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CASE 148 (June 2018)

Clinical information

The patient is a 36-year-old woman with progressive edema, 3 weeks evolution. There is no relevant personal or family history. Studies of autoimmunity and infectious diseases: negative. She has been taking "naturopathic" medicines for weight loss for several months.

Serum creatinine: 0.8 mg/dL, BUN; 14 mg/dL. Serum albumin: 2.3 g/dL, total cholesterol: 280 mg/dL, triglycerides: 230 mg/dL. Proteinuria: 4.1 g/24h, in urinalysis there are 3-4 erythrocytes/hpf, leukocytes 1-2/hpf, no cylinders.

See the images.

Figure 1. H&E, X100.

Figure 2. H&E, X400.

Figure 3. H&E, X400.

Figure 4. PAS, X400.

Figure 5. Methenamine-silver, X400.

Figure 6. Masson's trichrome, X400.

Figure 7. EM, original magnification, X2,500.

Figure 8. EM, original magnification, X2,500.

Immunofluorescence for IgA, IgG, IgM, C3, C1q, kappa and lambda: Negative.

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