Download MBBS (Bachelor of Medicine and Bachelor of Surgery) Clinical Signs of Mass Lesion Cavity and Lung Abscess_Split PowerPoint PPT presentation
Pulmonary, pleural or mediastinal lesions on
the chest radiograph as an opacity greater
than 3 cm in diameter.
Symptoms and Signs
Local - Cough, chest pain, dyspnea, hemoptysis
Bronchial obstruction - bronchopneumonia, lung abcess,
bronchiectasis
Due to metastasis - SVC syndrome, painful bony lesion ???????
Paraneoplastic syndrome (Small cell ca) -
Ectopic hormone production
Others - neuromuscular, skeletall
Cutaneous
Hematological
BRONCHOGENIC CARCINOMA
Age - higher, sex - males, smokers
Clubbing
Cervical lymphadenopathy
Emaciation (weight loss)
Usual y no mediastinal shifting unless complicated
by pleural effusion
Localized crepitation over mass
Cavity lesion
Gasfil edspacewithinthelungthatmayormaynotcontainfluidlevel
andissurroundedbyawal ofvariesthickness
Signs
Post tussive crepitation
Post tussive suction (hight pitched sucking sound audible during phases of long inspiration fol owing
a bout of cough) - Hal mark sign of a thin wal ed superficial, compressible cavity connected
with patent bronchus.
Cracked pot sound by percussion over empty communicating cavity
Radiology
Wall thickness
Characteristics of inner
contour
Internal content
Number and locations
Differential Diagnosis
Neoplasm
Infection - bacterial, fungal, parasitic
Pulmonary infarct
Septic emboli
Auto immune (wegner's granulomatosis, rheumatoid arthritis)
Traumatic
Congenital
Lung abscess
Localized area of suppurative necrosis within pulmonary parenchyma resulting in formation of one or more
lung cavities
Causative organisms (Staphylococcus n Streptococcus) is introduced to the lung by
Aspiration
Complications of necrotizing bacterial infection
Distal to bronchial obstruction
Septic embolism
Hematologenic spread
It is commonly seen in the right lung (upper part of lower lobe and lower part of upper lobe)
Symptoms and signs
Cough with copious amount of foul smel ing purulent sputum
Clubbing
Fever, malaise
Loss of weight
Radiology
Irregularly shaped cavity with
an air-fluid level
This post was last modified on 12 August 2021