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Simple PneumothoraxAka: Spontaneous Pneumothorax, Pneumothorax

Also See
1. Tension Pneumothorax
2. Open Pneumothorax
Epidemiology
1. Typical patient is a tall, thin male
2. Age under 40 years (80%)
3. Presentation within 24 hours (70%)
Risk Factors
1. Chronic Obstructive Pulmonary Disease (COPD)
2. Asthma
3. Bronchitis
4. Menstruation
Symptoms
1. Chest Pain
  1. Sudden sharp pain
  2. Radiates to back or shoulders
2. Variable cardiopulmonary symptoms including Dyspnea
Signs
1. Examination may be unremarkable
2. Keep high index of suspicion
  1. COPD patients
  2. Tall, thin males
3. Unilateral absent breath sounds
4. Hyperresonant to percussion
5. Coin Test
Radiology: Chest XRay Expiratory Film
1. Enhances pneumothorax (compresses collapsed lung)
2. Does not enlarge pneumothorax
Management
1. Observation for small pneumothorax
  1. Volume: <20%
  2. Apical depth: <1 cm
2. Needle aspiration
  1. Successful in 70% of cases
3. Chest Tube Indications
  1. Large pneumothorax
  2. Decompensating patient status
  3. Positive Pressure Ventilations used

Pneumothorax (C0032326)
Definition (MSH)	An accumulation of air or gas in the pleural space, which may occur spontaneously or as a result of trauma or a pathological process, or be introduced deliberately ( = PNEUMOTHORAX, ARTIFICIAL). (Dorland, 27th ed)
Definition (CSP)	accumulation of air or gas in the pleural space, which may occur spontaneously or as a result of trauma or a pathological process.
Definition (NCI)	Pneumothorax; abnormal presence of air in the pleural cavity resulting in the collapse of the lung.
Concepts	Disease or Syndrome (T047)
ICD9	512, 512.8
MSH	D011030
English	Pneumothorax, pneumothorax disorder
Spanish	neumotorax
Parent Concepts	Lung diseases (C0024115), Respiration Disorders (C0035204), Pleura (C0032225), Pleural Diseases (C0032226), Other respiratory system diseases NOS (C0029582), Non-Neoplastic Pleural Disorder (C1335034), Pneumothorax (C0032326), Disorder of pleura and pleural cavity (C1536731), Duplicate concept (C1274013)
Sources	AOD, COSTAR, CSP, CST, DXP, ICD9CM, LCH, MSH, MTH, MTHICD9, NCI, NDFRT, OMIM, QMR, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)