The phrase "as a possible case" is correct and usable in written English.
It can be used when discussing a scenario or example that may be relevant or applicable in a particular context.
Example: "We should consider the situation as a possible case for further investigation into the issue."
Alternatives: "as a potential example" or "as a possible scenario".
The police are investigating it as a possible case of insurance fraud.
Spokesman Rodrigo Borges Petrilli said the crimes were being investigated as a possible case of gang warfare.
Two boys, ages 6 and 9, were killed last night in a car crash in Newark, and the police were investigating the incident as a possible case of assault, murder and carjacking.
The police said they were investigating the deaths as a possible case of murder and suicide, but emphasized that they had not definitively linked the man to the woman or to her death.
The widow of a Westchester County man whose death this month is being investigated as a possible case of Legionnaires' disease has asked the Manhattan district attorney to consider criminal charges against the hospital where he might have become infected.
Very few patients who expressed no concern about recurrence, at 3 months, were found to report anxiety or depression sufficient to be recognized as a possible case (3 and 0% respectively).
But all of Sessions's possible defenses, as well as the details of a possible case against him, rest on facts facts that are not yet known.
Following discussion of each case, individual panel member independently recorded their clinical opinion as to whether there was sufficient clinical evidence to classify the patient as a definite case, a possible case, or definitely not a case of MWF-HP.
Florida healthcare practitioners should consider CA-MRSA as a possible cause of cases of primary skin infections including necrotizing fasciitis and as a cause of necrotizing pneumonia, especially among otherwise healthy individuals.
Calving difficulty was indicated as a possible cause in 1 case (from a SLB heifer; No. 1087) due to severe trauma.
Scabies should be considered as a possible cause for any cases of severe itching lasting over weeks or months.
