![Figure 1](https://www.mjhid.org/mjhid/article/download/2017.044/version/963/html/18292/figure1.jpg) |
Figure 1. A
(H&E,400x) – Bone marrow with increased cellularity. Atypical,
small and hyperchromatic lymphocytes. Immunohistochemistry confirms
CLL/SLL diagnosis. B (H&E,
400x) – Mediastinum lymph node with dense malignant cells infiltration.
Note the atypical features. Similar pattern was observed in the lung. C (Immunohistochemistry, CD3, 400x) – The neoplasm had immunophenotype T CD3+. D
(Immunohistochemistry, Ki67, 400x) – High proliferation index indicated
by Ki67 of 90%. Morphological and immunohistochemistry findings have
indicated the Peripheral T-Cell Lymphoma, not otherwise specified
(PTCL, NOS) diagnosis. E (H&E, 100x) – Lung nodule with necrosis, fibrosis and granulomatous reaction. F
(Grocott-Gomori, 400x) – Lung nodule was compatible with
histoplasmosis, whose etiological agents were detected by
Grocott-Gomori staining. |