Platypilea is seen in
platypnea ohodeoxia is typically an ove symptom when the patient's posture changes from the supine to the upright position. .Especially when a significant pleural ef- fusion (hydrothorax) is present, the intrathoracic effusion spreads diffusely over the posterior space of the thorax in the supine position. Ref Davidson 23rd edition pg 619
Diaphragmatic palsy
Pleural effusion
pulmonary embolism
Lt atrial tumor
Respiratory system