018 Apr 19. Epub 2018 Apr 19.
    Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.
    Background: Skin biopsy is an important tool for various skin conditions. However, in the case of leg ulcers, some Authors still consider it highly risky and mandatory only in selected cases.

    Methods: To evaluate the rate of adverse events after leg ulcers biopsy in 866 consecutive patients referring to our Wound Care Unit in Bologna from January 2008 to December 2016. Read More

    Extraintestinal Manifestations in Vedolizumab and Anti-TNF-Treated Patients With Inflammatory Bowel Disease.
    Inflamm Bowel Dis 2018 Apr 13. Epub 2018 Apr 13.
    AbbVie Inc., North Chicago, Illinois.
    Background: Extra-intestinal manifestations (EIMs) can impact morbidity in patients with inflammatory bowel diseases (IBD; Crohn's disease [CD] and ulcerative colitis [UC]). This study compared incidence rates of EIMs in patients with moderate to severe IBD receiving gut-selective vedolizumab (VDZ) vs those receiving systemic anti-tumor necrosis factor (anti-TNF) therapies.

    Methods: Adult IBD patients receiving VDZ or anti-TNFs were identified from the MarketScan claims database from September 28, 2012, through September 30, 2016. Read More

    Pyoderma gangrenosum in an infant: A case report and review of the literature.
    Pediatr Dermatol 2018 Apr 15. Epub 2018 Apr 15.
    University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
    Pyoderma gangrenosum is a neutrophilic dermatosis that is rare in infancy, with only 20 cases reported in the literature. We present a case of infantile pyoderma gangrenosum refractory to topical steroids, tacrolimus, and dapsone as well as systemic steroids and infliximab that is currently well controlled with the addition of oral tacrolimus. To our knowledge, this is the first report of the effective, safe use of oral tacrolimus in combination with infliximab for infantile pyoderma gangrenosum. Read More

    Neutrophilic dermatoses. Part II. Pyoderma gangrenosum and other bowel and arthritis associated neutrophilic dermatoses.
    J Am Acad Dermatol 2018 Apr 10. Epub 2018 Apr 10.
    Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA. Electronic address:
    Neutrophilic dermatoses are a heterogeneous group of inflammatory skin disorders that present with unique clinical features, but are unified by the presence of a sterile, predominantly neutrophilic infiltrate on histopathology. The morphology of cutaneous lesions associated with these disorders is heterogeneous, which renders diagnosis challenging. Moreover, a thorough evaluation is required to exclude diseases that mimic these disorders and to diagnose potential associated infectious, inflammatory, and neoplastic processes. Read More

    Bullous pyoderma gangrenosum as a predictor of hematological malignancies.
    An Bras Dermatol 2018 Jan-Feb;93(1):133-134
    Department of Dermatology at Universidad de Buenos Aires - Buenos Aires, Argentina.
    Pyoderma gangrenosum may precede, coexist or follow diverse systemic diseases. The bullous variety is usually associated with hematologic disorders. From 31 patients with pyoderma gangrenosum diagnosed in our hospital during 10 years, only 2 presented with the bullous type. Read More

    Pyoderma Gangrenosum: A clinical conundrum.
    J Eur Acad Dermatol Venereol 2018 Apr 6. Epub 2018 Apr 6.
    Mansoura Dermatology, Venereology and Leprology Hospital, Mansoura, Egypt. 5-Amien Alsamanoudy Street,from AbdelsalamAaref Street,Mansoura, Egypt.
    I read with great interest a review by Gupta et al. published recently in the journal of European Academy of Dermatology and Venereology. The authors reviewed the literatures for the clinical presentation of pyoderma gangrenosum (PG) with pulmonary involvement (PPG). Read More

    Reply to: Pyoderma Gangrenosum: A clinical conundrum.
    J Eur Acad Dermatol Venereol 2018 Apr 6. Epub 2018 Apr 6.
    Oregon Health & Sciences University, Department of Dermatology.
    We thank Dr. Abdelmaksoud for his interest in reading our article published on pulmonary pyoderma gangrenosum (PG) recently published in this journal, however we would like to note some inaccuracies in his reporting of our study. Hematologic malignancy was found in 22% of pulmonary pyoderma gangrenosum patients, not 50%. Read More

    Application of Viable Cryopreserved Human Placental Membrane Grafts in the Treatment of Wounds of Diverse Etiologies: A Case Series.
    Wounds 2018 Mar;30(3):57-61
    Temple University School of Podiatric Medicine, Philadelphia, PA.
    There is evidence in the literature that viable cryopreserved human placental membrane (vCHPM) grafts are effective in treating diabetic foot ulcers and venous leg ulcers.

