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SAEM Clinical Images Series: Painful Red Eye

The patient is a 60-year-old male with a history of insulin-dependent diabetes, hypertension, and hyperlipidemia who presents to the Emergency Department after one day of sudden onset right eye pain associated with nausea and vomiting. He notes progressively blurring vision and vision loss in his right eye since the onset of the pain. His wife noted redness of his sclera and urged him to go the emergency department. He can now only sense light and shadows with his right eye. He denies traumatic injury or any history of serious ophthalmological pathology. He wears corrective eyeglasses and does not use contacts. He has no other complaints at this time.

 

Vitals: BP 149/83; HR 107; R 17; T 98.9°F; O2 sat 100 on room air.

General: Appears to be in pain and uncomfortable.

HEENT: As shown. Extraocular movements are intact. The right pupil is fixed and dilated with a relative afferent pupillary defect. There is no sign of traumatic injury.

Neck: There are no carotid bruits auscultated.

Cardiovascular: Regular rate and rhythm, no murmur.

Neurologic: Normal other than the abnormal findings of the right eye.

Imaging: POCUS of the right eye is performed, image as shown.

Acute angle-closure glaucoma.

Ultrasound shows retinal detachment with subretinal hemorrhage and associated choroidal detachment.

Acute angle-closure glaucoma occurs due to a rapid increase in intraocular pressure (IOP) due to outflow obstruction of the aqueous humor. Patients with a shallower angle between the iris and the cornea in the anterior chamber are predisposed to this condition. This is characterized clinically by severe eye pain, headache, nausea, vomiting, blurred vision, and multicolored halos around lights. If left untreated, this can result in optic neuropathy and vision loss. The diagnosis of acute angle-closure glaucoma is confirmed with elevated intraocular pressure (IOP) measurements obtained via tonometry. Normal IOPs are between 10 and 21 mmHg. The pressure in this patient’s right eye was 47 mmHg. Slit-lamp microscope exam showed a shallow anterior chamber, corneal edema, fixed dilated pupil, and conjunctival injection around the limbus (ciliary flush). Uncommonly, retinal and choroidal detachment may cause secondary acute angle-closure glaucoma, as seen in this case. Treatment includes medical and surgical interventions to reduce IOP, address underlying causes, and manage associated pain and nausea.

Take-Home Points

  • Retinal detachments are seen as a “V”-shaped hyperechoic and freely moving membrane tethered to the optic disc on ultrasound.

  • Acute angle-closure glaucoma is an ocular emergency. Delays in treatment can result in optic neuropathy and permanent vision loss.

  • Stenberg RT, Nelson J, Rabinowitz J, Simon EL. Spontaneous Hyphema and Vitreous Hemorrhage Causing Secondary Glaucoma in a Patient on Apixaban. J Emerg Med. 2023;64(3):359-362. doi:10.1016/j.jemermed.2022.12.021
  • Jersey A, Perice L, Li N, Johnson J, Dulani T. Acute Angle-Closure Glaucoma Secondary to Vitreous Hemorrhage Diagnosed with the Aid of Point-of-Care Ultrasound. J Emerg Med. 2020 Dec;59(6):e235-e237. doi: 10.1016/j.jemermed.2020.08.015. Epub 2020 Sep 29. PMID: 33004244.
  • Chen SN, Ho CL, Ho JD, Guo YH, Chen TL, Chen PF. Acute angle-closure glaucoma resulting from spontaneous hemorrhagic retinal detachment in age-related macular degeneration: case reports and literature review. Jpn J Ophthalmol. 2001 May-Jun;45(3):270-5. doi: 10.1016/s0021-5155(00)00382-8. PMID: 11369377.

Copyright

Images and cases from the Society of Academic Emergency Medicine (SAEM) Clinical Images Exhibit at the 2025 SAEM Annual Meeting | Copyrighted by SAEM 2025 – all rights reserved. View other cases from this Clinical Image Series on ALiEM.



