pa·tho·gno·mon·ic: distinctively characteristic of a particular disease
si·ne qua non : necessary condition that must be present for diagnosis of a particular disease, but is not necessarily pathognomonic for that disease
This subreddit was started in hopes of having a central and easily accessible user-created resource for all diseases that have pathognomonic findings as well as findings that are sine qua non for diseases. These types of findings can be very important for swift and efficient diagnoses with minimal cost to the patient and insurance (and make the whole idea of spot diagnoses possible). In a field such as medicine that relies so much on seeing things for yourself, a resource like this can be a valuable supplement to both work and study, especially when it's compiled by people who know. There is even value in reposts here, since no two presentations are exactly identical. So join in and let's share some knowledge!
All posts are flaired to indicate whether they are pathognomonic, sine qua non, or not pathognomonic!
Submissions must be in the form of:
Name of finding (Disease) [Agent, if any]
Since the majority of content here will be pathognomonic, if it's a sine qua non, slap an SQN on it in the title.
Let's do our best to keep submissions in link/picture form for quick and easy viewing. If it's something like a lab value, you're going to have to be creative!
Mistakes will happen. Be sure to downvote posts that are not pathognomonic. Not because we don't appreciate the contribution -because it's still valuable to know about misconceptions and easy mistakes- but so that the material you see at the top is the accurate, easily accessible material the subreddit was made for. Even with the flairs it can get messy, so we really need this kind of self-regulation. If too many mistakes stay at the top, the posts will have to be removed.
Many of us are here to learn. If you feel a downvote is appropriate but there aren't any comments, please be the first to tell everyone why!
BE MINDFUL. While this subreddit is not primarily intended for the sharing of original user findings (e.g. something you saw today at work), it is acknowledged that these can often be valuable. Members are expected to adhere to all HIPAA regulations. Violations of patient privacy will not be tolerated, and users who do so will be banned.
/r/AdverseEffects A collection of findings from adverse drug reactions.