Surgeon probing woman’s mystery symptoms plucks worm from her brain

The parasite was discovered in the 64-year-old patient’s brain while a neurosurgeon at Canberra Hospital was performing a biopsy.

Surgeon probing Australian woman’s mystery symptoms plucks worm from her brain Canberra Health Services

A neurosurgeon investigating a woman’s mystery symptoms in an Australian hospital said she plucked a wriggling worm from the patient’s brain.

Surgeon Hari Priya Bandi was performing a biopsy through a hole in the 64-year-old patient’s skull at Canberra Hospital last year when she used forceps to pull out the parasite, which was 3in (8cm) long.

“I just thought ‘What is that? It doesn’t make any sense. But it’s alive and moving’,” she was quoted as saying in The Canberra Times newspaper on Tuesday.

“It continued to move with vigour. We all felt a bit sick,” Dr Bandi added of her operating team.

The creature was the larva of an Australian native roundworm not previously known to be a human parasite, named Ophidascaris robertsi. The worms are commonly found in carpet pythons.

Dr Bandi and Canberra infectious diseases physician Sanjaya Senanayake are authors of an article about the extraordinary medical case published in the latest edition of the journal Emerging Infectious Diseases.

The 3in parasitic worm was found in a woman’s brain during a biopsy at Canberra Hospital.Canberra Health Services

Dr Senanayake said he was on duty at the hospital in June last year when the worm was found.

“I got a call saying ‘We’ve got a patient with an infection problem. We’ve just removed a live worm from this patient’s brain’,” he told the Australian Broadcasting Corp.

The woman had been admitted to the hospital after experiencing forgetfulness and worsening depression over three months. Scans showed changes in her brain.

A year earlier, she had been admitted to her local hospital in south-east New South Wales state with symptoms including abdominal pain, diarrhoea, a dry cough and night sweats.

Dr Senanayake said the brain biopsy was expected to reveal a cancer or an abscess.

“This patient had been treated … for what was a mystery illness that we thought ultimately was a immunological condition because we hadn’t been able to find a parasite before and then, out of nowhere, this big lump appeared in the frontal part of her brain,” he said.

“Suddenly, with her (Dr Bandi’s) forceps, she’s picking up this thing that’s wriggling. She and everyone in that operating theatre were absolutely stunned,” he added.

The worms’ eggs are commonly shed in snake droppings which are eaten by small mammals. The life cycle continues as other snakes eat the mammals.

The woman lives near a carpet python habitat and forages for native vegetation called warrigal greens to cook.

While she had no direct contact with snakes, scientists hypothesise that she consumed the eggs from the vegetation or her contaminated hands.

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