By |2026-03-10T21:17:06-07:00Mar 20, 2026|Ophthalmology, SAEM Clinical Images|
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Trick of Trade: Using Sterile Lubricating Gel to Manage Bloody Scalp Lacerations | A Simple Gel, a Big Fix

scalp laceration bloody gel
One of the classic scenarios encountered in the emergency department involves an elderly patient with medium to long hair who sustains a scalp laceration after a ground-level fall. They often arrive hemodynamically stable and without bony crepitus, yet the wound itself is challenging to evaluate. During transport, clotted blood frequently becomes entangled in their hair, forming a dense mat that obscures the laceration. The care team—technicians, nurses, residents, and physicians alike—may spend several minutes painstakingly separating hair and pressing on a tender scalp in an effort to expose the wound. This process is uncomfortable for the patient, time-consuming for staff, and often leaves behind residual clot. In many cases, the fallback option is to shave the matted area, which achieves exposure but results in a visible cosmetic defect.

Trick of the Trade

Applying sterile lubricating gel as a pre-irrigation adjunct [1]. It softens the clot, separates matted hair, and makes the whole process faster and gentler.

Technical Procedure · Emergency Medicine

Sterile Gel in Scalp Prep

How It Works

When a scalp laceration is obscured by clotted blood and tangled hair:

  1. Inspect for debris or foreign bodies; give a quick rinse if needed.
  2. Apply a generous amount of sterile, water-soluble lubricating gel (e.g., glycerin- or propylene-glycol–based).
  3. Wait 3-5 minutes to allow the gel to hydrate and loosen the clot, though clot dissolution is usually visible within 10-20 sec.
  4. Gently massage the area to separate hair and soften the meshwork.
  5. Irrigate or wipe with wet gauze to clear the gel. Saline or tap water both work great.
  6. Proceed with standard wound cleansing and repair once the wound is visible and clean.

In our experience with over a dozen cases at a tertiary emergency department, we found that this technique improved visualization, reduced discomfort, and required less follow-up irrigation overall—without any reported complications.

Why It’s Useful

  • Less irrigation, less hassle: Adequate wound visualization can often be achieved with less irrigation fluid.
  • Resource resilience: Especially useful in rural, wilderness medicine, or international emergency settings where any irrigant may be limited.
  • Patient comfort: Reduces painful scraping and hair pulling, with particular benefit noted in pediatric patients.
  • Safety: Sterile lubricating gels are non-cytotoxic, bacteriostatic, and easy to rinse off with whatever clean fluid you have on hand.

Important Notes

This gel trick is an adjunct, not a replacement, for wound irrigation and mechanical debridement. Avoid using this as the sole cleaning step in contaminated wounds.

Take-Home Points

Sterile lubricating gel can simplify scalp laceration prep by loosening clot and separating hair before irrigation. It is safe, inexpensive, and already available in most EDs.

References

  1. Kang JK, Shin MS, Song JK, Yun BM. Hair control during scalp surgery using a sterile gel technique. Arch Aesthetic Plast Surg. 2018;24(1):46-48. doi:10.14730/aaps.2018.24.1.46
By |2026-03-11T14:06:47-07:00Mar 18, 2026|Trauma, Tricks of the Trade|
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SAEM Clinical Images Series: Perioral Facial Swelling

The patient is a 40-year-old male with no significant past medical history who presents to the Emergency Department with perioral rash and swelling. He had been in his normal state of health the day before and woke up in the morning with an itchy rash around his mouth. He denies lip, tongue, or intraoral swelling, throat itching or sensation of throat swelling, trouble swallowing, or swelling or itching of any other part of his face. The rash has not changed locations nor has it spread beyond the perioral area. He noted a similar episode once or twice before in his life, which had improved with taking diphenhydramine. He denies the presence of a rash or itching on any other part of his body, wheezing, shortness of breath, GI symptoms, or dizziness. He denies any exposure to new foods or medications, and he has not been exposed to ACE inhibitors nor ARBs. He has no other complaints at this time.

 

Vitals: BP 141/97; HR 88; R 19; T 98.2°F; O2 sat 98% on room air.

General: Awake and alert, no distress, speaking in a clear voice.

HEENT: As shown in the images provided. There is no oropharyngeal swelling. There is no stridor.

Respiratory: Clear to auscultation, no wheezes.

Skin: There is no rash or swelling elsewhere on the patient’s body.

Non-contributory

The patient has been dyeing his facial hair.

Para-phenylenediamine.

