7 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
Mediastinal Lymph Node Anatomy
1 (Low Cervical): R/L (midline)
2 (Upper paratracheal): R/L (left paratracheal)
3 (Pre-tracheal): A/P
4 (Lower
Mediastinal Lymph ... Node Anatomy 1 ... #Mediastinal #Lymph ... #Node #LymphNode ... #Anatomy
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
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
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