DermKnowledgeBASE: Plasmacytosis

Plasmacytosis

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The text is the summary of recent articles on Plasmacytosis at 75 thresold from National Library of Medicine (NLM). This information is subject to NCBI's Disclaimer and Copyright notice.


In this observational study, the clinicopathologic presentation and the immunohistochemical profile of five cases who initially presented with a soft tissue Mass which is an extremely rare presentation of this rare type of non-Hodgkin lymphoma that was diagnosed at our center with peripheral blood and Bone marrow involvement and the clinicopathologic presentation, immunohistochemical profile, and response to treatment on follow-up are correlated with the literature review [1]. One case had a fulminant and aggressive course and was fatal within 2 months of diagnosis [2]. In conclusion, useful data for a differential diagnosis appear to be age, affected organs, the serum IgG4/IgG ratio, sheet-like plasmacytosis in biopsies, and the IgG4/IgG-positive cell ratio on immunostaining [3]. The present study aimed to compare clinicopathologic features between checkpoint inhibitor-induced liver injury and acutely presenting autoimmune hepatitis or idiosyncratic Drug-induced liver injury [4]. Histologically, all biopsies showed predominantly lobular hepatitis with milder portal Inflammation [5].

We report a case of a 67-year-old Woman with an Inflammatory ulcerated Plaque in the left masseter region [6]. Few cases of isolated Benign primary cutaneous plasmacytosis have been described, particularly in Children [7]. This rare type of MCL can be misdiagnosed clinically and histologically as CD [8]. Clinical, endoscopic, fecal and histological activities were determined using the partial Mayo subscore, Mayo endoscopic subscore and modified Mayo endoscopic subscore, fecal calprotectin and Geboes score and the presence of basal plasmacytosis, respectively [9]. In our experience, we found that marked Bone marrow eosinopenia was a very frequent accompaniment of VL and might be a useful clue for the diagnosis, which indicates the opportunity for further morphological assessment [10].

Peripheral blood and Bone marrow aspiration of patients with Bone marrow aspirate confirmed VL were examined [11]. These observations highlight the need for IgG4 immunohistochemical staining of esophageal biopsies especially in patients with Mucosal ulceration, Chronic Inflammation, and plasmacytosis on biopsy [12]. Using the immunocompetent 5T33MM model, we demonstrated a significant reduction in BM-plasmacytosis and M-protein levels in mice infected with T [13]. Disease stage, gender, pathological fractures, Bone marrow plasmacytosis, plasmacytomas and lymphocyte counts were comparable, emphasising the difficulty of identifying these patients [14]. A severe Mayo endoscopy subscore was most common among those with severe acute and Chronic Inflammation, although this relationship was not Linear [15].

We present a case of cutaneous plasmacytosis in a 46-year-old Korean male [16]. We highlight the initial Pathology findings, including non-caseating granulomas, sialadenitis, and a notable plasmacytosis, from Biopsy of the left retromolar pad area, which triggered further testing for CD [17]. We present here a rare case of cutaneous plasmacytosis from India of Mongolian descent [18]. Immuno histochemistry was done from both skin and lymph node biopsies [19]. Persistent Renal Failure in myeloma is commonly caused by tubular nephropathy due to circulating immunoglobulins and free light chains [20].

Myeloma cast nephropathy is characterized by crystalline precipitates of monoclonal light chains within distal tubules [21]. Immunoglobulin crystallization rarely occurs intracellularly, within Proximal tubular cells (light chain Proximal tubulopathy) and interstitial histiocytes (crystal-storing histiocytosis) [22]. Serum and urine immunofixation electrophoresis showed a free κ monoclonal band [23]. Bone marrow aspiration and Biopsy revealed hypercellularity with marked plasmacytosis [24]. Immunohistochemical examination indicated intense staining for κ light chains within casts, histiocytes, and tubular epithelial cells [25].

According to these results, we confirmed that this patient with myeloma exhibited simultaneous light chain Proximal tubulopathy, crystal-storing histiocytosis, and myeloma cast nephropathy, which were attributed to monoclonal κ light chains [26]. The Axilla seems to be a frequent and characteristic site of involvement and may be a useful clinical clue to the condition [27]. The affected lymph nodes showed colonization of the follicles by clusters of large atypical plasmablasts, but also showed regressive changes with vascular proliferation and interfollicular plasmacytosis, both reminiscent of human herpesvirus 8 (HHV-8) positive multicentric Castleman disease [28]. Because of the retrospective nature of our study, we could only evaluate the results of a single IgG4 test for each patient, but the results pointed to cutaneous plasmacytosis in all 9 patients, who had different stages of the disease [29]. Unicentric CD (UCD) is localized to a single region of lymph nodes [30].

The patient died from abrupt splenic rupture before diagnostic work-up was finished [31].

References: 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ,

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