Related Experiment Video
Updated: Jul 11, 2026

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
Published on: June 18, 2021
[Spontaneuos paracavernous haematoma]
R H Martinez-Rodríguez1, C Gutiérrez-Ruiz, F Rodríguez-Escovar
1Servicio de Urología, Fundación Puigvert, Barcelona. dr.rmartinez@yahoo.es
This study describes a spontaneous perineal hematoma linked to the corpora cavernosa without direct injury or erectile dysfunction. The case analyzes the condition's causes, diagnosis, and treatment.
Area of Science:
- Urology
- Andrology
- Vascular Surgery
Background:
- Perineal hematomas are typically associated with trauma or surgical complications.
- Spontaneous hematomas, particularly those involving the corpora cavernosa without injury, are rare clinical occurrences.
Observation:
- A case of spontaneous perineal hematoma was observed.
- The hematoma was dependent on the corpora cavernosa but showed no signs of direct injury to these structures.
- The patient did not present with any associated erectile dysfunction.
Findings:
- The etiology of this spontaneous perineal hematoma was investigated.
- Diagnostic approaches for differentiating this condition from traumatic causes were analyzed.
- Treatment strategies for spontaneous perineal hematomas were evaluated.
Implications:
- This case expands the understanding of spontaneous perineal hematoma etiology.
- Highlights the importance of considering non-traumatic causes in the differential diagnosis.
- Informs clinical management and treatment protocols for rare genitourinary presentations.
Related Concept Videos
Hemorrhagic Stroke ll: Pathophysiology
Hemorrhagic Stroke l: Introduction
Vascular Spasm
Cerebral Edema ll: Pathophysiology
Increased Intracranial Pressure l: Introduction
Extrinsic and Intrinsic Pathways of Hemostasis
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which forms a...

