These are the slides I used during my presentation at 6th Child Pulmocon 2020 hosted by Bangladesh Paediatric Pulmonology Forum at Bangladesh College of Physicians and Surgeons Auditorium.
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Congenital Lung Malformation Mimics Pneumothorax: An Experience in Tertiary Care Hospital
1. CONGENITAL LUNG MALFORMATIONS
MIMICS PNEUMOTHORAX:
An Experience In Tertiary Care Hospital
BRIG GEN DR. MAHBUBA SULTANA, ADVISER SPECIALIST,
Combined Military Hospital, Dhaka
3. CASE-01
Name: Nahid
Age: 01 year
Sex: Male
CHIEF COMPLAINTS
▪ Cough and respiratory distress for 1 day.
▪ Fever for 1 day.
▪ H/O recurrent RTI since 3m of age.
4. PHYSICAL FINDINGS
▪ Afebrile
▪ Dyspneic
▪ Tachypneic (RR – 70/min) With SPO2 95%
▪ HR- 120/min
▪ Respiratory System:
RR - 70/min with chest indrawing
Apex beat shifted to Lt side.
Percussion note – hyper resonant on right side.
BS – diminished on rt mid and lower zone.
▪ P/A- mild hepatomegaly
▪ Other system-NAD.
CASE-01
Name: Nahid
Age: 01 year
Sex: Male
5. INVESTIGATIONS
▪ CBC-Hb% 14 gm/dl
▪ TLC-4.4 X 109
▪ N-34%
▪ L-62%
▪ PLT-265X 109 gm/dl
▪ ECHO-Normal cardiac anatomy
▪ Gastric lavage-few epithelial cells and no
GM stain microorganism
CASE-01
Name: Nahid
Age: 01 year
Sex: Male
10. CASE-02
Name: Tahiya
Age: 46 days
Sex: Female
CHIEF COMPLAINTS
▪ Fever with respiratory distress for 7 days.
▪ Past history reveals respiratory tract
infection at 20 days of age.
12. EXAMINATION – Respiratory System
INSPECTION
▪ Right sided chest slightly bulged
▪ Movement restricted on right side
▪ Suprasternal, intercostal, subcostal recession
PALPATION
▪ Trachea centrally placed
▪ Apex beat in left 4th intercoastal space lateral to
mid-clavicular line. Normal in character
13. EXAMINATION – Respiratory System
PERCUSSION
▪ Hyper-resonance on right side of the chest.
AUSCULTATION
▪ Breath sound absent on right side.
▪ On left side vesicular breath sound with no added sound.
14. DIAGNOSIS
PROVISIONAL
for Case - 02
Pneumonia with
Pneumothorax (right)
DIFFERENTIAL
▪ Congenital Lobar Emphysema
▪ Congenital Cystic Adenomatoid
Malformation (CCAM)
17. INVESTIGATIONS - CXR
Mediastinum is
shifted
towards left.
Right hemidiaphragm is not well outlined.
Multiple variable
sized cystic area
are noted in
right hemithorax.
Few lesion
contains
fluid level.
18. C- REACTIVE PROTEIN
1:4, 12 mg/dl
(positive)
BLOOD CULTURE
No growth
TRACHEAL ASPIRATE FOR C/S
No growth
INVESTIGATIONS
TORCH Panel Test
Negative
USG of abdomen
(including KUB)
Normal
ECHO 2D Color
Doppler
PFO, 2 mm, Lt-Rt
shunt
25. STATUS POST THORACOTOMY (SERIAL)
Remaining right lung is aerated with pleural effusion and pneumonitis right.
AFTER SURGERY AFTER REMOVAL OF TUBE LATER – AFTER 3
WEEKS
26. • Extubation was done
after 4 days and the
baby maintain Spo2 with
face mask O2 inhalation.
▪ Chest drain & CVC
removed after 3 days.
33. EXAMINATION – Respiratory System
PERCUSSION
▪ Hyper-resonance on right side
AUSCULTATION
▪ Breath sound diminished on rt side. Vesicular with
crepitations present
▪ Left side normal
39. CONGENITAL LUNG
MALFORMATION
▪ Advances in prenatal and postnatal diagnosis,
perioperative management and postoperative
care have dramatically increase the number of
scientific reports on congenital pulmonary
malformations (CPM).
▪ Nearly all CPM are diagnosed before birth
mostly by antenatal ultrasonography.
▪ After delivery most infants do well and remain
asymptomatic for a long time.