    Objective: This case series presents 3 cases of chronic ulcerations - 1 arterial ulcer (AU), 1 pressure ulcer (PU), and 1 recurrence of a pyoderma gangrenosum ulcer (PGU) - that had failed previous courses of standard wound care and were subsequently treated with vCHPM to determine if the treatment is an effective modality for treating wounds of these etiologies.

    Materials And Methods: This retrospective review describes 3 cases in which patients with chronic wounds that had failed standard of care treatments for more than 4 weeks were subsequently treated with weekly applications of vCHPM. Read More

    [Uncommon ulceration on the lower lip].
    Pan Afr Med J 2017 27;28:180. Epub 2017 Oct 27.
    Service de Dermatologie et Vénérologie, Centre Hospitalier Universitaire Ibn Sina, Faculté de Médecine et de Pharmacie, Université Mohammed V, Rabat, Maroc.
    Cutaneous pathomimia is a self-induced disease characterized by conscious self-injury to mucocutaneous boundary or its phaneres. We report the case of a 22-year old woman, with no notable medical history, presenting with sudden onset ulceration on her lower lip evolving for 3 months in a context of preservation of patient's clinical status. The patient had previously consulted several dermatologists and had undergone two skin biopsies with non-specific histological diagnosis. Read More

    Pyoderma gangrenosum mimicking inflammatory breast cancer.
    Postepy Dermatol Alergol 2017 Oct 31;34(5):501-503. Epub 2017 Oct 31.
    Chair of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Faculty of Medicine in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland.

    Azacitidine-induced pyoderma gangrenosum at injection sites in a patient with myelodysplastic syndrome.
    Curr Oncol 2018 Feb 28;25(1):e103-e105. Epub 2018 Feb 28.
    Département de médecine interne, Service d'hématologie-oncologie et banque de sang, Centre hospitalier de l'Université de Montréal, Montréal, Québec, Canada.
    Pyoderma gangrenosum (pg) is a rare neutrophilic dermatosis characterized by painful necrotic ulceration affecting preferentially the lower extremities. Diagnosis is challenging, and a thorough workup (including biopsy) is required. In this case report, we describe a 67-year-old patient with a diagnosis of myelodysplastic syndrome (mds) who developed fever and pg two days after the first cycle of subcutaneous azacitidine (Vidaza; Celgene Corporation, Summit, NJ, USA). Read More

    Delayed diagnosis of post-surgical pyoderma gangrenosum: A multicenter case series and review of literature.
    Int J Surg Case Rep 2018 19;44:152-156. Epub 2018 Feb 19.
    Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
    Introduction: Pyoderma gangrenosum is a chronic neutrophilic dermatosis which can occur following trauma or surgery and can mimic infection. Surgical intervention can lead to progression of disease.

    Presentation Of Cases: This case series describes 3 cases of post-surgical pyoderma gangrenosum with delayed diagnosis from two large medical centers. Read More

    Follicular Unit Grafting in Chronic Nonhealing Leg Ulcers: A Clinical Study.
    J Cutan Aesthet Surg 2017 Oct-Dec;10(4):200-206
    Department of Dermatology, Bangalore Medical College and Research Institute, Bengaluru, Karnataka, India.
    Introduction And Objectives: The restoration of the epithelium after injury takes place by migration of epithelial cells adjoining a wound or by centrifugal migration from hair follicles. To evaluate the feasibility and potential healing capacity of scalp follicular unit grafts transplanted into the wound bed of chronic leg ulcers.

    Materials And Methods: Patients with chronic nonhealing ulcers of more than 6 weeks duration were selected for the study. Read More

    A pyoderma gangrenous-like cutaneous leishmaniasis in a Libyan woman with rheumatoid arthritis: a case report.
    BMC Res Notes 2018 Mar 1;11(1):158. Epub 2018 Mar 1.
    Dermatology Department, Faculty of Medicine, University of Tripoli, Tripoli, Libya.
    Background: Several case reports describe diseases presenting with skin ulcerations, which resemble pyoderma gangrenosum especially in immune-compromised patients, often proven on further workup, to have an infective or malignant etiology. However, treatment of pyoderma gangrenosum by systemic steroids or other immunosuppressive agents may worsen the condition.

