Surgical Specimen

A surgical specimen is tissue, an organ, or another material removed during an operation and submitted for laboratory examination, providing essential evidence for diagnosis and treatment planning. After collection, the specimen is labeled, oriented, measured, and described during gross examination; representative sections may then be preserved, processed, and evaluated microscopically by histopathology. Findings can identify benign or malignant disease, determine tumor type, assess margins and stage, and reveal infection or other pathological changes. Accurate specimen handling and documentation are therefore critical for patient care, surgical decision-making, and research into disease mechanisms and therapeutic outcomes.

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Research

JoVE Journal - Medicine

Transcriptomic Analysis of Human Retinal Surgical Specimens Using jouRNAl

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Cited by 6 •

2013

We used retinal samples from retinectomy for a transcriptomic analysis of retinal detachment. We developed a procedure that allows RNA conservation between the surgical blocks and the laboratory. We standardized a protocol to purify RNA by cesium chloride ultracentrifugation to assure that the purified RNAs are suitable for microarray analysis.

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JoVE Journal - Medicine
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Method for Novel Anti-Cancer Drug Development using Tumor Explants of Surgical Specimens

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Cited by 8 •

2011

Here, we established a method for drug efficacy testing with surgical specimens of brain tumors, termed “tumor explant method”. With this method, we can evaluate drug efficacy without breaking the microenvironment of solid tumors. To validate reliability of this method, we describe representative data with our glioma specimen treated with the current first-line chemotherapeutic agent, temozolomide.

Improved Protocol For Laser Microdissection Of Human Pancreatic Islets From Surgical Specimens

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Cited by 27 •

2013

Laser microdissection is a technique that allows the recovery of selected cells from minute amounts of parenchyma. Here we describe a protocol for acquiring human pancreatic islets from surgical specimens to be used for transcriptomic studies. Our protocol improves the intrinsic autofluorescence of human beta cells, thus facilitating their collection.

Surgical Robot-Assisted Transanal Specimen Extraction Radical Sigmoidectomy Without an Auxiliary Abdominal Incision

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2025

Robot-assisted natural orifice specimen extraction surgery is a minimally invasive technique that combines robotic precision with natural orifice specimen extraction. A 67-year-old patient successfully underwent the procedure in 290 min, with minimal bleeding and no residual cancer. This approach minimized abdominal trauma, reduced complications, and enabled a quick recovery.

Research

JoVE Journal - Medicine
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Optimization of High Grade Glioma Cell Culture from Surgical Specimens for Use in Clinically Relevant Animal Models and 3D Immunochemistry

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Cited by 43 •

2014

Protocol for propagation of dissociated high grade glioma surgical specimens in serum-free neurosphere medium to select for cells with cancer stem cell phenotype. For specimens that fail to grow as neurospheres, an alternative protocol is suggested. A paraffin embedding technique for maintaining the 3D neurosphere architecture for immunocytochemistry is described.

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