acute

Mesenteric adenitis

Treatment options, dosing, cautions and Egyptian brands from the shipped Dawaa Reference card.

Evidence status

Checked against the sources named below

Sources4 sources

Mesenteric Adenitis - StatPearls (NCBI Bookshelf NBK560822) - https://www.ncbi.nlm.nih.gov/books/NBK560822/ · Mesenteric adenitis - disease-level clinical article (mesenteric-adenitis-full.txt) · Mesenteric adenitis - disease-level clinical article (mesenteric-adenitis-clinical.txt) · MSF Essential Drugs 2024 (ibuprofen oral monograph)

Verified against4 documents

Mesenteric Adenitis - StatPearls (NCBI Bookshelf NBK560822) - https://www.ncbi.nlm.nih.gov/books/NBK560822/
Mesenteric adenitis - disease-level clinical article (mesenteric-adenitis-full.txt)
Mesenteric adenitis - disease-level clinical article (mesenteric-adenitis-clinical.txt)
MSF Essential Drugs 2024 (ibuprofen oral monograph)

Verified date2026-08

Presentation reference

Is it this?

Reference only, to read alongside your own examination.

Symptoms — what the patient reports (3)

Sudden right lower quadrant pain in a child under 10 favours mesenteric adenitis over appendicitis [abdominal pain · right lower quadrant pain]
It often follows a recent bout of gastroenteritis or an upper respiratory infection
Fever, vomiting, altered bowel habits, and periumbilical or right lower quadrant pain are typical [abdominal pain · fever · right lower quadrant pain · vomiting]

Signs — what you find (1)

Tenderness on palpation is noticeably milder than in acute appendicitis

Tests (7)

CBC and CRP are usually raised, but a normal result does not exclude the diagnosis
Urinalysis is mainly done to exclude a urinary tract infection
Blood tests cannot reliably tell appendicitis, intussusception, and mesenteric adenitis apart
Abdominal ultrasound is the reference test, diagnostic when it shows enlarged, low-echo nodes without a thickened, blind-ending appendix
A lymph node at least 8 mm across its short axis meets the current radiologic definition
In appendicitis the enlarged nodes tend to be fewer and smaller than in mesenteric adenitis
Adding superb microvascular Doppler imaging to ultrasound raised sensitivity from about 63% to 81.5% in one study

If not this — what else fits (3)

Appendicitis and intussusception are the leading differentials for similar pain in this age group
Gynaecologic and urologic causes considered include ovarian cyst rupture or torsion, ectopic pregnancy, testicular torsion, and epididymitis
Other differentials include mesenteric ischaemia, inflammatory bowel disease, lupus, malignancy, HIV, and tuberculosis

SourceMesenteric adenitis - disease-level clinical article (mesenteric-adenitis-full.txt)

Presentation findings are traced to the source above.

Rx: Pain and fever | Main treatment

PAIN AND FEVER

IBUPROFEN

Pain and fever

1st line

Strength400 mg

Formoral.liquid

Adult dose and duration

200 to 400 mg 3 to 4 times daily (maximum 1,200 mg daily) - A few days; the pain settles over days to weeks and does not need continuous treatment

Paediatric dose

5-10 mg/kg/dose [child max 400 mg]

(Child over 3 months: 5 to 10 mg/kg 3 to 4 times daily, maximum 30 mg/kg daily. Not for an infant under 3 months.)

Dose by weight
3kg	15-30 mg/dose
4kg	20-40 mg/dose
5kg	25-50 mg/dose
6kg	30-60 mg/dose
7kg	35-70 mg/dose
8kg	40-80 mg/dose
9kg	45-90 mg/dose
10kg	50-100 mg/dose
11kg	55-110 mg/dose
12kg	60-120 mg/dose
13kg	65-130 mg/dose
14kg	70-140 mg/dose
15kg	75-150 mg/dose
16kg	80-160 mg/dose
17kg	85-170 mg/dose
18kg	90-180 mg/dose
19kg	95-190 mg/dose
20kg	100-200 mg/dose
21kg	105-210 mg/dose
22kg	110-220 mg/dose
23kg	115-230 mg/dose
24kg	120-240 mg/dose
25kg	125-250 mg/dose
26kg	130-260 mg/dose
27kg	135-270 mg/dose
28kg	140-280 mg/dose
29kg	145-290 mg/dose
30kg	150-300 mg/dose
31kg	155-310 mg/dose
32kg	160-320 mg/dose
33kg	165-330 mg/dose
34kg	170-340 mg/dose
35kg	175-350 mg/dose
36kg	180-360 mg/dose
37kg	185-370 mg/dose
38kg	190-380 mg/dose
39kg	195-390 mg/dose
40kg	200-400 mg/dose
41kg	205-400 mg/dose (upper capped)
42kg	210-400 mg/dose (upper capped)
43kg	215-400 mg/dose (upper capped)
44kg	220-400 mg/dose (upper capped)
45kg	225-400 mg/dose (upper capped)
46kg	230-400 mg/dose (upper capped)
47kg	235-400 mg/dose (upper capped)
48kg	240-400 mg/dose (upper capped)
49kg	245-400 mg/dose (upper capped)
50kg	250-400 mg/dose (upper capped)

Dose source

MSF Essential Drugs 2024 (ibuprofen oral monograph)

Why

The cited article says mesenteric adenitis is self-limiting and needs no treatment once the surgical diagnoses have been excluded, and that management is supportive care with hydration and pain control using non-steroidal anti-inflammatory medicines. That is the whole of the drug treatment, and the dose is the standard one from the MSF monograph.