Upon further questioning, the patient admitted to applying an “instant hair dye shampoo” to his facial hair the day before presentation. Review of the product ingredients revealed para-phenylenediamine. He later recalled that his previous episodes of peri-oral swelling had occurred after exposure to the same product. Para-phenylenediamine can be found in commercial black and dark brown hair dyes, as well as in henna tattoos. Reactions can range from local erythema and contact dermatitis to bullous dermatitis and significant edema in severely affected patients. Symptoms may appear similar to angioedema and may only be distinguished after careful history identifies hair dye or henna exposure. Initial management is to remove the offending dye or henna with thorough washing. Topical steroids or a short course of oral steroids can be used for severe symptoms. Prevention of exposures in sensitized individuals remains the most important tenet of care. Hair dyes recommend consumers test the dye on a small patch of skin prior to using it, which has been proven to help identify those who will develop a reaction.

Take-Home Points

  • Para-phenylenediamine is a compound found in henna and hair dye that is commonly responsible for adverse skin reactions, but may be under recognized when used for facial hair.

  • Allergic contact dermatitis from this compound may show a range of clinical skin findings and sometimes may mimic angioedema.

  • Mukkanna KS, Stone NM, Ingram JR. Para-phenylenediamine allergy: current perspectives on diagnosis and management. J Asthma Allergy. 2017 Jan 18;10:9-15. doi: 10.2147/JAA.S90265. PMID: 28176912; PMCID: PMC5261844.
  • Krasteva M, Cristaudo A, Hall B, Orton D, Rudzki E, Santucci B, Toutain H, Wilkinson J. Contact sensitivity to hair dyes can be detected by the consumer open test. Eur J Dermatol. 2002 Jul-Aug;12(4):322-6. PMID: 12095875.

Copyright

Images and cases from the Society of Academic Emergency Medicine (SAEM) Clinical Images Exhibit at the 2025 SAEM Annual Meeting | Copyrighted by SAEM 2025 – all rights reserved. View other cases from this Clinical Image Series on ALiEM.



By |2026-03-10T21:10:56-07:00Mar 16, 2026|Allergy-Immunology, SAEM Clinical Images, Tox & Medications|
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ALiEM AIR Series | Endocrine Module (2025)

ALiEM AIR Certified seal and Endocrine 2025 module shield badge

Welcome to the AIR ENDOCRINE Module! After carefully reviewing all relevant posts in the past 12 months from the top 50 sites of the Digital Impact Factor [1], the ALiEM AIR Team is proud to present the highest quality online content related to endocrine emergencies in the Emergency Department. 11 blog posts met our standard of online excellence and were approved for residency training by the AIR Series Board. More specifically, we identified 6 AIR and 5 Honorable Mentions. We recommend programs give 5.5 hours of III credit for this module.

AIR Stamp of Approval and Honorable Mentions

In an effort to truly emphasize the highest quality posts, we have 2 subsets of recommended resources. The AIR stamp of approval is awarded only to posts scoring above a strict scoring cut-off of ≥30 points (out of 35 total), based on our scoring instrument. The other subset is for “Honorable Mention” posts. These posts have been flagged by and agreed upon by AIR Board members as worthwhile, accurate, unbiased, and appropriately referenced despite an average score.

Want asynchronous Individualized Interactive Instruction (III) credit?
Take the AIR quiz at ALiEMU. Free, 1-time login required.

Take the Endocrine Module →

Highlighted Quality Posts: Endocrine 2025

SiteArticleAuthorDateLabel
EMCritHyperosmolar hyperglycemic state (HHS)Dr. Josh FarkasJune 1, 2024

AIR

EMCritHypokalemiaDr. Josh FarkasJuly 4, 2024AIR
EMCritHyperkalemiaDr. Josh FarkasNovember 5, 2024AIR
EMCritHyperkalemiaDr. Josh FarkasJuly 4, 2024AIR
EMCritHyponatremiaDr. Josh FarkasJuly 4, 2024AIR
EM OttawaThese are the Roids you are looking for – Steroids in the EdDr. Naman AroraJanuary 9, 2025AIR
EMCrit

Hypernatremia and dehydration in the ICU

Dr. Josh FarkasJuly 5, 2024AIR
Rebel EMHyperkalemiaDr. Anand SwaminathanJune 26, 2024HR
EM DocsAlcohol WithdrawalDr. Kyler OsborneDecember 18, 2024HR
St Emlyns BlogGLP-1A tocxicity: What do emergency clinicians need to know about drugs like ozempic and wegovy?Dr. Gregory YatesNovember 24, 2024HR
UMEM PearlsEuglycemic DKA Pitfalls and PearlsDr. Cody CouperusAugust 20, 2024HR

(AIR = Approved Instructional Resource; HM = Honorable Mention)

If you have any questions or comments on the AIR series, or this AIR module, please contact us!

