Rocky Mountain Veterinary Clinical Pathology

Rocky Mountain Veterinary Clinical Pathology Veterinary diagnostics, education, and consultation with a personable approach Join us in enhancing the health and longevity of beloved pets.

Rocky Mountain Veterinary Clinical Pathology offers affordable and rapid veterinary diagnostic services, specializing in cytology and hematology. By partnering with a limited number of clinics, we ensure personalized attention and reliable support for clinicians and their patients. Our commitment to education empowers clinical teams with knowledge and skills, fostering better animal healthcare.

🔬Pleomorphic sarcomaHow many criteria of malignancy can you spot?
08/14/2025

🔬Pleomorphic sarcoma
How many criteria of malignancy can you spot?

Striated muscle from an aspirate sample 💪
08/11/2025

Striated muscle from an aspirate sample 💪

👑🔬Crown cells!These mesenchymal cells are multinucleated with their nuclei arranged on the periphery of the cell. They c...
08/07/2025

👑🔬Crown cells!
These mesenchymal cells are multinucleated with their nuclei arranged on the periphery of the cell. They can be observed in soft tissue sarcoma, particularly perivascular wall sheath tumors.

Hematoidin crystals in a hemorrhagic sample 🤩These amber colored crystals form in low oxygen conditions (tissues and bod...
08/05/2025

Hematoidin crystals in a hemorrhagic sample 🤩
These amber colored crystals form in low oxygen conditions (tissues and body cavities) as a result of prior hemorrhage and erythrocyte degradation. This sample also has a fair bit of hemosiderin (amorphous blue/black pigment), which is another product of red blood cell breakdown.

✨🫧 Liposarcoma (Canine) 🫧✨This was an approximately 3-4 inch subcutaneous mass on the neck of a dog with unknown duratio...
06/16/2025

✨🫧 Liposarcoma (Canine) 🫧✨

This was an approximately 3-4 inch subcutaneous mass on the neck of a dog with unknown duration. Upon examination, aggregates of adipose tissue were initially observed, but upon continued evaluation there was a population of finely vacuolated spindle cells with atypia (bi-/multinucleation, multiple prominent nucleoli, and mild to moderate anisocytosis and anisokaryosis) - raising concern for an underlying spindle cell tumor, with liposarcoma favored. Grade 2 liposarcoma was confirmed on histopathologic evaluation.

This is a great example of why it is important to spend a little time evaluating a cytology (even what appears to be a straight forward lipoma)!

The beauty of a lipoma 🫧
04/25/2025

The beauty of a lipoma 🫧

Some mesothelial cells having a great hair day! (Mesothelial cells showcasing their apical cilia) 🤩
04/18/2025

Some mesothelial cells having a great hair day! (Mesothelial cells showcasing their apical cilia) 🤩

Bland mesothelium noted in a tissue aspirate from an inguinal hernia
03/30/2025

Bland mesothelium noted in a tissue aspirate from an inguinal hernia

Abundant cholesterol crystals and histiocytic inflammation - cytology of a cystic dermal lesion. 🔬
03/25/2025

Abundant cholesterol crystals and histiocytic inflammation - cytology of a cystic dermal lesion. 🔬

Erythroblastic islands from a splenic aspirate. Erythroblastic islands contain a central macrophage (also known as a nur...
03/11/2025

Erythroblastic islands from a splenic aspirate. Erythroblastic islands contain a central macrophage (also known as a nurse cell) that anchors erythroblasts (developing red blood cells) to deliver iron and helpful cytokines for erythrocyte development. 🔬😊

Ventral cervical mass (dog) - cytology revealed a cohesive cell population often present within a lake of poorly defined...
02/25/2025

Ventral cervical mass (dog) - cytology revealed a cohesive cell population often present within a lake of poorly defined cytoplasm. This description/finding is a hallmark for neuroendocrine tissues and neoplasms, and in this case was consistent with a thyroid tumor. Pleomorphism within neuroendocrine tissues can be minimal even in malignant tumors. With that said, we know that a vast majority (90-100%, depending on the study) of thyroid tumors in dogs are non-functional carcinomas. In contrast, thyroid tumors in cats are frequently functional and benign adenomas or adenomatous hyperplasia (

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