17 results
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Head&neck, Lymph ... Nodes, and lungs ... Lymph node entirely ... seen within giant cells ... Lymphadenitis #Pathology #LymphNode
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
Signet ring cell ... histiocytes in lymph ... node sinuses! ... #SignetRing #Cell ... #Histiocytes #LymphNode
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... lymphatic system (node ... Responsive to Treatment ... growth, response to treatment ... #differential #algorithm
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
, renal, lung, lymph ... node), high serum ... salivary glands, lymph ... nodes) • Some ... increased IgG4+ cells
Neck Mass - Differential Diagnosis Algorithm
Congenital Neck Mass:
 • Thyroglossal Duct Cyst
 • Branchial Cleft Anomalies
Differential Diagnosis Algorithm ... : • Squamous Cell ... Spread to Cervical Lymph ... Nodes) • Melanoma ... Differential #Diagnosis #Algorithm
Here we see a CT-image.
The azygoesophageal recess is displaced by lymph nodes that compress the left
is displaced by lymph ... nodes that compress ... diagnosis of small cel ... a biopsy of a lymphnode
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
Here is a lymph ... node with florid ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... Pathology #Microscopy #LymphNode
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
from mature B cells ... supraclavicular node ... • Excisional lymph ... node biopsy (diagnostic ... Hodgkin Lymphoma Treatment
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Low or absent NK cell ... marrow, spleen, lymph ... node, or liver ... • Bicytopenia Treatment ... diagnosis #management #treatment
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
macrophages and T cells ... lungs and regional lymph ... nodes Risk Factors ... : • Pleura • Lymph ... nodes • Central