By |2026-04-29T12:02:14-07:00Mar 15, 2026|Approved Instructional Resources (AIR series), Endocrine-Metabolic|
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SAEM Clinical Images Series: Green Foot

The patient is a 59-year-old male with a history of prior DVT, atrial fibrillation, HTN, alcohol use and COPD who presents to the Emergency Department with chest pain, dyspnea, and left lower extremity swelling and pain. He had a prior hospital admission two weeks ago for leg swelling and cellulitis. He was previously prescribed oral gentamicin and topical mupirocin for concerns of foot infection, which he has been compliant with taking. He has been working long hours as a construction worker, but knows of no chemical exposure to his feet and denies walking barefoot. He has had no fever and denies any other complaints at this time.

 

Vitals: BP 151/69; HR 93; R 18; T 97.7°F; O2 sat 95% room air.

General: No acute distress.

Respiratory: Mild wheezes bilaterally.

Extremities: Mild bilateral lower extremity swelling, worse on left compared to right. Left foot discolored as shown in the image – when asked, the patient states the discoloration started initially on the great toenail and progressed to the sole of the foot.

CBC: WBC: 10.2; Hgb: 12.7

Na: 130

ESR: 6

CRP: 0.8

CXR: Mild pulmonary edema.

Foot X-ray: No acute findings, old Lisfranc injury.

Ultrasound: Negative for DVT.

The patient has Green Foot Syndrome.

Pseudomonas aeruginosa

Green foot syndrome is a rarely diagnosed Pseudomonas aeruginosa infection secondary to chronic skin moisture of the feet, identified from the greenish discoloration of skin. The green discoloration is due to pyocyanin and pyoverdine, giving the skin a bluish-green color. Symptoms can also include pruritus, pain, malodor, and paresthesias. Our patient was admitted to the hospital with dermatology consultation, who recommended vinegar soaks, gentamicin cream, and 0.3% ciprofloxacin solution. Other case studies have reported successful treatment by removing the inciting agent and keeping skin dry, acidic soaks such as benzoyl peroxide, and/or oral fluoroquinolones. Green foot syndrome has been reported in soldiers wearing combat boots for long hours and in patients during prolonged cast use. The moist environment of damp skin in boots provides an ideal environment for P. aeruginosa to grow. Our patient often wore construction boots with 2 pairs of socks for long hours at work, which made him susceptible to this infection.

Take-Home Points

  • When patients present with lower extremity complaints, always carefully assess the feet; this patient’s initial complaint was not skin discoloration.

  • Pseudomonas aeruginosa infections can cause a greenish discoloration to feet chronically kept in moist conditions, such as frequent and extended shoe or cast use.

  • García-Martínez FJ, López-Martín I, Castellanos-González M, Segurado-Rodríguez MA. Green foot ulcers. Enferm Infecc Microbiol Clin. 2017 Oct;35(8):536-537. English, Spanish. doi: 10.1016/j.eimc.2015.10.010. Epub 2015 Nov 26. PMID: 26627144.
  • Spernovasilis N, Psichogiou M, Poulakou G. Skin manifestations of Pseudomonas aeruginosa infections. Curr Opin Infect Dis. 2021 Apr 1;34(2):72-79. doi: 10.1097/QCO.0000000000000717. PMID: 33492004.
  • Wu DC, Chan WW, Metelitsa AI, Fiorillo L, Lin AN. Pseudomonas skin infection: clinical features, epidemiology, and management. Am J Clin Dermatol. 2011 Jun 1;12(3):157-69. doi: 10.2165/11539770-000000000-00000. PMID: 21469761.
  • Sloan B, Meffert JJ. “Boot foot” with pseudomonas colonization. J Am Acad Dermatol. 2005;52(6):1109-1110. doi:10.1016/j.jaad.2005.01.105
  • Park, Y., & Bae, J. (2013). Green foot syndrome: A case series of 14 patients from an armed forces hospital. Journal of the American Academy of Dermatology, 69(4), e198-e199. https://doi.org/10.1016/j.jaad.2013.05.012
  • Lee SH, Cho SB. Cast-related green foot syndrome. Clin Exp Dermatol. 2009;34(7):2008-2009. doi:10.1111/j.1365-2230.2009.03317.x
  • Macgregor DM. An unusual presentation of immersion foot. Br J Sports Med. 2004 Aug;38(4):E11. doi: 10.1136/bjsm.2003.007385. PMID: 15273204; PMCID: PMC1724852.

