Red degeneration of fibroid

Red degeneration of fibroid

Q. 1

A pregnant woman with fibroid uterus develops acute pain in abdomen with low grade fever and mild leucocytosis at 28 week. The most likely diagnosis is :

 A

Preterm labour

 B

Torsion of fibroid

 C

Red degeneration of fibroid

 D

Infection in fibroid

Q. 1

A pregnant woman with fibroid uterus develops acute pain in abdomen with low grade fever and mild leucocytosis at 28 week. The most likely diagnosis is :

 A

Preterm labour

 B

Torsion of fibroid

 C

Red degeneration of fibroid

 D

Infection in fibroid

Ans. C

Explanation:

Ans. is c I.e. Red degeneration of fibroid

Friends, the answer is quite obvious but let’s see how other options can be ruled out. Option “a-Preterm labour

Points in favour

  • Patient is pregnant
  • Pain in abdomen at 28 weeks (Preterm labour is where labour starts before the 37′” completed weeks. The lower limit is 28 wks in developing countries and 20 wks in developed countries

 

 

 

 

 

 

 

Points against

  • Preterm labour is diagnosed

–                When there are regular uterine contractions. (Not acute pain) With or without pain at least in every 10 minutes.

Dilatation of cervix is > 2 cms

—              Effacement of cervix = 80%

–                Length of cervix as measured by TVS < 2.5 cms & funneling of the internal OS.

Pelvic pressure backache, vaginal discharge or bleeding. None of the above criteria are being fulfilled.

  • Presence of leucocytosis & fever can also go against it as even if there is intraamniotic infection causing preterm labour – features like : fever, leukocytosis, uterine tenderness and fetal tachycardia are absent. Rather if these features are present it means a final stage of uterine infection has reached. And here our patient is having fever, Leukocytosis without regular uterine contractions (off and on pair) but with acute pain in abdomen so it can be ruled out .

Points in favour                                                                          Points against

Patient has fibroid (Though no mention has                • Torsion is not associated with fever

been made whether it is pedunculated                          and leucocytosis.

or not, Remember torsion is seen in

subserous pedunculated Myomas)°

  • Patient is complaining of acute

pain in abdomen.

Option “d”        Infection of fibroid

Points in favour                                          Points against

  • Presence of fibroid                   • Acute pain in abdomen

(Remember : Infection is common        (Infection of fibroid will not cause acute pain in abdomen).

in submucous fibroids)°                      • Infection of fibroid occurs following abortion or labour

  • Fever                                       (Here patient is pregnant but there is no history of

Option “c”    Red degeneration of fibroid

Red degeneration of fibroid : also called as Cameous degeneration.

  • It is seen mostly during pregnancy mid pregnancy° (But can occur at other times as well and in non

pregnant females also).°

  • It is an aseptic condition.°
  • The myoma suddenly becomes acutely painful°, enlarged° and tender°.
  • Patient presents with :                  Acute abdominal pain° Vomitting°

Malaise°

–                              Slight fever°

Lab investigations :                          – Moderate leucocytosis°
Raised esr°

Pathological changes in the tumour :

  • Fibroid becomes soft. necrotic or homogenous especially in its centre.
  • It is stained Salmon pink°, or red (due to Diffusion of blood pigments from the thrombosed vessels).
  • It has fishy odour° (due to secondary infection with coliform organisms)
  • Histologically : There is evidence of thrombosis in some vessels.°
  • Pathogenesis : There is subacute necrosis of the myoma caused by an interference in blood supply (aseptic infarction).°

Management :

  • Conservative management°
  • Patient is advised rest°
  • Analgesics are given to relieve the pain.°
  • The acute symptoms subside in 3-10 days° and pregnancy proceeds uneventfully.

Diagnosis is by ultrasound.

D/D

  • Appendicitis°, Twisted ovarian cyst°, Pyelitis° and Accidental haemorrhage°.
  • So amongst above options – Red degeneration is the correct answer.

