9 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 ... Lymphadenitis #Pathology #LymphNode ... #Clinical #Microscopy
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
Here is a lymph ... node that is lymphoid-depleted ... nodes from patients ... PatternC #Pathology #Microscopy ... #LymphNode #Clinical
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
Signet ring cell ... histiocytes in lymph ... node sinuses! ... #Histiocytes #LymphNode ... Pathology #Clinical #Microscopy
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
Here is a lymph ... node with florid ... Monocytoid B cells ... PatternA #Pathology #Microscopy ... #LymphNode #Clinical
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
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
PR3-ANCA): • Microscopic ... Mucocutaneous lymph ... node syndrome ... episcleritis as well ... Dx: GPA, EGPA, microscopic
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
CRP GCA (Giant Cell ... Multinucleated giant cells ... Mucocutaneous lymph ... node syndrome ... (PR3-ANCA)): Microscopic
Langerhans Cell Histiocytosis (LCH)

Granulomatous Lesions comprising langerin-positive histiocytes and an inflammatory infiltrate can arise in virtually
Langerhans Cell ... of Langerhans cells ... Lymphadenopathy: Swollen lymph ... nodes ... Birbeck granules (EM