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https://www.readbyqxmd.com/read/29657213/reactive-perforating-collagenosis-an-important-differential-diagnosis-in-hemodialysis-patients
#1
Ayan Kumar Dey
This is a case report of a 68-year-old hypertensive, diabetic woman who was on regular thrice weekly hemodialysis (HD). She presented with gradually worsening left lower limb pain and swelling. Clinical examination revealed significant edema over the left calf and ankle joint with significant calf tenderness. Extensive workup including magnetic resonance imaging of the lower limb and venous Doppler failed to show any significant abnormality. In view of developing papular lesions over the area, skin biopsy was performed, which finally confirmed reactive perforating collagenosis...
March 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29562536/update-on-vascular-cognitive-impairment-associated-with-subcortical-small-vessel-disease
#2
Anders Wallin, Gustavo C Román, Margaret Esiri, Petronella Kettunen, Johan Svensson, George P Paraskevas, Elisabeth Kapaki
Subcortical small-vessel disease (SSVD) is a disorder well characterized from the clinical, imaging, and neuropathological viewpoints. SSVD is considered the most prevalent ischemic brain disorder, increasing in frequency with age. Vascular risk factors include hypertension, diabetes, hyperlipidemia, elevated homocysteine, and obstructive sleep apnea. Ischemic white matter lesions are the hallmark of SSVD; other pathological lesions include arteriolosclerosis, dilatation of perivascular spaces, venous collagenosis, cerebral amyloid angiopathy, microbleeds, microinfarcts, lacunes, and large infarcts...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29446164/dipeptidyl-peptidase-4-inhibitor-associated-bullous-pemphigoid-in-a-patient-with-acquired-reactive-perforating-collagenosis
#3
Nobuki Maki, Wataru Nishie, Maya Takazawa, Maki Kakurai, Tomoko Yamada, Naoka Umemoto, Masaaki Kawase, Kentaro Izumi, Hiroshi Shimizu, Toshio Demitsu
Bullous pemphigoid (BP) is a common autoimmune blistering disorder with unknown etiology. Recently, increasing numbers of BP cases which developed under the medication with dipeptidyl peptidase-4 inhibitors (DPP4i), widely used antihyperglycemic drugs, have been reported in published works. Here, we report a case of DPP4i (teneligliptin)-associated BP that developed in a 70-year-old Japanese man. Interestingly, the patient had acquired reactive perforating collagenosis (ARPC), which is also known to be associated with the onset of BP...
February 14, 2018: Journal of Dermatology
https://www.readbyqxmd.com/read/29258863/fibrous-cephalic-plaques-in-tuberous-sclerosis-complex
#4
Oyetewa Oyerinde, Danielle Buccine, Alison Treichel, Claire Hong, Chyi-Chia Richard Lee, Joel Moss, Thomas N Darling
BACKGROUND: Fibrous cephalic plaques (FCPs) stereotypically develop on the forehead of patients with tuberous sclerosis complex (TSC). They constitute a major feature for TSC diagnosis and may present before other TSC-related cutaneous hamartomas. OBJECTIVE: To describe the clinical characteristics of FCPs in TSC. METHODS: A total of 113 patients with TSC were enrolled in an observational cohort study. Retrospective analysis of medical records and skin photography was performed...
April 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29036804/rheopheresis-as-a-causal-therapy-option-for-systemic-scleroderma-ssc
#5
Stine Lutze, G Daeschlein, W Konschake, Michael Jünger
A complex pathomechanism accounts systemic sclerosis as a form of collagenosis. A triad of vasculopathy, autoinflammation, and dysbalance of the fibroblast function can be seen as cause, as well as symptomatic appearance. Comparative with other collagenoses, e.g. Lupus erythematosus, vasculopathy, instead of autoinflammation, appears to be clinically important in systemic scleroderma. The fact that autoinflammation does not represent the major role in the maintenance of the disease is also evident by the lack of therapeutic effects of classical systemic immunosuppressants...
2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28982724/the-structure-of-the-perivascular-compartment-in-the-old-canine-brain-a-case-study
#6
Theodore P Criswell, Matthew MacGregor Sharp, Howard Dobson, Ciara Finucane, Roy O Weller, Ajay Verma, Roxana O Carare
Dilatation of periarteriolar spaces in MRI of the ageing human brains occurs in white matter (WM), basal ganglia and midbrain but not in cerebral cortex. Perivenous collagenous occurs in periventricular but not in subcortical WM.Here we test the hypotheses that (a) the capacity for dilatation of periarteriolar spaces correlates with the anatomical distribution of leptomeningeal cells coating intracerebral arteries and (b) the regional development of perivenous collagenous in the WM correlates with the population of intramural cells in the walls of veins...
November 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28691303/acquired-reactive-perforating-collagenosis-associated-with-hodgkin-disease
#7
A Rivera-Rodríguez, L Prieto-Torres, F Felipo-Berlanga, M Ara-Martín
No abstract text is available yet for this article.