    Case Presentation: We report here, a 45 year-old Libyan woman with rheumatoid arthritis on low dose steroids with pyoderma gangrenosum-like skin lesions and positive pathergy. Read More

    Pyoderma Gangranosum-Like Blastomycosis.
    J Cutan Med Surg 2018 Feb 1:1203475418760460. Epub 2018 Feb 1.
    3 Wound Care Centre, Women's College Hospital, Toronto, ON, Canada.
    Blastomyces dermatitidis is typically contracted through inhalation of the dimorphic conidia, resulting in pulmonary infection as well as extrapulmonary disease through hematogenous spread. Blastomycosis is considered one of the great mimickers in medicine, with verrucous cutaneous blastomycosis resembling skin malignancy and B dermatitidis pulmonary infections often confused with lung cancer. Cutaneous blastomycosis can also often mimic pyoderma gangrenosum and should be considered in the differential diagnosis in any suspected case. Read More

    Effects of Vedolizumab Therapy on Extraintestinal Manifestations in Inflammatory Bowel Disease.
    Dig Dis Sci 2018 Apr 26;63(4):825-833. Epub 2018 Feb 26.
    Robarts Clinical Trials, Robarts Research Institute, Western University, 100 Dundas Street, Suite 200, London, ON, N6A 5B6, Canada.
    Background: Approximately 15-20% of ulcerative colitis patients and 20-40% of those with Crohn's disease experience extraintestinal manifestations (EIMs) of their inflammatory bowel disease (IBD). Clinicians who treat IBD must manage EIMs affecting multiple organs that variably correlate with intestinal disease activity. Vedolizumab is a monoclonal antibody for the treatment of IBD with a gut-selective mechanism of action. Read More

    Pyoderma Gangrenosum of the Scalp: A Rare Clinical Variant.
    Wounds 2018 Feb;30(2):E16-E20
    Oregon Health & Sciences University, Department of Dermatology, Portland, OR.
    Pyoderma gangrenosum (PG) is a rare, neutrophil-predominant dermatosis that usually presents as a papule or pustule and progresses into a painful ulcer. Clinical and histopathological features are nonspecific, making PG a challenging condition to diagnose. Lesions may occur anywhere on the body; however, the lower extremity is the most common location. Read More

    Effectiveness of Systemic Treatments for Pyoderma Gangrenosum:A Systematic Review of Observational Studies & Clinical Trials.
    Br J Dermatol 2018 Feb 25. Epub 2018 Feb 25.
    Division of Dermatology, University of Toronto, Toronto, Canada.
    Background: Pyoderma gangrenosum (PG) is a neutrophilic dermatosis with substantial morbidity. Currently, there is no consensus on gold-standard treatments.

    Objectives: Our primary objective was to review the effectiveness of systemic therapy for PG. Read More

    Comorbidities of pyoderma gangrenosum: a retrospective multicentric analysis of 126 patients.
    Br J Dermatol 2018 Feb 17. Epub 2018 Feb 17.
    Department of Dermatology, Saint Vincent de Paul Hospital, Hospital Group of the Catholic Institute of Lille Lille, France.
    Pyoderma Grangrenosum (PG) is a rare neutrophilic dermatosis with challenging diagnosis and unclear underlying mechanisms. Multifactorial causes are purposed, including neutrophilic dysfunction, aberrant cellular immunity and cytokinic activities, and genetic predispositions . An association with a systemic disease is classically described in 25 to 75% of cases, including inflammatory bowel diseases (IBD), inflammatory rheumatological diseases (IRD) and hematological disorders. Read More

    Successful therapy of Pyoderma gangrenosum with a JAK2 inhibitor.
    Br J Dermatol 2018 Feb 16. Epub 2018 Feb 16.
    Department of Dermatology, General Hospital Augsburg, Augsburg, Germany.
    Pyoderma gangrenosum (PG) is a rare, solitary or multiple, chronically progressive, painful, destructive, sterile neutrophil inflammation of unexplained aetiology and pathogenesis, which often remains resistant to treatment. An autoimmunological and autoinflammatory genesis is discussed, which is the main reason why there are so many immunosupressant therapies available. PG may occur in association with inflammatory and haematological disorders, such as Crohn's disease, myeloma, leukaemia, lymphoma and polycythemia vera (PV), as it is the case in our patient presented here. Read More

    The Validity of the Diagnostic Code for Pyoderma Gangrenosum in an Electronic Database.
    Br J Dermatol 2018 Feb 16. Epub 2018 Feb 16.
    Department of Dermatology, Brigham and Women's Hospital, Boston, MA, USA.
    Pyoderma gangrenosum (PG) is a rare inflammatory and ulcerative neutrophilic dermatosis with an estimated incidence of 3-10 cases per million people annually. Given that our understanding of PG is limited by disease rarity and considerable misdiagnosis rates (~30-50%), establishing a method to identify cases in large databases would facilitate population-based research. This approach has been used in other dermatologic diseases, where case identification is performed by diagnosis-related queries based on the International Classification of Diseases (ICD) code. Read More

    Diagnostic Criteria of Ulcerative Pyoderma Gangrenosum: A Delphi Consensus of International Experts.
    JAMA Dermatol 2018 Apr;154(4):461-466
    Department of Dermatology, University of California, Davis, Sacramento.
    Importance: Pyoderma gangrenosum is a rare inflammatory skin condition that is difficult to diagnose. Currently, it is a "diagnosis of exclusion," a definition not compatible with clinical decision making or inclusion for clinical trials.

