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Fig. 2 | Diagnostic Pathology

Fig. 2

From: Inflammatory pseudotumor of Castleman disease and IgG4-related disease masquerading as kidney malignancy

Fig. 2

Histopathologic features of the mass in case 1. (A) Gross observation of the mass in the right renal pelvis. (B) Abundant lymphoid tissue with lymphatic follicles in the specimen (40×). (C) Numerous plasma cells infiltrate the paracortex zone and lymphatic sinus (100×). (D) Eosinophilic deposits were observed in the follicle centers (200×). (E,F) Immunohistochemistry showed that the interfollicular area was infiltrated by CD38 (E) positive and CD138 (F) positive plasma cells (200×)

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Diagnostic Pathology

ISSN: 1746-1596

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