July 10, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28474638/expression-of-the-receptor-for-advanced-glycation-end-products-in-acquired-reactive-perforating-collagenosis
#8
Gulsen Akoglu, Nuran Sungu, Eda Karaismailoglu, Akin Aktas
BACKGROUND: Acquired reactive perforating collagenosis (ARPC) is a rare skin disorder characterized by transepidermal elimination of dermal collagen. There is little data regarding the pathogenesis of ARPC. The receptor for advanced glycation end products (RAGE) is a multiligand transmembrane receptor that plays an important role in inflammatory responses and may be involved in the pathogenesis of ARPC. AIM: To explore the expression of RAGE in ARPC. METHODS: Paraffin-embedded punch biopsy specimens of 41 patients with ARPC and of 11 healthy controls with normal skin were obtained from the Department Of Pathology...
July 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/28431180/collagenosis-of-the-deep-medullary-veins-an-underrecognized-pathologic-correlate-of-white-matter-hyperintensities-and-periventricular-infarction
#9
Julia Keith, Fu-Qiang Gao, Raza Noor, Alex Kiss, Gayathiri Balasubramaniam, Kelvin Au, Ekaterina Rogaeva, Mario Masellis, Sandra E Black
White matter hyperintensities (WMH) are prevalent. Although arteriolar disease has been implicated in their pathogenesis, venous pathology warrants consideration. We investigated relationships of WMH with histologic venous, arteriolar and white matter abnormalities and correlated findings with premortem neuroimaging. Three regions of periventricular white matter were sampled from archived autopsy brains of 24 pathologically confirmed Alzheimer disease (AD) and 18 age-matched nonAD patients. Using trichrome staining, venous collagenosis (VC) of periventricular veins (<150 µm in diameter) was scored for severity of wall thickening and occlusion; percent stenosis by collagenosis of large caliber (>200 µm) veins (laVS) was measured...
April 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28329555/dermatomyositis-clinically-presenting-with-cutaneous-ulcers-with-histopathologic-evidence-of-perforating-collagenosis
#10
Rachel Rosenstein, Kathryn Martires, Mitalee Christman, Vitaly Terushkin, Shane A Meehan, Nicole Seminara, Brian D Golden, Andrew G Franks
Dermatomyositis is a systemic, autoimmune diseasewith a variety of clinical features that often includemyositis and characteristic cutaneous findings. Asubset of patients with dermatomyositis developcutaneous ulcers, often in the setting of vasculitis orvasculopathy. We present a case of dermatomyositiswith cutaneous ulcers that show perforatingcollagenosis on histopathologic examination.Acquired reactive perforating collagenosistypically occurs in the setting of diabetes mellitus,chronic renal failure, and other pruritic conditions,and this case represents a rare association withdermatomyositis, which may ultimately be helpful inelucidating the pathophysiology of this perforatingdisorder...
December 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28316994/multiple-factors-involved-in-the-pathogenesis-of-white-matter-lesions
#11
REVIEW
Jing Lin, Dilong Wang, Linfang Lan, Yuhua Fan
White matter lesions (WMLs), also known as leukoaraiosis (LA) or white matter hyperintensities (WMHs), are characterized mainly by hyperintensities on T2-weighted or fluid-attenuated inversion recovery (FLAIR) images. With the aging of the population and the development of imaging technology, the morbidity and diagnostic rates of WMLs are increasing annually. WMLs are not a benign process. They clinically manifest as cognitive decline and the subsequent development of dementia. Although WMLs are important, their pathogenesis is still unclear...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28300880/acquired-perforating-dermatosis-in-a-patient-with-chronic-renal-failure
#12
Karen de Almeida Pinto Fernandes, Lourenço de Azevedo Lima, Juliana Chaves Ruiz Guedes, Ricardo Barbosa Lima, Antônio Macedo D'Acri, Carlos José Martins
Perforating dermatoses are a group of skin diseases characterized by transepidermal elimination of dermal material. The disease is divided into two groups: the primary group and the secondary group. The classical or primary perforating dermatoses are subdivided into four types according to the eliminated dermal materials: Kyrle disease, perforating reactive collagenosis, elastosis perforans serpiginosa, and perforating folliculitis. The secondary form is known as acquired perforating dermatosis. The term was proposed in 1989 by Rapini to designate the perforating dermatoses affecting adult patients with systemic disease, regardless of the dermal materials eliminated...
September 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28300323/acquired-perforating-dermatosis-clinicopathological-study-of-31-cases-emphasizing-pathogenesis-and-treatment
#13
A J García-Malinis, E Del Valle Sánchez, M P Sánchez-Salas, E Del Prado, C Coscojuela, Y Gilaberte
BACKGROUND: Acquired perforating dermatosis (APD) is a rare group of skin disorders of unknown aetiology and pathogenesis and is associated with several systemic diseases. OBJECTIVE: We review the clinicopathological features, associated systemic diseases and treatment response in a series of APD patients. METHODS: We conducted a retrospective observational study of all patients histologically diagnosed with APD in Hospital San Jorge (Huesca, Spain) between 2002 and 2014...