    Objective: To propose and validate diagnostic criteria for ulcerative pyoderma gangrenosum. Read More

    The Association of Age With Clinical Presentation and Comorbidities of Pyoderma Gangrenosum.
    JAMA Dermatol 2018 Apr;154(4):409-413
    Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
    Importance: Pyoderma gangrenosum is an inflammatory neutrophilic dermatosis. Current knowledge of this rare disease is limited owing to a lack of validated diagnostic criteria and large population studies.

    Objective: To evaluate the association of age with the clinical presentation and comorbidities of pyoderma gangrenosum. Read More

    Pyoderma gangrenosum, acne, and suppurative hidradenitis syndrome in end-stage renal disease successfully treated with adalimumab.
    Dermatol Online J 2017 Dec 15;23(12). Epub 2017 Dec 15.
    Division of Dermatology, Department of Medicine, University of Stellenbosch and Tygerberg Academic Hospital, Tygerberg, Cape Town, South Africa.
    PASH syndrome (pyoderma gangrenosum, acne, and suppurative hidradenitis) forms part of the spectrum of autoinflammatory diseases. We report an unusual case of PASH syndrome in a patient with end-stagerenal disease (ESRD) who was successfully treated with the tumor necrosis factor inhibitor, adalimumab. The case underscores the challenges associatedwith the treatment of PASH syndrome as well as the ongoing search to establish a genetic basis for the syndrome. Read More

    The impact of underlying disease state on outcomes in patients with pyoderma gangrenosum: A national survey.
    J Am Acad Dermatol 2018 Feb 10. Epub 2018 Feb 10.
    Department of Internal Medicine, Division of Gastroenterology, The Ohio State University Wexner Medical Center, Columbus, Ohio.
    Background: Whether the underlying disease affects the outcomes in pyoderma gangrenosum (PG) is unclear.

    Objectives: To determine the impact of comorbid disease associations and concomitant procedural treatments on patient outcomes in hospitalizations of patients with PG.

    Methods: A cross-sectional analysis of the National Inpatient Sample for hospitalizations of patients with PG from the years 2002 to 2011, analyzing in-hospital mortality rate and health care resource utilization. Read More

    Management of Facial Pyoderma Gangrenosum Using Platelet-Rich Fibrin: A Technical Report.
    J Oral Maxillofac Surg 2018 Jan 31. Epub 2018 Jan 31.
    Associate Professor, School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy. Electronic address:
    This report describes a case of local pyoderma gangrenosum that was treated with short-term immunosuppressive therapy and the topical application of platelet-rich fibrin (PRF). Medical treatment included oral corticosteroid therapy and topical treatment with PRF in solid and liquid form. This therapy initially led to the reduction of the ulcer's size and an improvement in symptoms, until the ulcer was completely healed after a few weeks. Read More

    [When to ask for a skin biopsy in a patient with leg ulcer? Retrospective study of 143 consecutive biopsies].
    J Med Vasc 2018 Feb 21;43(1):4-9. Epub 2017 Nov 21.
    Service de médecine vasculaire, groupe hospitalier Paris-Saint-Joseph, 185, rue Raymond-Losserand, 75674 Paris cedex 14, France.
    Objective: A vascular cause is found in around 85% of leg ulcer patients, but non-vascular causes are also observed. Their diagnosis is based on a set of clinical arguments and skin biopsy with histological analysis. The aim of this study was to analyze the results of these biopsies and to find common criteria for ulcers whose skin biopsies had led to the diagnosis of a non-vascular ulcer. Read More

    Hyperbaric oxygen therapy for pyoderma gangrenosum associated with ulcerative colitis.
    Intest Res 2018 Jan 18;16(1):155-157. Epub 2018 Jan 18.
    Department of Internal Medicine, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.
    Pyoderma gangrenosum (PG), an ulcerating skin condition, is rare in patients with ulcerative colitis (UC). We report a case of successful treatment of PG in a patient with UC using hyperbaric oxygen therapy (HBOT). The patient had UC that was in remission following treatment with mesalazine and azathioprine therapy. Read More

