Acute liver injury (ALI) is defined as an acute derangement in liver function tests associated with liver-related coagulopathy, in the absence of underlying chronic liver disease.

A subset progress to acute liver failure ,Acute liver failure represent a more severe liver injury results in hepatic encephalopathy

Acute liver injury is associated with a spectrum of haemostatic changes, including thrombocytopenia and reduced platelet function, reduced plasma levels of many coagulation factors such as factor (F)VII and increased levels of FVIII .

Pneumonia is an acute inflammation of the lower respiratory tract. Lower respiratory tract infection is a major cause of mortality worldwide .Pneumonia is most common at the extremes of life.

In adults, pneumonia can be broadly classified, on the basis of chest radiographic appearance, into lobar pneumonia, bronchopneumonia and pneumonia producing an interstitial pattern.

There is lack of data regarding outcome and hospital stay in patients with pneumonia who develop acute liver injury.

Inclusion Criteria:

1. Patients with pneumonia that developed Acute Liver Injury
2. Covid 19 pneumonia
3. Patients With acute liver injury only.

Exclusion Criteria:

1. Cancer
2. Immunocompromised patients i.e HIV patients and patients who take immunosuppressive medications.
3. Patients who younger than 18 yrs old
4. pregnancy

patients with pneumonia in hospital ward or critical care