Related Experiment Video
Updated: Oct 23, 2025

Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry
Published on: October 2, 2016
Magic mushroom: all is not as it seems
Bárbara Neto Castro1, Raquel Prata Saraiva2, David Afonso João3
1General Surgery Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Portugal.
Background:
The late adverse effects of radiotherapy are caused by microvascular injury or depletion of differentiated cells.
Methods:
Here we describe a clinical case of a late and unusual complication related to radiotherapy, in a patient with a history of squamous cell carcinoma of the anal canal.
Results:
The patient presented with a large perianal vegetating lesion suspicious of local recurrence, however the biopsy of the lesion did not show malignancy.
Conclusion:
Fortunately, all is not as it seems, and what appeared as a suspected relapse turned out to be a benign reactive lesion, consequence of radiotherapy.
Related Concept Videos
Hallucinogens and Psychedelics
Marijuana, derived from the dried leaves and flowers of the hemp plant, contains...
CNS Stimulants: Psychedelic Agents
Fungal Phylum Basidiomycota
Altered States of Awareness
The ingestion of substances like stimulants or hallucinogens leads to chemical alterations in the brain...
An Overview of Psychoactive Drugs
Stimulants such as cocaine, amphetamines, and nicotine enhance brain activity, leading to increased alertness, attention, and energy. These drugs typically raise heart rate, blood pressure, and body temperature. While they can induce feelings of euphoria, their misuse can result in severe health...
Understanding Deception