Q. 2

Red degeneration in uterine fibroid is most common in :

 A

Second trimester

 B

Third trimester

 C

Puerperium

 D

First trimester

Q. 2

Red degeneration in uterine fibroid is most common in :

 A

Second trimester

 B

Third trimester

 C

Puerperium

 D

First trimester

Ans. A

Explanation:

Ans. is a i.e. Second trimester 

Friends, answer to this question was quite obvious as each one of us have mugged it up; but finding an appropriate reference was a difficult task.

Read for yourself whatDutta Obs. 6/e, p 309 has to say‑

“Red Degeneration; It predominantly occurs in a large fibroid during the second half of pregnancy or puerperium.”

From the above statement answer could be second trimester, third trimester or puerperium.

“Red degeneration; manifests typically about midpregnancy when the leiomyoma suddenly become acutely painful, enlarged and tender.”

This clears the doubts and confirms our answer i.e Red degeneration is most common during second trimester (midpregnancy).

Friends you should also keep in mind the following important points regarding – Fibroids and pregnancy.

Effects of Fibroid on pregnancy :

  • Infertility

– Leiomyomas are a sole cause of infertility in less than 30/0 of cases.°

–  It causes infertility by :

  1. Hindering the ascent of the spermatozoa by distorting the uterus and tubes.
  2. By disturbances in ovulation and
  3. By interfering with implantation of the fertilized ovum.

–  Pregnancy rate following myomectomy = 40%°

  • Abortion°, Placental abruption° and Premature labour°.

Occurs when fibroid interferes with enlargement of uterus, initiates abnormal uterine contractions or prevents efficient placentation,

  • Ma!position° and Malpresentation° of Fetus : occur as fibroid can prevent engagement of head.
  • Obstructed labour : It can be caused by cervical° and broad ligament tumours° which are fixed in the pelvis and by pedunculated subserous leiomyomas which become trapped in the pouch of Douglas.
  • During labour

– If fibroid is situated above the presenting part – uneventful vaginal delivery.

– If fibroid is situated below the presenting part spontaneous vaginal delivery may occur; otherwise caesarean section is done. Thus chances of cesarean section are increased.°

  • Post Partum Hemorrhage° /Delayed Involution° can occur if placenta is implanted° over the leiomyoma.

Uterine inertia – Inertia due to fibroid is not supported


Q. 3

Treatment of Red degeneration of fibroid during pregnancy :

 A

Analgesics

 B

Laparotomy

 C

Termination of pregnancy

 D

Removal at cesarean section

Q. 3

Treatment of Red degeneration of fibroid during pregnancy :

 A

Analgesics

 B

Laparotomy

 C

Termination of pregnancy

 D

Removal at cesarean section

Ans. A

Explanation:

Ans. is a i.e. Analgesics

Management of Red degeneration of fibroid.

  • Patient is managed conservatively.°
  • Patient is put to bed rest and given analgesics° (to relieve the pain), sedatives° and if required antibiotics.°
  • If because of mistaken diagnosis iaparotomy is done, abdomen is closed without doing anything.
  • Myomectomy should never be contemplated during caesarean section as vascularity of fibroid is increased
    during pregnancy (due to increased estrogen) leading to increased blood loss during cesarean section.°

For more information about Red degeneration, refer answer 8


Q. 4

All of the following are the indications for myo­mectomy in a case of fibroid uterus except :

 A

Associated infertility

 B

Recurrent pregnancy loss

 C

Pressure symptoms

 D

Red degeneration

Q. 4

All of the following are the indications for myo­mectomy in a case of fibroid uterus except :

 A

Associated infertility

 B

Recurrent pregnancy loss

 C

Pressure symptoms

 D

Red degeneration

Ans. D

Explanation:

Ans. is d i.e. Red degeneration       

From the given options the answer is quite obvious as red degeneration of fibroid is managed conservatively not by any surgery.

But here I would like to discuss in detail the surgical management of fibroid and its indications, especially myomectomy (which is being done more frequently these days).

