Rad Onc Mnemonics

Hashtag Legend: #ROMCNS #ROMBreast #ROMGU #ROMGI #ROMGYN #ROMLym #ROMPeds #ROMHN #ROMLung #ROMDDX = differentials #ROMBasic = basic sciences #ROMdrugs = incl chemo/targeted agents

Electrolyte disturbances with tumor lysis syndrome "Drinking from a KUP without the C gives you renal failure" KUP (potassium, urea, phosphate) = elevated C (calcium)= low Source: modified by @TZ_TinaZhang from usmle.kyujinjeon.com/electrolyte-ab… #ROMBasic

Differentiating between 2 key low grade glioma trials: EORTC 22844 = ends on even # = "Believer's Trial" = 45Gy vs. 59.4Gy (both RT upfront) EORTC 22845 = ends on odd # = "Non-Believer's Trial" = upfront RT vs. delayed RT at progression #ROMCNS

Try using the acronym "GRAPE" and the accompanying table to remember a few key differences between type I and type II endometrial cancer ! #ROMGYN

@JahanMohiuddin @TZ_TinaZhang Nice tweak, I like it! Got us looking up chicken BLT recipes now...

@RadOncMnemonics @TZ_TinaZhang Or substitute “lung” for bronchogenic and get Mr C BLT

Most common primary cancers that can cause hemorrhagic brain mets "MR CT BB" Melanoma, Renal cell, Choriocarcinoma, Thyroid, Breast, Bronchogenic Source: radiopaedia.org/articles/haemo… Thanks @TZ_TinaZhang !

Cartoon mnemonic for Cowden Syndrome Cow (Cowden) in a Pen (PTEN gene) spots=think of harmatomas of skin & mucosa bell=thyroid ca feces=colon ca udder=breast & endo ca #ROMBreast #ROMBasic #ROMGI Source: @RadOncMnemonics

Predicting life expectancy in patients receiving palliative radiotherapy using the TEACHH model from Krishnan et al #ROMPalliative Source: ncbi.nlm.nih.gov/pubmed/24122413

A few contraindications to intravesical BCG for bladder cancer: "BCG" B=Bladder infection (UTI)/ Bladder surgery (within 7-14d post) C=Counts low (immunosuppression) G=Gross hematuria #ROMGU Source: @RadOncMnemonics Ref: AUA guidelines

Layers of the Scrotum "Splits Decrease Enjoyment 'Cause It Traumatizes Testes" Skin Dartos muscle and fascia External spermatic fascia Cremasteric fascia Internal spermatic fascia Tunica vaginalis Tunica albuginea Source: @RadOncMnemonics #ROMGU

DDx for PAINLESS testicular mass "CHIVES" Cancer (testicular, lymphoma) Hydrocele Inguinal hernia (not incarcerated) Varicocele Edema (lymphedema) Spermatocele This ones a bit of a stretch. Chives = calming = not painful? I welcome other thoughts! #ROMGU #ROMDDX

DDx for PAINFUL testicular mass "TESTI" Torsion Epididymitis Stuck hernia (incarcerated) Trauma Infection (abscess) "He was feeling TESTI because he was in pain" #ROMGU #ROMDDX

Big thanks to Amanda (instagram: @maivi_n_) for the fantastic custom-made comic for this mnemonic! More collaboration with her to come!

Villaret syn: tumor in retroparotid space near jug foramen -> CN9-12 dysfunction + Horner's syn Comic Legend: Villain= Villaret Bush= Retroparotid space Jug Vein + Foreman= Jugular foramen 9-12 oclock= cranial nervs 9-12 Evil eye + Horn= Horner's syn Artwork: Amanda Nguyen

Cahan's criteria for radiation-induced sarcoma: "LIPS" Latent (at least 3-5 years since RT) In-field of previous radiation Previously irradiated Sarcoma histology on biopsy Source: @RadOncMnemonics link.springer.com/referenceworke…

DDx Leptomeningeal Carcinomatosis on MR "LEPTO MASS" Lyme disease Extracranial mets (skull, dural) Parenchymal mets, Primary lepto melanomatosis Treatment effect (post-RT, post LP) Opportunistic infect (e.g.TB) Meningitis Artifact Sarcoidosis Small vessels #ROMCNS #ROMDDX

Pros for GYN HDR Brachy (vs. LDR) "FASTER" Faster tx time Adjustments can occur between insertions Sources readily avail Time in hosp shorter Exposure to staff less Real-time optimization #ROMGYN source: @RadOncMnemonics

@ARRO_org Thanks for the shout-out!

Helpful #RadOnc mnemonics from @RadOncMnemonics! #ARRO

Features of a good screening program based on Wilson criteria: "WILSON" Would be easy to do, interpret, and accepted by health profession Important problem Latent stage recognisable Specific,Sensitive Outcomes change with early dx & tx Not expensive, Nat his understood #ROMBASIC

Vestibular schwannoma (acoustic neuroma) vs. Meningioma Meningiomas: - *lack enhancement within internal acoustic canal* - have broad dural contact - +/- dural tail Image: vestibular schwannoma (left), meningioma (right); source = google image #ROMCNS

Source: @RadOncMnemonics , UptoDate

Items in Mirel's score (predicts risk of path fracture w/ bone mets) "MIREL'S" M=Mass type (eg. lytic) I=Intensity of pain R=Ratio of lesion size to cortex (eg.1/3 cortex) E=Eight (consider fixation w/ score >=8) L=Location 'S=Looks like "15" (score 8 =15% risk #) #ROMPall