Surgical Procedures Flashcards
(239 cards)
What is a cone specimen?
A cone shaped excision from the cervix, taken using a scalpel or a diathermic loop.
Where are cones, LLETZ or knife cones taken from?
Cervix
Where in the hospital are cones usually carried out?
Colposcopy department
Gynaecology threatres
Local anaesthetic for LLETZ
General anaesthetic for knife
What is the typical description for a cone?
A (shaped) piece of cervix measuring (3D). The os is (description and 2D measurements). Any other significant Macroscopic information.
How is a cone handled at dissection?
Serial slices, all processed in the same orientation giving an inner and an outer piece.
If 50yrs+ cruciate the inner and outer pieces
What is the benefit of a cone procedure?
Allows for treatment of deeper cervical pre-cancerous lesions
Can give a diagnosis or treatment (if shallow) of glandular lesions in the LUS
Allows for visualisation and treatment of pathology on the ecto and endocervical portions of the cetvix
What is the disadvantage of cones?
Can lead to issues with fertility
Pain
Bleeding
Discharge
Stenosis
Risk of late miscarriage
Risk of premature birth
What are the special considerations for cones?
Surface epithelium is fragile, handle with care
Orientation of slices is vital
How is a curettage taken?
The top surface of skin, or a Mucossal lining is removed via a ring shaped tool (curette). It can be combined with diatherm and/or suction
What type of samples are commonly taken via currettage?
Skin
Endometrium (D&C)
POC
Where are curettes specimens usually taken?
G. P.
Colposcopy clinic
Gynaecology threatres
Local anaesthetic
What is a typical description for a currettage?
Skin
Count pieces
Measure
Describe fragments
Endometrium
Describe appearance
Semi-quantitive estimate of volume
POC
Multiple pieces of membanous and haemorrhagic material together measuring, 3 dimensions. Comment of the presence or abscence of fetal tissue. Do not sample any fetal tissue but measure the length
How are currettage usually handled in the lab?
Everything processed for skin and Endometrium
If skin Inking deep margin can help embedding
Embed on edge
Bissect if >5mm
POC process a cassette of placenta tissue.
If molar pregnancy is suspected them more blocks are required, up to 5. Include vesicles
What are the advantages of a currettage?
Removes superficial lesions
Cheap
Little scarring
Relatively un-invasive
What are the disadvantages of currettage specimen?
Used for benign conditions, is problematic if lesion then turns out to be malignant.
Tissue can be burnt at the edge
Margins are not included
What is the aim of a currettage?
skin
Therapeutic and diagnostic
Benign - warts, fleshy moles
Premalignant - actinic keratoses and seborrheic keratoses)
Malignant - BCC, SCC, Bowen’s disease
Endometrium
Therapeutic - Endometra intraepithelial hyperplasia
Uterine polyps
Diagnostic - uterine cancers
What type of specimens are endoscopic biopsies?
Needle cores,
Cold/hot snare
Pinch biopsies
Brushings
Where are endoscopic biopsies taken?
Radiology depae
Endoscopy clinic, can be with anesthetic or not
Also specialist clinics such as colposcopy for hysteroscopy
What is a typical description for endoscopic biopsies?
Count number of biopsies
Measure size
Process all
How are endoscopic biopsies handled in the lab?
With care, delicate and can have crush artifact
Lie straight if linear
Wrap to prevent loss
3 Levels at sectioning
Possible for spares to be taken at sectioning too
What are the advantages of endoscopic biopsies?
Less invasive than open surgery
Can detect various pathologies
Allows for visualisation of internal organs
Accurate sampling
Quick
What are the disadvantages of endoscopic biopsies?
Can be invasive
Costly
Specialist training
Bleeding
Perforation
Allergic reactions to anaesthetic
Infections
Inflammation
What special considerations do endoscopic biopsies need?
Delicate - crush artefact
May need wrapping
Small so care at trimming and sectioning
Levels at cutting
What is the aim of endoscopic biopsies?
Diagnostic,
Therapeutic for polyps