40. • Prenatal diagnosis is sometimes missed
and detection may occur later,
incidentally in the process of diagnostic
workup of unexplained recurrent or
persistent respiratory symptoms and signs.
• Sometimes they may present with
pneumothorax like symptoms.
CONGENITAL LUNG
MALFORMATION
41. CLASSIFICATION OF CPM ACCORDING TO CLINICAL APPEARANCE
NEW NOMENCLATURE OLD TERMS SUPERCEDED
▪Congenital thoracic
malformations (CTM)
▪Cystic adenomatoid
malformations
▪Sequestration(
intrapulmonary and
extrapulmonary)
▪Bronchogenic cyst
▪Foregut cyst.
42. CLASSIFICATION OF CPM ACCORDING TO CLINICAL APPEARANCE
NEW NOMENCLATURE OLD TERMS SUPERCEDED
▪Congenital large
hyperlucent lobe
▪Congenital small lung
▪Absent bronchus
▪Congenital lobar
emphysema
▪Polyalveolar lobe
▪Pulmonary hypoplasia
▪Bronchial atresia
43.
44. WHAT IS CCAM?
▪ Rare pulmonary developmental hamarto-matous
abnormality.
▪ Comprised of pulmonary tissue with abnormal
bronchial proliferation.
▪ The fundamental pathologic feature of the lesion is
adenomatoid proliferation of bronchioles that form
cysts at the expense of normal alveoli.
45. CONGENITAL LOBAR EMPHYSEMA (CLE)
▪ Congenital lobar emphysema (CLE) characterized by unilobar
alveolar distension secondary to bronchomalacia or absent
cartilage is a rare condition.
▪ This disease presents as respiratory distress due to the ventilation
perfusion mismatch as a result of the hyper inflated lung causing
compression atelectasis on the ipsilateral or the contralateral
side with mediastinal shift.
▪ The incidence of left upper lobe involvement is 43%, right middle
lobe 32%, right upper lobe 20%, and bilateral involvement 20%.
46. CONGENITAL LUNG CYST
Bronchogenic cysts are congenital malformations
of the bronchial tree (a type of bronchopulmonary
foregut malformation).
They can present as a mediastinal mass that may
enlarge and cause local compression. It is also
considered the commonest of foregut
duplication cysts.
48. RADIOLOGICAL DIFFERENCES OF DIFFERENT CPM
No. Congenital lobar
emphysema
CCAM Tension Pneumothorax
1 Bronchovascular marking
present
Presence of septation in the
cystic lucent lesion with or
without air fluid level;
Vascular marking present
Absent
2 Compression of adjacent
lobes pushes the
diaphragm in cephalad or
caudal direction
Lack of lucency in the
uninvolved apical region
Lung collapses towards the
hilum
3 Management – lobectomy Excision of cyst Chest tube drainage
4 CT Scan – evaluates
anatomy of
emphysematous and its size
and relation
Can delineate exact size
and number of cystic
lesions
N/A
51. Bronchogenic cysts can be
multilocular or unilocular.
Histologically, they are thin-
walled cysts lined with
cuboidal epithelium or
secretory ciliated epithelium.
The cyst can contain mucus
glands, smooth muscle, elastic
tissue and cartilage
52. ▪ Composed of single or multiple large
cysts (more than 2 cm. in diameter),
frequently producing mediastinal
herniation.
▪ The cysts are lined by ciliated
pseudostratified columnar epithelium.
▪ The walls of the cysts contain prominent
smooth muscle and elastic tissue.
▪ Mucus producing cells are present in
approximately one-third of the cases,
and cartilage in the wall is rarely seen.
▪ Relatively normal alveoli may be seen
between the cysts.
HISTOLOGY CCAM
53. ▪ Background parenchyma will be
a good reference
▪ Fragmented alveolar walls
• If the acinar arrangement is
well remained, it is representing
pores of Kohn
• If not, it is representing acinar
destruction
▪ Mild fibrotic change can be seen
▪ Any degrees of inflammation can
accompany
HISTOLOGY CLE
56. CONCLUSION
▪ All pneumothorax in young children are not always simple
pneumothorax.
▪ It should be evaluated thoroughly to rule out congenital
pulmonary malformation.
▪ Clinician must have a high index of suspicion for congenital
pulmonary malformation in the context of respiratory
distress in infancy and early childhood.
▪ Multidisciplinary approach with skilled radiological and
histopathological support can detect congenital lung
disease early, establish definitive treatment and thus
prevent complications.