c195acfe_f_Hair_Loss__Alopecia__in_Cats__Diagnosis
[Condition] Granulomas [Description] May be due to infections; the body's reaction to foreign material such as plant material (e.g., foxtail) and suture material; other constant irritation; or unknown causes [Symptoms] Solid, firm nodules of varying sizes; those due to foreign bodies often have draining tracts; may develop hair loss, ulcers, and secondary infections [Treatment] Surgical removal of the foreign body (in the case of plant material, tracts may be extensive and require major surgery); antibiotics if infected; treat any other underlying cause [Diagnosis] 
History, clinical signs, biopsy, surgical exploratory
Causes of Hair Loss (Alopecia) in Cats
Diagnosis