scholarly journals Multi Sistem Histiositosis Sel Langerhans pada Anak Laki-Laki Usia 2 Tahun

2022 ◽  
Vol 7 (1) ◽  
pp. 182
Author(s):  
Budi Eko Prasetyorini ◽  
Fatimah Fitriani ◽  
Endra Yustin Elistasari ◽  
Prasetyadi Mawardi ◽  
Muhammad Riza
Keyword(s):  
S 100

Histiositosis sel Langerhans (HSL) adalah kelainan langka yang ditandai dengan akumulasi dan proliferasi sel dendritik (sel langerhans). Insidensi terjadi 2-9 kasus dari 1.000.000 anak per tahun, rata-rata kasus terjadi pada anak berusia kurang dari 3 tahun. Kulit sebagai organ kedua yang paling banyak terlibat memberikan manifestasi klinis berupa krusta atau papul bersisik. Insidensi HSL cukup langka, tanda dan gejala yang bervariasi menyebabkan sulitnya mendiagnosis dalam waktu singkat. Seorang anak laki-laki usia 2 tahun datang dengan keluhan bintil kemerahan pada area kepala. Bintil kemerahan bertambah berat dan semakin meluas hingga bagian badan. Pemeriksaan fisik terdapat papul bersisik berwarna merah kecoklatan pada area kulit kepala, dahi, belakang telinga, leher dan trunkus. Pemeriksaan histopatologi menunjukan epidermis sebagian tersusun intak, dermis dengan sebukan sel histiosit, sel plasma, eosinofil, kesan sel mast dan leukosit PMN. Pemeriksaan imunohistokimia CD117 ditemukan sel langerhans pada sebagian sel dan ditemukan sel langerhans dengan pewarnaan CD117, CD-1a dan IHC S-100 dari trunkus anterior. Diagnosis HSL ditegakkan berdasarkan temuan histopatologi pada dermis terdapat sebukan sel histiosit dan imunohistokimia ditemukan sel langerhans. Pasien mendapat terapi sistemik berupa kemoterapi dan terapi topikal pada lesi kulit krim dengan krim mometason dan salep gentamisin pada area erosi. Pengamatan pada hari ke 30 perawatan pasien menunjukan perbaikan sistemik dan lesi kulit. HSL merupakan kasus jarang. Pemeriksaan biopsi histopatologi dapat menegakkan diagnosis definitif dengan ditemukannya morfologi sel langerhans atau granula Birbeck yang dikonfirmasi pemeriksaan immunofluoresen protein S100 positif, antigen CD1a atau langerin immuhistokimia dengan menggunakan mikroskop elektron. Berdasarkan keterlibatan organ HSL diklasifikasikan menjadi single sistem HSL dan multi sistem HSL. Tatalaksana bergantung pada kriteria klasifikasi HSL. Multi sistem HSL memiliki prognosis buruk karena keterlibatan organ berisiko dan regresi spontan jarang terjadi

JALLOY-S

Alloy Digest ◽  
1963 ◽  
Vol 12 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Yield Strength ◽  
Physical Properties ◽  
High Strength ◽  
Heat Treating ◽  
Temperature Performance ◽  
Trade Name ◽  
S 100 ◽  
Minimum Yield

Abstract Jalloy-S is the trade name of a group of constructional steels which combine high strength with welding and forming ease. They are available in three grades according to their minimum yield strength, namely, Jalloy-S-90, Jalloy-S-100, and Jalloy-S-110. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-144. Producer or source: Jones & Laughlin Steel Corporation.

Worst-case arbitration time in S-100-type computer bus systems

1982 ◽  
Vol 18 (19) ◽  
pp. 833 ◽  
Author(s):  
D.M. Taub
Keyword(s):  
Worst Case ◽  
S 100

Gangliocytic Paraganglioma of the Duodenum: Case Report

1987 ◽  
Vol 73 (4) ◽  
pp. 425-429 ◽  
Author(s):  
Stefania Dante ◽  
Giuseppe Viale ◽  
Paolo Dalla Palma
Keyword(s):  
Case Report ◽  
Ganglion Cells ◽  
Neuron Specific Enolase ◽  
Gangliocytic Paraganglioma ◽  
Spindle Cells ◽  
S 100 ◽  
Neurofilament 200

A case of gangliocytic paraganglioma of the second portion of the duodenal loop is presented. The tumor was polypoid and, histologically, composed of mature ganglion cells, spindle cells and epithelial-like cells. Immunocytochemical examination demonstrated the presence of neurofilament 200 K and S-100 protein only in the first two types of cells; all the cells were positive for neuron-specific enolase. The reaction for cytokeratin was negative in all neoplastic components. According to morphologic and immunocytochemical findings, we suggest a hamartomatous nature of this entity.

scholarly journals Preoperatively diagnosed gastric collision tumor with mixed adenocarcinoma and gastrointestinal stromal tumor: a case report and literature review

2021 ◽  
Author(s):  
Kunihiko Matsuno ◽  
Yoshikazu Kanazawa ◽  
Daisuke Kakinuma ◽  
Nobutoshi Hagiwara ◽  
Fumihiko Ando ◽  
...  
Keyword(s):  
Gastrointestinal Stromal Tumor ◽  
Distal Gastrectomy ◽  
Submucosal Tumor ◽  
Smooth Muscle Actin ◽  
Collision Tumor ◽  
Stromal Tumor ◽  
Lower Body ◽  
Muscle Actin ◽  
First Case ◽  
S 100

AbstractReports of gastric collision tumors, comprising adenocarcinoma and gastrointestinal stromal tumor, are extremely rare. Here, we report the case of a 68-year-old male who was diagnosed with a lower-body, moderately differentiated, tubular-type adenocarcinoma and submucosal tumor and underwent an elective D2 distal gastrectomy. The tumor cells of the gastrointestinal stromal tumor were positive for H-caldesmon and CD117, weakly positive for smooth muscle actin and DOG-1, and negative for desmin, S-100 protein, CD31, and AE1/AE3. The tumor had grown into a mixed form of adenocarcinoma and gastrointestinal stromal tumor. Thus, we report the first case of a preoperatively diagnosed collision tumor in the stomach consisting of adenocarcinoma and gastrointestinal stromal tumor.

