A 52-year-old man was minutes from his own front door when the orange cones went up. Every street he tried was closed. When a truck pulled up and workers began sealing off the last open route, he ran a red light, accelerated through the intersection, and started shouting at the man laying the cones.
That episode is now the first medically documented case of what its author calls "Montreal syndrome," described in a case report in the World Journal of Psychiatry.
Ten Minutes of Detours Ended with a Red Light and a Shouting Match
He was driving home late one evening after a show outside the city. Leaving the highway, he was pushed onto a side street that carried him away from his address. Then came another closure, and another. He circled his own neighborhood for about ten minutes before making a long detour along Notre-Dame, a street that runs roughly 34 kilometers across Montreal.
Stopped at a red light, he watched a truck loaded with cones arrive at the intersection ahead of him. Workers climbed out and began arranging them across the one street left that would take him home.
He ran the light, drove into the closing gap, opened his door, and swore at one of the workers. The insults went both ways. He drove on. The worker finished sealing the street behind him.
At home he sat in front of the television for about ten minutes before he calmed down. In bed, he replayed it: the red light, the acceleration, the cone he nearly hit, the shouting. He slept badly and spent the next day anxious, tired, and sad.
Doctors Ruled Out a Brain Problem Before Landing on Adjustment Disorder
By coincidence, he already had an appointment with his primary care physician about a small lump on the back of his scalp. Ultrasound and MRI identified it as a benign lipoma, a harmless fatty growth sitting in the layer under the skin, with no bone or brain involvement. His neurological examination was normal.
That sequence matters more than it looks. Sudden, out-of-character aggression can signal something organic, and the imaging effectively closed that door.
The diagnosis was adjustment disorder with mixed emotional features, a stress reaction tied to a specific and repeating trigger. The report deliberately rules out intermittent explosive disorder, the diagnosis reserved for recurrent, disproportionate outbursts. This man had no prior episodes and came nowhere near the frequency criteria, which call for verbal outbursts twice a week over three months, or three physical outbursts in a year.
His history was otherwise ordinary: hypertension controlled for six years, an anticoagulant for atrial fibrillation last active more than a decade earlier, no psychiatric history and no criminal record.
The Author Coined Conophobia Himself and Says One Patient Proves Nothing
Emmanuel Stip, emeritus professor of psychiatry at the University of Montreal, introduced the term conophobia in a paper in Santé mentale au Québec. This case report is the first time a documented patient has been attached to the idea.
He is unusually direct about the limits. Establishing a syndrome requires a reproducible cluster of symptoms across multiple people, and one case does not clear that bar. The paper states plainly that the evidence is insufficient to classify conophobia as a distinct psychiatric disorder, and that the symptoms may be better understood as situational rage, or as difficulty adjusting to an environmental stressor.
The limitations section goes further. Frustration with roadwork is not unique to Montreal, the author writes, because aging infrastructure and constant urban rebuilding are global. What sets the city apart is cultural. The specific object at issue, a bright orange polyethylene channelizing drum designated T-RV-7, has turned into a mascot, a souvenir and a comic strip character. The journal's external reviewers graded the paper's scientific quality and novelty at B and C.
The paper also places the idea alongside other syndromes named after cities, including Stockholm syndrome and Stendhal syndrome, the disorientation some visitors report while viewing art in Florence.
Painting Cones Instead of Taking Pills
The treatment is the strangest part of the file. The man received no psychiatric medication. He was offered psychotherapy and chose art therapy, then spent weeks making cones in paint, in photographs and in writing. He took up yoga. His symptoms faded over several weeks, and his sleep and work returned to normal.
Before that, he had been avoiding certain routes and cycling through anger, anxiety and sadness whenever he passed cones on the way to work.
For American readers stuck in their own construction seasons, the syndrome label is the least useful part of this. The most common trigger for road rage is blocked progress, usually caused by other drivers. Here the obstacle was an object rather than a person. Psychologists have also built and tested interventions for reducing driving anger, and the report notes that talk therapy has outperformed medication for anger problems in randomized trials, although that evidence comes from research on intermittent explosive disorder rather than anything cone-specific.
Anyone whose anger behind the wheel is producing dangerous driving should raise it with a clinician rather than wait for the barrels to come down.
Key Questions Answered
What actually happened to the patient?
Blocked repeatedly by cones on his way home, he ran a red light and verbally abused a road worker, then had several days of poor sleep, anxiety, and low mood.
Is Montreal syndrome a recognized diagnosis?
No. It appears in no diagnostic manual. The author writes that a single case cannot establish a syndrome and that the evidence is insufficient to treat conophobia as a distinct disorder.
What was he actually diagnosed with?
Adjustment disorder with mixed emotional features. Intermittent explosive disorder was ruled out because he had no history of recurrent outbursts.
Why did doctors scan his head?
A scalp lump found at a routine visit was imaged and confirmed as a benign lipoma, which ruled out an organic cause for the behavior.
How was he treated?
No psychiatric medication. He chose art therapy over conventional psychotherapy and added yoga, and his symptoms resolved within weeks.
Does this mean frustration with roadwork is a medical problem?
Not on this evidence. One patient cannot establish prevalence or risk. Anyone whose driving anger is becoming dangerous should speak with a clinician.