    Pyoderma gangrenosum: a review of pathogenesis and treatment.
    Expert Rev Clin Immunol 2018 Mar 13;14(3):225-233. Epub 2018 Feb 13.
    a Department of Dermatology , Wake Forest School of Medicine , Winston Salem , North Carolina , USA.
    Introduction: Pyoderma gangrenosum (PG) is a complex neutrophilic dermatosis that can occur as an idiopathic disease, in association with systemic conditions such as inflammatory bowel disease, as part of an inherited inflammatory syndrome. It can be challenging to treat, as it occurs in a wide variety of clinical settings and there is a lack of a standardized treatment approach. The main limitations to treatment have been an incomplete understanding of the pathogenesis. Read More

    The PARACELSUS score: A novel diagnostic tool for pyoderma gangrenosum.
    Br J Dermatol 2018 Feb 1. Epub 2018 Feb 1.
    Department of Dermatology, Venereology and Allergology, University Hospital of Essen, Germany.
    Background: The lack of objective diagnostic criteria renders pyoderma gangrenosum (PG) a diagnosis of exclusion. The diagnostic approaches proposed to date have not been systematically evaluated. Thus, PG remains a challenging and frequently misdiagnosed disorder. Read More

    gene mutation in a patient with overlapping neutrophilic disease (pyoderma gangrenosum and aseptic abscess syndrome).
    JAAD Case Rep 2018 Mar 16;4(2):120-122. Epub 2018 Jan 16.
    Medicina Interna, Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, Ospedale Maggiore Policlinico, Fondazione IRCCS Ca' Granda, Milan, Italy.

    Paraneoplastic Pyoderma Gangrenosum Associated with Rectal Adenocarcinoma.
    Ann Dermatol 2018 Feb 26;30(1):79-82. Epub 2017 Dec 26.
    Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea.
    Pyoderma gangrenosum (PG) is a rare chronic neutrophilic dermatosis characterized by painful necrotic ulceration. The most common diseases associated with PG are inflammatory bowel disease, certain rheumatologic and hematologic diseases, and malignancy. Here, we describe the case of a 60-year-old man who presented with pruritic and painful erythematous ulcerative macules and patches on both lower extremities, and was diagnosed with PG based on his clinical and histologic features. Read More

    When a wound is the harbinger of a serious underlying systemic illness.
    BMJ Case Rep 2018 Jan 31;2018. Epub 2018 Jan 31.
    Department of Rheumatology, University of Mississippi Medical Center, Jackson, Mississippi, USA.
    A 55-year-old woman presented with progressive enlarging and painful non-healing ulcers on her bilateral lower extremities; biopsy was consistent with pyoderma gangrenosum. Workup for an underlying illness revealed a cavitary lung nodule and an ulcerating mass in the anal canal. Patient did not have any respiratory or gastrointestinal symptoms. Read More

    Classic Ulcerative Pyoderma Gangrenosum Is a T Cell-Mediated Disease Targeting Follicular Adnexal Structures: A Hypothesis Based on Molecular and Clinicopathologic Studies.
    Front Immunol 2017 15;8:1980. Epub 2018 Jan 15.
    Department of Dermatology, University of California, Davis, Sacramento, CA, United States.
    Background: Pyoderma gangrenosum (PG) is a debilitating ulcerative skin disease that is one of the most common associated diseases seen in patients with inflammatory bowel disease and rheumatoid arthritis. Although PG is classified as a neutrophilic dermatosis, its pathophysiology is poorly understood.

    Objective: Use data obtained from patient-reported histories, immunohistochemistry, and gene expression analysis to formulate a hypothesis on PG pathophysiology. Read More

    Skin manifestations of rheumatoid arthritis.
    G Ital Dermatol Venereol 2018 Apr 24;153(2):243-255. Epub 2018 Jan 24.
    Unit of Dermatopathology, San Gallicano Dermatological Institute, Rome, Italy -
    Rheumatoid arthritis is a chronic systemic disease that, in addition to articular involvement, may exhibit a variety of extraarticular manifestations. The skin is frequently involved mainly in the most severe forms of the disease. Rheumatoid nodules, accelerated rheumatoid nodulosis, rheumatoid nodulosis, Felty syndrome, rheumatoid vasculitis, pyoderma gangrenosum, rheumatoid neutrophilic dermatosis, interstitial granulomatous dermatitis, and palisaded neutrophilic granulomatous dermatitis are reviewed both clinically and histologically. Read More

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