Oncocytic Lipoadenoma: Report of 3 Rare Cases Involving the Parotid Gland, Including a Synchronous Presentation With Paraganglioma of the Right Carotid Bifurcation and Literature Review

2021 ◽  
pp. 106689692110219
Author(s):  
John L.S. Cunha ◽  
Marco A. Peñalonzo ◽  
Ciro D. Soares ◽  
Bruno A.B. de Andrade ◽  
Mário J. Romañach ◽  
...  
Keyword(s):  
English Language ◽  
Smooth Muscle Actin ◽  
Salivary Gland Tumor ◽  
Surgical Excision ◽  
Carotid Bifurcation ◽  
Alpha Smooth Muscle Actin ◽  
S 100 ◽  
The Right ◽  
Adequate Management ◽  
Adipose Cells

Oncocytic lipoadenoma (OL) is a rare salivary gland tumor characterized by the presence of oncocytic cells and mature adipose tissue. To date, only 30 cases of OL have been reported in the English-language literature. We present 3 additional OL cases involving the parotid, including a synchronous presentation with paraganglioma of the right carotid bifurcation. Microscopically, both the OLs were composed of a mixed population of oncocytes and adipocytes in varying proportions surrounded by a thin, connective tissue fibrous capsule. Oncocytes were positive for pan-cytokeratins (CKs) AE1/AE3, epithelial membrane antigen, CK5, CK7, CK14, CK18, and CK19. Calponin, p63, alpha-smooth muscle actin, and carcinoembryonic antigen were negative. Vimentin and S-100 protein were positive only in adipose cells. Despite distinctive morphologic features, OL is often misdiagnosed, given its rarity. We hope to contribute to surgeons’ and pathologists’ awareness and knowledge regarding the existence of this tumor and provide adequate management through conservative surgical excision.

scholarly journals 602 STING agonist-based treatment promotes vascular normalization and tertiary lymphoid structure formation in the therapeutic melanoma microenvironment

2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A637-A637
Author(s):  
Manoj Chelvanambi ◽  
Ronald Fecek ◽  
Jennifer Taylor ◽  
Walter Storkus
Keyword(s):  
T Cells ◽  
T Cell ◽  
Cd8 T Cells ◽  
Immune Cell ◽  
Ex Vivo ◽  
In Vitro Assays ◽  
Type I ◽  
Vascular Normalization ◽  
S 100 ◽  
Transcriptional Changes

BackgroundThe degree of immune infiltration in tumors, especially CD8+ T cells, greatly impacts patient disease course and response to interventional immunotherapy. Hence, enhancement of TIL prevalence is a preferred clinical endpoint, one that may be achieved via administration of agents that normalize the tumor vasculature (VN) leading to improved immune cell recruitment and/or that induce the development of local tertiary lymphoid structures (TLS) within the tumor microenvironment (TME).MethodsLow-dose STING agonist ADU S-100 (5 μg/mouse) was delivered intratumorally to established s.c. B16.F10 melanomas on days 10, 14 and 17 post-tumor inoculation under an IACUC-approved protocol. Treated and control, untreated tumors were isolated at various time points to assess transcriptional changes associated with VN and TLS formation via qPCR, with corollary immune cell composition changes determined using flow cytometry and immunofluorescence microscopy. In vitro assays were performed on CD11c+ BMDCs treated with 2.5 μg/mL ADU S-100 (vs PBS control) and associated transcriptional changes analyzed via qPCR or profiled using DNA microarrays. For TCRβ-CDR3 analyses, CDR3 was sequenced from gDNA isolated from enzymatically digested tumors and splenocytes.ResultsWe report that activation of STING within the TME leads to slowed melanoma growth in association with increased production of angiostatic factors including Tnfsf15 (Vegi), Cxcl10 and Angpt1, and TLS inducing factors including Ccl19, Ccl21, Lta, Ltb and Tnfsf14 (Light). Therapeutic responses from intratumoral STING activation were characterized by increased vascular normalization (VN), enhanced tumor infiltration by CD8+ T cells and CD11c+ DCs and local TLS neo-genesis, all of which were dependent on host expression of STING. Consistent with a central role for DC in TLS formation, ex vivo ADU S-100-activated mCD11c+ DCs also exhibited upregulated expression of TLS promoting factors including lymphotoxin-α (LTA), IL-36, inflammatory chemokines and type I interferons. TLS formation was associated with the development of a therapeutic TIL TCR repertoire enriched in T cell clonotypes uniquely detected within the tumor but not the peripheral circulation in support or local T cell cross-priming within the TME.ConclusionsOur data support the premise that i.t. delivery of STING agonist promotes a pro-inflammatory TME in support of VN and TLS formation, leading to the local expansion of unique TIL repertoire in association with superior anti-melanoma efficacy.

scholarly journals Relationship of nerve diameter using S-100 immunohistochemistry with Hirschsprung-associated enterocolitis degrees

2021 ◽  
Vol 4 ◽  
pp. 100227
Author(s):  
Yelisa Tanete Patandianan ◽  
Farid Nurmantu ◽  
Nita Mariana ◽  
Upik Andriani Miskad ◽  
Andi Alfian Zainuddin ◽  
...  
Keyword(s):  
S 100 ◽  
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