Cautions

EXCLUDE APPENDICITIS FIRST. Giving an anti-inflammatory to a child whose real problem is a surgical abdomen buys hours that the child does not have.
Give it with food. Avoid it in dehydration, in significant kidney disease, in active peptic ulceration and in asthma made worse by aspirin or another NSAID.
TELL THE FAMILY IT TAKES TIME. The article stresses that improvement may come slowly over several weeks and that saying so prevents a lot of anxiety and repeat attendance - and it asks for planned review during that window rather than open-ended reassurance.

Egyptian brands

Egyptian brand	Manufacturer	Indicative price
NOVA-PROFEN 100MG/5ML ORAL SUSP. 100ML? strength differs	SANOFI	2.25 EGP
BRUFEMOL-N SUSP. 60 ML? strength differs	ARAB DRUG COMPANY (ADCO)	4.50 EGP
IBUFEN 2% SUSP. 60ML? strength differs	ALEXANDRIA	4.50 EGP
MARCOFEN 100MG/5ML SUSP. 120ML? strength differs	GLAXO SMITHKLINE	5.85 EGP
PEOPOBRUF 50MG/1.25ML ORAL DROPS. 15 ML? strength differs	DELTA PHARMA > PEOPLE PHARMA	9.00 EGP
IBUCALMIN 100MG/5ML SYRUP 120 ML? strength differs	MASH PREMIERE	28.00 EGP
MEGAFEN-N 100MG/5ML SUSP. 120 ML? strength differs	RAMEDA	35.00 EGP
BRUFEN 100MG/5ML SYRUP 150ML? strength differs	KAHIRA > ABBOTT LABORATORIES	44.00 EGP
BRUFEMOL-N SUSP. 120 ML? strength differs? different route - not oral liquid	ARAB DRUG COMPANY (ADCO)	4.75 EGP
IBUPROFEN 100MG/5ML SUSP. 120 ML? strength differs? different route - not oral liquid	SEDICO	5.00 EGP

MAIN TREATMENT

REFERRAL & SAFETY-NETTING (NO DRUG THERAPY)

1st line

Dose source

Mesenteric Adenitis - StatPearls (NCBI Bookshelf NBK560822) - https://www.ncbi.nlm.nih.gov/books/NBK560822/

Why

Mesenteric adenitis matters because of what it is mistaken for. It needs no drug and no operation, but it can only be called after appendicitis has been excluded, so the safe use of the diagnosis is as a reason to image rather than a reason to reassure.

Cautions

IT IS AN APPENDICITIS MIMIC, AND THAT IS THE WHOLE POINT - right lower quadrant pain of sudden onset looks so much like appendicitis that it has long been taken for it. In one series, 70 children were given a clinical diagnosis of acute appendicitis, and 16% of them turned out in the end to have mesenteric adenitis - established at operation, on imaging, or by how the illness ran.
THE AGE AND THE STORY THAT POINT TOWARDS IT - below the age of ten, a child with sudden right lower quadrant pain is likelier to have mesenteric adenitis than appendicitis, and the adenitis often comes on the heels of a recent gastroenteritis or an upper respiratory infection.
AND THE EXAMINATION DIFFERENCE, SUCH AS IT IS - surgeons often observe that pressing on the abdomen hurts markedly less in mesenteric adenitis than it does in acute appendicitis. Softer tenderness is a hint, never a discharge.
BLOOD TESTS WILL NOT SETTLE IT - the white count and the CRP are usually raised, but normal values do NOT exclude the diagnosis. The article's own verdict on those same tests is that they are no help in separating appendicitis from intussusception or from mesenteric adenitis.
ULTRASOUND IS WHAT SETTLES IT - ultrasound of the abdomen is the standard against which the diagnosis is made. What is diagnostic is mesenteric lymph nodes that are enlarged and hypoechoic, with no thickened blind-ending tube - an inflamed appendix - to be seen. For size, at least one node must be abnormally enlarged, 8 mm or more measured across its short axis.
LARGE NODES ALONE DO NOT EXCLUDE AN APPENDIX - nodes enlarge in acute appendicitis too, and in a perforated one, which is part of why this is hard to call; but in appendicitis they tend to be fewer and less swollen.
SEND THE URINE TOO - a urinalysis earns its place by excluding a urinary tract infection.
NO DRUG TREATS IT - mesenteric adenitis settles by itself and calls for no treatment, so the first job in managing it is to exclude the diagnoses that need an operation. What is left is supportive: fluids intravenously, and pain relief with a non-steroidal anti-inflammatory. The article states no paediatric amount for any of them.
WARN THE FAMILY IT IS SLOW, OR THEY WILL GO SOMEWHERE ELSE - it matters to tell them that getting better may take a while, coming on gradually across several weeks. The pain usually goes within four weeks and leaves nothing behind.
BOOK THE FOLLOW-UP RATHER THAN LEAVING IT OPEN - it is reasonable to set clinic appointments through that period, to see how the child is progressing and to answer what worries the family.
WHAT ELSE HIDES BEHIND THE SAME PAIN - the article's own differential runs to appendicitis, intussusception, a ruptured ovarian cyst, an ovarian abscess, ectopic pregnancy, endometriosis, torsion of an ovary or of a testis, epididymitis and pelvic inflammatory disease; and further down, the inflammatory bowel diseases - Crohn's and ulcerative colitis - along with malignancy, the zoonotic infections, infectious mononucleosis and tuberculosis.
SOME OF IT IS BACTERIAL AND WORTH REMEMBERING IN EGYPT - two gram-negative organisms are well known to cause it: Yersinia pseudotuberculosis and Yersinia enterocolitica. Salmonella, E coli and the streptococci are named as further culprits.
THE HARM OF GETTING IT WRONG RUNS BOTH WAYS - these children are frequently labelled appendicitis, and in the past that meant an appendix removed for nothing. Getting the diagnosis wrong exposes a patient to invasive procedures they did not need, and to whatever those procedures then cost them.

Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy.