Examination Of Lumps, Bumps And Ulcers Flashcards
What is a lump
A localized swelling
How do you examine a lump
You check the anatomical plane
You check the physical characteristic of the lump
Diagnosis
What are some examples of the physical characteristics of a lump
Its tenderness
Size
Shape
Consistency
What are some physical signs for lumps
Signs of emptying
Sign of indentation
Expansile impulse
Tumour from muscle
Examples of lumps where you see a sign of emptying
Cavernous hemangioma
Lymphangioma
Meningocele
What is a cyst
A swelling consisting of a collection of fluid in a sac lined by the epithelium and endothelium
What is a true cyst
A cyst lined by epithelium or endothelium lining composed of granulation tissue if infected
What are the contents of a true cyst
Serous
Mucoid
Brown-staining (altered blood) or colourless
What are false cysts
They are usually exudation and degeneration cysts
Examples of false cysts
Pseudocyst of pancreas (collection of fluid in lesser sac)
TB peritonitis (fluid walled off in cystic form by adherent coils of intestine)
Fluid collection in the center of a tumour (cystic degeneration) or due to hemorrhage or colliquative necrosis (eg. apoplectic cyst in the brain)
Types of congenital cysts
Sequestration dermoid
Tubulo-embryonic dermoid
Sites where sequestration dermoids are found
Midline of the body especially the neck
Above the outer canthus (external angular dermoid)
Anterior triangle of the neck (branchial cyst)
Sequestration dermoids are due to
Dermal cells buried along lines of closure of embryonic clefts and sinuses by skin fusion
Tubulo-embryonic cysts are also called
Tubulo-dermoid cysts
Where are tubulo-embryonic cysts found
They are found in the track of an ectodermal tube used in development
Examples of tubulo-embryonic cysts
Thyroglossal cyst - from thyroglossal duct
Post-anal dermoid - from post anal gut
Ependymal cysts - from sequestration of cells of infolding neuroectodern
Acquired cysts
Retention cyst
Distention cyst
Exudation cyst
Cystic tumors
Implantation dermoids
Trauma
Degenerative cysts
Parasitic
How are retention cysts caused
They are caused due to the accumulated secretions of glands following the obstruction of a duct
Examples of glands that could develop retention cysts
Pancreas
Parotid
Breast
Epididymis
Bartholin’s gland
Example of a retention cyst
Sebaceous cyst
How do sebaceous cysts come about
Obstruction of the sebaceous gland followed by the downgrowth and accumulation of desquamated epidermal cells making it an epidermoid cyst also
Examples of distention cysts
Lymphatic cysts
Cystic hygroma
Organs in which distention cysts may develop
Occurs in the thyroid from the dilatation of acini
Ovary from a follicle
When do exudation cysts occur
Occurs when fluid exudes into the anatomical space lined by endothelium