Indications of surgical management of fibroid :

  • Fibroid causing symptoms : – Menorrhagia°

–  Chronic / Acute, Pelvic pain°

–  Pressure symptoms like urinary retention.°

  • Fibroid like cornual fibroid causing infertility.°
  • Sub mucous fibroid causing infertility (Other causes of infertility should be ruled out before surgery).°

Surgical options can be :

  •  Myomectomy
  • Hysterectomy

Indication of myomectomy : Myomectomy is specifically indicated in an infertile woman or woman desirous of bearing child and wishing to retain the uterus. Indications being the same as for surgery.°

Some specific indications for Hysterectomy :

  • In patients > 40 years of age.°
  • Multiparous women.°
  • If fibroid is associated with malignancy.°
  • During myomectomy if their is uncontrolled hemorrhage or other surgical difficulty.°
  • If the size of uterus is < 12 weeks vaginal hysterectomy can be done.°
  • Myomectomy is the enucleation of myomata from the uterus leaving behind a potentially functioning organ capable of future reproduction.°
  • Prerequisites : Anemia should be corrected.°

–  All other causes of infertility should be excluded.°

– Male factor infertility should be ruled out.°

– Diagnostic D and C should be performed in case of irregular cycles, to detect any polyp and to rule out endometrial cancer.°

– Hysteroscopy or HSG : To detect a fibroid encroaching the uterine cavity or a polyp or tubal block.°

  • Myomectomy is specifically indicated in an infertile woman or woman desirous of bearing child and wishing to retain the uterus.°

Time of myomectomy :

  • It should be performed in preovulatory menstrual phase to reduce blood loss during surgery.°
  • It should not be performed during pregnancy and at the time of cesarean section.°

Contraindications :

  • Big broad ligament fibroid : (as many large vessels are present which can cause uncontrollable bleeding and thus the need to abandon myomectomy and do hysterectomy.°
  • Multiple tiny fibroids scattered through the uterine wall.°

Instrument used to decrease blood loss during myomectomy : bonney’s myomectomy clamp.°

  • Myomectomy operation should always be followed by shortening of round ligament to prevent retroversion.°
  • Bonney’s hood technique : is done in interstitial fibroid on the fundal posterior wall.°

Results (Important) :

  • Pregnancy rate following myomectomy : 40%°
  • Abortion rates if woman conceive : 25%°

Myomectomy :

  • Low grade postoperative pyrexia is a rule and should not be treated by antibiotics (pyrexia is d/t slight extravasation of blood in uterine wall or peritoneal cavity and settles spontaneously in 7-14 days).
  • Recurrence rate : 5-10%°
  • Persisting menorrhagia 1-5%°
  • Reason for persisting menorrhagia is either myoma was not responsible for the complain or an intrauterine polyp or fibroid was overlooked during surgery.
  • 20 – 25% women subjected to myomectomy : ultimately come for hysterectomy.

                                                                                                                               Routes of myomectomy

Abdominal         Vaginal myomectomy Myomectomy

Done in case of submucosal pedunculated fibroid

Hysteroscopic myo­mectomy

Submucosal fibroid° which cannot be removed by simple vaginal route can be removed with the help of hysteroscope

Laparoscopic Myomectomy

Indicated for

pedunculated

Subserosal fibroids (<10cms in size) Intramural fibroids can also be removed by laparoscope but it is very time consuming

Myolysis or

myoma coagulation using laser

In this procedure lasers are used to drill holes into the substance of intramural myoma


Q. 5

Red degeneration of fibroid is due to :

 A

Thrombosis of the veins

 B

Infection

 C

Gangrene

 D

Rupture of capsules

Q. 5

Red degeneration of fibroid is due to :

 A

Thrombosis of the veins

 B

Infection

 C

Gangrene

 D

Rupture of capsules

Ans. A

Explanation:

Thrombosis of the veins


Q. 6

Red degeneration of uterine fibroid :

 A

Is aseptic infarcation

 B

Only occurs in pregnancy

 C

Causes leucopenia with lymphocytosis

 D

Is due to emboli occluding the major blood ves­sels supplying the myoma

Q. 6

Red degeneration of uterine fibroid :

 A

Is aseptic infarcation

 B

Only occurs in pregnancy

 C

Causes leucopenia with lymphocytosis

 D

Is due to emboli occluding the major blood ves­sels supplying the myoma

Ans. A

Explanation:

Is aseptic infarcation


Q. 7

Red degeneration of fibroid is associated with which of the following condition?