Copyright

Images and cases from the Society of Academic Emergency Medicine (SAEM) Clinical Images Exhibit at the 2025 SAEM Annual Meeting | Copyrighted by SAEM 2025 – all rights reserved. View other cases from this Clinical Image Series on ALiEM.



By |2026-03-04T10:25:32-08:00Mar 13, 2026|Infectious Disease, SAEM Clinical Images|
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SAEM Clinical Images Series: Connect the Dots

The patient is a 39-year-old female with past medical history of polysubstance use disorder and seizures who presents to the Emergency Department complaining of bilateral leg pain, primarily in her joints. She states that she was seen by her PCP today and was given a shot of Toradol, but she reports that her pain has continued to worsen to the point that she has difficulty ambulating. She states that two days ago she developed pruritic blisters on her feet and her feet began to swell. She reports the blisters have worsened and have spread to her hands and forearms as well as her calves and thighs. She denies ever having similar symptoms in the past. She reports some subjective fevers and chills as well as cough and congestion, but denies sore throat, chest pain, abdominal pain, vomiting, diarrhea, dysuria, vaginal bleeding, or vaginal discharge. She denies any recent travel and denies any animal exposure other than her mother’s dog but there are no fleas that she knows of. She denies any recent insect bites. She states that she has been sexually active with one male partner over the last six months and that she has tested negative for STIs in the last two months. She has no other complaints at this time.

 

Vitals: BP 121/77; HR 107; R 22; T 100.8°F; O2 sat 98% room air.

General: Appears mildly uncomfortable but no acute distress.

HEENT: Normal, no signs of pharyngitis.

Respiratory: Clear to auscultation bilaterally.

Cardiovascular: Tachycardia without murmur.

Abdomen: Non-tender, no masses.

Extremities: There are no signs of trauma. Full range of motion but complaints of joint pain with moving her legs and with walking.

Skin: Relevant findings as shown. Discrete, tender, erythematous macules and vesicles on the bilateral feet, calves, forearms and a singular vesicle of the right1st digit

Urinalysis: Small amount of bacteria

This patient has disseminated gonococcal infection.

Disseminated gonococcal infection (DGI) is a serious complication of untreated gonorrhea, potentially leading to severe complications such as septic arthritis, pustular skin lesions, tenosynovitis, and in rare cases, endocarditis or meningitis. DGI is characterized by fevers, polyarticular joint pain, and skin lesions. The diagnosis of disseminated gonorrhea should be considered in any patient presenting with polyarticular joint pain or swelling in the setting of petechial or pustular skin lesions, especially in high risk populations. The skin lesions of disseminated gonorrhea most commonly appear on the distal extremities, and may involve the palms and soles. Patients may also present with acute septic arthritis without an obvious source. Patients with gonoccocal bacteremia may show signs of perihepatitis, meningitis, endocarditis, or osteomyelitis. Disseminated gonococcal infection results from the hematogenous spread of N gonorrhoeae, and typically develops within 3 weeks of primary mucosal infection. Patients with disseminated gonoccocal infection should be admitted for intravenous antibiotics (ceftriaxone). Any sexual partners should be treated as well.

Take-Home Points

  • Consider disseminated gonorrhea when you have a patient with polyarticular joint pain/swelling with pustular skin lesions.

  • Complications of DGI may be severe; admission and aggressive treatment with intravenous antibiotics is warranted.

  • Tang et al. Characterizing the rise of disseminated gonococcal infections in California, July 2020-July 2021. Clin Infect Dis. January 2023;76(2):194-200.
  • Wang CH, Lu CW. Images of the month 2: Disseminated gonococcal infection presenting as the arthritis-dermatitis syndrome. Clin Med (Lond). 2019 Jul;19(4):340-341. doi: 10.7861/clinmedicine.19-4-340. PMID: 31308120; PMCID: PMC6752240.

Copyright

Images and cases from the Society of Academic Emergency Medicine (SAEM) Clinical Images Exhibit at the 2025 SAEM Annual Meeting | Copyrighted by SAEM 2025 – all rights reserved. View other cases from this Clinical Image Series on ALiEM.



By |2026-03-04T10:20:27-08:00Mar 9, 2026|Infectious Disease, SAEM Clinical Images|
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