Staghorn vessels
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Staghorn vessels, also known as hemangiopericytoma-like vessels (abbreviated HPC-like vessels), are a non-specific finding seen in a number of tumours.[1]
Microscopic
Features:
- Small branching vessels:
- "Antler-like" or "staghorn-like" appearance.
Images
SFT - high mag. (WC/Nephron)
Synovial sarcoma - intermed. mag. (WC/Nephron)
Gross:
Differential diagnosis
Entities in which staghorn vessels are seen:
- Solitary fibrous tumour/hemangiopericytoma.[1]
- Malignant peripheral nerve sheath tumour (MPNST).[1]
- Synovial sarcoma.[1]
- Myofibroma.[1]
Others:[1]
- Mesenchymal chondrosarcoma.
- Infantile fibrosarcoma.
- Pleomorphic undifferentiated sarcoma.
- Leiomyosarcoma.
- Endometrial stromal sarcoma.
- Malignant mesothelioma.
- Thymoma
- Sarcomatoid carcinoma.
- Malignant melanoma.
- Glomus tumour.[2]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Nappi, O.; Ritter, JH.; Pettinato, G.; Wick, MR. (Aug 1995). "Hemangiopericytoma: histopathological pattern or clinicopathologic entity?". Semin Diagn Pathol 12 (3): 221-32. PMID 8545589.
- ↑ Slone, SP.; Moore, GD.; Parker, LP.; Rickard, KA.; Nixdorf-Miller, AS. (Jan 2010). "Glomus tumor of the ovary masquerading as granulosa cell tumor: case report.". Int J Gynecol Pathol 29 (1): 24-6. doi:10.1097/PGP.0b013e3181b0b771. PMID 19952942.