 A

Pregnancy

 B

Aseptic infection

 C

Thrombosis

 D

Leukocytosis

Q. 7

Red degeneration of fibroid is associated with which of the following condition?

 A

Pregnancy

 B

Aseptic infection

 C

Thrombosis

 D

Leukocytosis

Ans. A

Explanation:

Red degeneration of fibroid is associated with pregnancy.
It is caused by obstruction of the venous flow as the fibroid enlarges during pregnancy.
The cut surface shows a reddish purple colour. Patients presents with acute pain, at the site of fibroid in the pregnant uterus. They can also develop mild fever and severe vomiting.
 
Types of degeneration in fibroid:
  • Hyaline change: It is present in two third of the fibroids and is very rarely symptomatic.
  • Cystic change
  • Oedema
  • Red degeneration
  • Calcification
  • Fatty change
Ref: Essential of Obstetrics  By Arulkumaran page 200, The Yearbook of the Royal College of Obstetricians and Gynaecologists, 1995  edited by John Studd page 166.

Q. 8

A 40 year old woman who presented with severe abdominal pain, fever and nausea was taken up for explorative laparotomy. It revealed a purple red tumour on the uterus with fishy odour. On careful examination some of the large veins on the tumour were thrombosed. What is the possible diagnosis?

 A

A sarcomatous change in a pre existing myoma

 B

Fatty degeneration of a myoma

 C

Red degeneration of a myoma

 D

Hyaline degeneration of a myoma

Q. 8

A 40 year old woman who presented with severe abdominal pain, fever and nausea was taken up for explorative laparotomy. It revealed a purple red tumour on the uterus with fishy odour. On careful examination some of the large veins on the tumour were thrombosed. What is the possible diagnosis?

 A

A sarcomatous change in a pre existing myoma

 B

Fatty degeneration of a myoma

 C

Red degeneration of a myoma

 D

Hyaline degeneration of a myoma

Ans. C

Explanation:

Red degeneration is a complication of uterine myoma, though it mostly occurs in pregnancy it is not a rare cause of painful myomas in woman over the age of 40. Sarcomatous change in myoma is extremely rare and is yellow – gray in colour with haemorrhages to the naked eye.

Ref: Shaw’s Textbook of Gynaecology, 13th Edition, Pages 340-41.

Q. 9

A pregnant woman presents with red degeneration of fibroid, Management is:

 A

Myomectomy

 B

Conservative Rx

 C

Hysterectomy

 D

Termination of pregnancy

Q. 9

A pregnant woman presents with red degeneration of fibroid, Management is:

 A

Myomectomy

 B

Conservative Rx

 C

Hysterectomy

 D

Termination of pregnancy

Ans. B

Explanation:

In a pregnant female with red degeneration of fibroid, management is essentially conservative treatment with analgesia and rest.

Ref: Textbook of Obstetrics By D.C.Dutta, 5th Edition, Page 1327 ; Essentials of Obstetrics By Arulkumaran, 2004, Page 200

Q. 10

Which of the following is least seen in uterine fibroid

 A

Hyaline degeneration

 B

Sarcomatous change

 C

Red degeneration

 D

Fatty degeneration

Q. 10

Which of the following is least seen in uterine fibroid

 A

Hyaline degeneration

 B

Sarcomatous change

 C

Red degeneration

 D

Fatty degeneration

Ans. B

Explanation:

Ans. b. Sarcomatous change .

  • The risk of sarcoma developing in a fibroid uterus is approximately 0.5% (Least common secondary change).

Secondary Changes in Fibroid

  • Hyaline degeneration:
  • MC change, more common in central portionQ
  • Cystic degeneration (after menopause)
  • Fatty degeneration (after menopause)
  • Calcareous degeneration (after menopause)
  • Atrophy° (after menopause)
  • Red degeneration° (2′ half of pregnancy)
  • Sarcomatous change:
  • Least common changeQ
  • Incidence 0.5% of all fibroids
  • More common in intramural and submucous fibroids


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