October 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28202707/cadasil-accelerated-by-acute-hypotension-arterial-and-venous-contribution-to-leukoaraiosis
#14
Jacqueline A Pettersen, Julia Keith, Fuqiang Gao, J David Spence, Sandra E Black
OBJECTIVE: To underline the importance of blood pressure regulation in cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) and to describe changes that occur in the veins in this condition, specifically venous collagenosis associated with leukoaraiosis. METHODS: Case report with neuroimaging and pathologic data. RESULTS: A 61-year-old man with genetically confirmed CADASIL was initially lucid following a motor vehicle accident but subsequently became hypotensive (60/40 mm Hg) due to an open femur fracture and required intubation...
March 14, 2017: Neurology
https://www.readbyqxmd.com/read/28002530/visceral-and-tissular-reactivity-in-acute-heart-failure-due-to-supraventricular-tachyarrhythmia-in-a-young-patient
#15
Maria Cristina Beznă, Doina Cârstea, Marinela Beznă, Octavian Istrătoaie, Ionela Cristina Deliu, Petru Răzvan Melinte
Observation of major pathological alterations in a young person involves etiological and clinical justifications, in order to properly assess, treat and control these conditions. The aim of this paper is to present severe, acute pathological lesions, installed in a young person, secondary to hypodiastolic heart failure, due to persistent supraventricular tachyarrhythmia, triggered by a post-traumatic external stimulus, with complete remission post-electrical conversion. Pathological and clinical modification are revealed, in a young person, shortly after a minor thoracic trauma, in the absence of traumatic injury but with high-frequency palpitations onset and progressive installation of vascular, visceral and interstitial stasis modifications, as well as of vascular and tissular hypoperfusion with reactive vasoconstriction...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27981367/-cardiac-causes-of-chest-pain
#16
REVIEW
C Wächter, B Markus, B Schieffer
Because of the life-threatening character and a high prevalence in emergency rooms, cardiac causes are important differential diagnoses of acute chest pain with the need for rapid clarification. In this context the working diagnosis "acute coronary syndrome" (ACS) plays a major role. In a synopsis of the clinical presentation, medical history, electrocardiogram and analysis of cardiac biomarkers, ST-segment elevation myocardial infarction (STEMI), non-ST-segment elevation myocardial infarction (NSTEMI) and unstable angina pectoris can be specified as entities of ACS...
January 2017: Der Internist
https://www.readbyqxmd.com/read/27846744/a-case-of-rheumatoid-vasculitis-with-acquired-reactive-perforating-collagenosis
#17
Takaharu Ikeda, Naoya Mikita, Fukumi Furukawa, Yoshifumi Iwahashi
A 55-year-old man with rheumatoid arthritis presented hyperkeratotic erythematous papules with crusts or blisters on his limbs and buttocks. A histological study showed acquired reactive perforating collagenosis. Soon, skin lesions changed to umbilicated lesions with black necrosis, and the scar from his skin biopsy ulcerated with induration due to rheumatoid vasculitis. Systemic corticosteroids and tacrolimus administration resolved the rheumatoid arthritis and skin lesions. Rheumatoid vasculitis with acquired reactive perforating collagenosis has not been reported previously...
November 16, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27772846/diffuse-collagenosis-of-the-gastrointestinal-tract-a-clinicopathological-study-of-10-cases
#18
Carrie Gallivan, Ian Brown, Namrata Setia, Christophe Rosty, Gregory Y Lauwers
No abstract text is available yet for this article.
February 2016: Pathology
https://www.readbyqxmd.com/read/27747306/chemotherapeutic-efficacy-of-phosphodiesterase-inhibitors-in-chagasic-cardiomyopathy
#19
Jian-Jun Wen, Xianxiu Wan, John Thacker, Nisha Jain Garg
BACKGROUND: Chagasic cardiomyopathy (CCM) caused by Trypanosoma cruzi (Tc) infection is prevalent in Latin America and recognized as an emerging infectious heart disease in the US. The NO-cGMP-PKG1α pathway maintains cardiac homeostasis and inotropy and may be disturbed due to phosphodiesterase (PDE5) mediated cGMP catabolism in CCM. METHODS AND RESULTS: C57BL/6 mice were infected with Tc, and at the end of acute parasitemia (i.e. 45 days post-infection), treated with sildenafil (SIL, 1 mg/kg) twice per week for 3 weeks...
June 2016: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/27472707/acquired-reactive-perforating-collagenosis-a-report-of-a-typical-case
#20
Chengwen Fei, Yao Wang, Yu Gong, Hui Xu, Qian Yu, Yuling Shi
BACKGROUND: Reactive perforating collagenosis (RPC) is a rare form of transepithelial elimination, in which altered collagen is extruded through the epidermis. There are 2 types of RPC, acquired RPC (ARPC) and inherited RPC, while the latter is extremely rare. Here we report on 1 case of ARPC. METHODS: A 73-year-old female was presented with strongly itchy papules over her back and lower limbs for 3 months. She denied the history of oozing or vesiculation. A cutaneous examination showed diffusely distributed multiple well-defined keratotic papules, 4 to 10 mm in diameter, on the bilateral lower limbs and back as well as a few papules on her chest and forearm...
July 2016: Medicine (Baltimore)
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