Idiopathic multicentric Castleman's disease: a clinicopathologic study in comparison with IgG4-related disease

Oncotarget
Kyoko OtaniYoh Zen

Abstract

The present study aimed to compare clinicopathologic features between idiopathic multicentric Castleman's disease (n=22) and IgG4-related disease (n=26). Histology was analyzed using lymph node and lung biopsies. The expression of IL-6 mRNA in tissue was also examined byin situhybridization and real-time PCR. Patients with idiopathic multicentric Castleman's disease were significantly younger than those with IgG4-related disease (p<0.001). Splenomegaly was observed in only idiopathic multicentric Castleman's disease (p=0.002), while pancreatitis and sialo-dacryoadenitis were restricted to IgG4-related disease (both p<0.001). Serum IgG4 concentrations were commonly elevated at >135 mg/dL in both groups (p=0.270). However, the IgG4/IgG ratio in IgG4-related disease was significantly higher than that in Castleman's disease (p<0.001). Histologically, sheet-like plasmacytosis was highly characteristic of idiopathic multicentric Castleman's disease (p<0.001), while plasmacytic infiltration in IgG4-related disease was always associated with intervening lymphocytes. Similar to laboratory findings, the IgG4/IgG-positive plasma cell ratio, but not the IgG4-positive cell count, was significantly higher in IgG4-related disease (p=0.002). A...Continue Reading

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Methods Mentioned

BETA
PCR
biopsies
biopsy

Software Mentioned

JMP®

Related Concepts

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Castleman Disease

Castleman disease is a rare disorder that involves an overgrowth of cells in the lymph nodes. Unicentric Castleman disease affects one lymph node, usually in the chest or abdomen. Multicentric Castleman disease affects multiple lymph nodes, commonly located in the neck, collarbone, underarm and groin areas. Discover the latest research on Castleman disease here.

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