Question juridique clé
Admissibility of the appeal against the cantonal order after withdrawal of the lower-court complaint
Solution extraite
The appeal was inadmissible insofar as it attacked the original first-instance involuntary placement decision rather than the only appealable cantonal order of 28 March 2011.
Motifs extraits
Federal review lies only against final cantonal decisions; the appellant challenged the underlying placement and diagnosis, not the appealed withdrawal-based dismissal order.