Cell block preparation of ascites fluid revealing what type of tumor? Answer: buff.ly/3Y89gqn #PathArt #PathTwitter #MedTwitter #CytoPath buff.ly/3LqjwTA

Cerebrospinal fluid revealing large, mitotically active cells. What is the diagnosis? Answer: buff.ly/3LtdX6J #PathArt #PathTwitter #MedTwitter #CytoPath buff.ly/4bKpDwx

Excision of a minor salivary gland mass showing what type of tumor? Answer: buff.ly/3YclqyD #PathArt #PathTwitter #MedTwitter buff.ly/3Y5ti4T

Iron stain, bronchoalveolar lavage #PathArt buff.ly/4d1hMf2

Bronchoalveolar lavage revealing a parasite coiled among alveolar macrophages. What is the diagnosis? Answer: buff.ly/3Y4I8sB #IDTwitter #PathTwitter #MedTwitter #CytoPath #Cytopathology #Cytology #PathArt buff.ly/3Y8s74X

Resection of a neck mass revealing what type of tumor? Answer: buff.ly/3Y9V3cS #PathArt #PathTwitter #MedTwitter buff.ly/4d7MOC4

Resection of a parotid gland mass revealing what type of tumor? Answer: buff.ly/45jYFKS #PathArt #PathTwitter #MedTwitter buff.ly/4f6VIBM

Pleural fluid revealing a metastatic tumor of what origin? Answer: buff.ly/3zVIVBS #PathArt #MedTwitter #PathTwitter buff.ly/4bOyYmY

Ascites fluid containing metastatic cholangiocarcinoma. Tumor cells with signet ring morphology are seen. What cytologic preparation is seen here? Answer: buff.ly/38HXxI4 #CytoPath #Cytopathology #PathArt #MedTwitter #PathTwitter

Excision of a mass from the parapharyngeal space reveals tumor cells arranged in an organoid (zelballen) pattern. What is the diagnosis? Answer: buff.ly/3Rd49yz #PathArt #PathTwitter #MedTwitter

Fine needle aspiration of a neck lymph node. What is the diagnosis? Answer: buff.ly/4brPydF #PathArt #PathTwitter #Cytopath #Pathology #Cytology

Liver resection specimen revealing a tumor multinucleated giant cells, pleomorphic tumor cells, and extensive clear cell change. What is the diagnosis? Answer: buff.ly/3wxl4E0 #PathTwitter #PathArt #MedTwitter

Pleural fluid containing pleomorphic tumor cells with vacuolated cytoplasm are seen on Diff Quick stain. What is the diagnosis? Answer: buff.ly/3PWicsx #PathArt #CytoPath #Cytopathology #PathTwitter #MedTwitter

Chondrocytes in lacunae in a background of chondromucoprotein. What type of cartilage is seen? Answer: buff.ly/39795Vu #PathArt #PathTwitter #MedTwitter

Bone marrow biopsy from a patient with untreated HIV revealing involvement by Kaposi sarcoma. Spindled tumor cells are seen forming irregular, dilated vascular spaces. What stain is positive in tumor cells? Answer: buff.ly/3fCYYdO #PathTwitter #PathArt

Fine needle aspiration of a fluctuant mass anterior to the sternocleidomastoid revealing watery contents, keratin debris, and cholesterol crystals (pictured). What did the subsequent surgical resection reveal? Answer: buff.ly/3NFWt6c #PathArt #PathTwitter #MedTwitter

Cervical Pap test showing what type of lesion? Answer: buff.ly/4caQBht #PathArt #CytoPath #MedTwitter #PathTwitter buff.ly/4aSFdFV

Fine needle aspiration of a mass in the tail of the pancreas reveals monotonous tumor cells that are loosely cohesive and lining capillary sized blood vessels. What is the diagnosis? buff.ly/4cbQu5n #PathArt #CytoPath #PathTwitter #MedTwitter buff.ly/4bNpzx9

Resection of a parotid gland mass revealing what type of tumor? Answer: buff.ly/45jYFKS #PathArt #PathTwitter #MedTwitter buff.ly/4cbWVoZ

Voided urine containing what type of crystals? Answer: buff.ly/45ecz0Y #PathArt #CytoPath #PathTwitter buff.ly/45eczhu