Dermoid cyst -clinical types, clinical feature , differential diagnosis ,treatment

-

                          DERMOID CYST

  • Dermoid cyst is lined by squamous epithelium containing  desquamated cells
  • Origin :Face is developed from five processes two maxillary, two mandibular and 1 frontonasal process.
  • Dermoid cyst occurs in the line of embryonic fusion of these processes.
STUDENTS CORNER:
lets see how to approach this question better here you go start with a small introduction to the topic, mention few common sites where dermoid cyst can usually occur in order to remember that here is pneumonic "SERF" where S- Sublingual dermoid, E-External angular dermoid, R-Root of nose, F-Forehead,  followed by listing out different clinical type of dermoid cyst, clinical features ,differential diagnosis and end it of with treatment options .

Common sites: 

  • Forehead
  • External angular dermoid
  • Root of nose
  • Sublingual dermoid 








CLINIAL TYPES OF DERMOID CYST:

1)CONGENITAL /SEQUESTRATIN DERMOID:

  • They occur along the line of embryonic fusion ,due to dermal cells being buried in deeper plane
  • The cells which are sequestrated in the subcutaneous plane proliferate and liquify to form a cyst








2)IMPLANTATION DERMOID:

  • Common in women,tailor,agriculturist who sustain repeated minor sharp injuries
  • In sharp injury ,few epidermal cells gets implanted in subcutaneous plane resulting in implantation dermoid cyst 







3)TERATOMATOUS DERMOID CYST:

  • Teratoma is a tumor arising from totipotential cells
  • Contain ectodermal ,endodermal, mesodermal elements -hair, teeth ,cartilage and bone
  • Common sites: ovary, testis ,retroperitoneum

4)TUBULO-EMBRYONIC DERMOID CYST:

  • Arise from ectodermal tube





CLINICAL FEATURE:

  • Resorption and indentation of the bone beneath
  • Painless, slow growing swelling
  • Soft, cystic and fluctuant swelling
  • Underlying bone defect give clue to diagnosis

DIFFERENTIAL DIAGNOSIS:

  • Sebaceous cyst
  • lipoma
  • Bursa

TREATMENT:

  • Excision of cyst under general anesthesia
  • Neurosurgical approach is required.





CONCLUSION:
Vanakam, my dear stencildent family ,hope you all are doing good here is a post on most frequently asked 5 mark question in general medicine DERMOID CYST ,if you would like to know about another important 5 mark question then do click on this link sebaceous-cyst to learn better .
    THANK YOU 


CONTACT DETAILS:
Email:stencildent@gmail.com
instagram:stencildent
AUTHOR :Dr.Akarna.R

Comments

Post a Comment

Popular posts from this blog

Sterilization technique in microbiology

-
Image
HELLO! DOCTOR VANAKAM, I hope you all are doing good today we will be discussing sterilization various methods of sterilization, about dry heat sterilization and moist heat sterilization along with different methods employed, and what are the materials to be placed in this method in detail about autoclave its principle, working and of course uses. As I have had already informed you all through my previous post on the contribution of Louis Pasteur and Koch postulates if we haven't checked it out yet do check it out using this link   https://www.stencildent.com/2020/07/contributions-of-louis-pasteur-and-koch.html  wherein I would explain the importance for the need of the HOUR and always to sterilize things to and from the patients and also get geared up for the next post on SHOCK wherein I would cover the definition, types, classification along with etiology, pathogenesis, flow chart, the complication of septic shock in detail so now without any further ado lets get started. STERILI
Read more

STAGES AND STEPS IN TOOTH PREPARATION

-
Image
                      STAGES AND STEPS IN                                        TOOTH  PREPARATION                 TOOTH PREPARATION INVOLVES 2 STAGES  1) INITIAL TOOTH PREPARATION:    OUTLINE FORM AND INITIAL DEPTH PRIMARY RESISTANCE FORM  PRIMARY RETENTION FORM CONVENIENCE FORM 2) FINAL TOOTH PREPARATION  REMOVAL OF REMAINING CARIES PULP PROTECTION SECONDARY RESISTANCE AND RETENTION FORM FINISHING OF EXTERNAL WALL FINAL PROCEDURE OF CLEANING AND INSPECTING  Each stage and step is explained in detail please refer to above notes . note:please do not  download and share all rights are reserved to stencildent.
Read more

Hypersensitivity microbiology notes

-
Image
                          HYPERSENSITIVITY   hello, doctor vanakam, I hope you all are doing good, as intimated through the last post on anaerobic culture method  https://www.stencildent.com/2020/08/anaerobic-culture-methods-microbiology.html  if u haven't checked it out do read using this link without any further ado lets get started. CONTENTS: 1)Definition 2)Classification 3)type 1 hypersensitivity reaction a)1st exposure b)2nd exposure c)mediators of reaction d)late-phase reaction 4)type 4 hypersensitivity 5)treatment  1)DEFINITION: It refers to a condition in which immune response results in excessive reaction leading to tissue damage, disease, or even death in a sensitised host. 2) CLASSIFICATION: Coomb and gel classification in 1963 into type 1 to 4  Type 1,    type 2, type 3       : They depend on the interaction of antigen with humoral antibodies They are the immediate-type reaction  type 4 : They are mediated by t lymphocyte Delayed-type of hypersensitive reaction 3)TYPE 1
Read more