Skip to content
How It Works
Explore
Ask a Question Resources Pricing
Who It's For
Patients
Decode results, prep for appointments, weigh options.
Caregivers & advocates
Carry the research load for someone you love.
Providers & clinicians
Resources for patients in your practice.
Log In Ask a Question
PubMed This is a summary of 18 peer-reviewed journal articles Updated
Gynecology

The Diagnostic Journey and Finding Clarity

At a Glance

Chronic salpingo-oophoritis is evaluated with symptoms, a pelvic exam, and imaging such as transvaginal ultrasound, MRI, or CT. If scans do not explain persistent pain, diagnostic laparoscopy may help find adhesions or subtle endometriosis, but it is not automatic.

The road to a diagnosis of chronic salpingo-oophoritis is rarely a single step. Because the symptoms—persistent pelvic pain, pressure, and discomfort—overlap with many other conditions, doctors must act like detectives, using imaging and physical exams to rule out “look-alikes” and confirm structural changes in your reproductive system [1][2].

The Challenge of the “Look-Alikes”

One of the most common hurdles in your diagnostic journey is distinguishing chronic PID from other pelvic conditions. These conditions can coexist, making the process even more complex [1]:

  • Endometriosis: This involves tissue similar to the uterine lining growing outside the uterus. While PID is often the result of an infection, endometriosis is a chronic inflammatory condition [3]. If your pain is strictly tied to your menstrual cycle, endometriosis is often a primary suspect [2].
  • Adenomyosis: Often called “endometriosis of the muscle,” this occurs when uterine lining tissue grows into the muscular wall of the uterus [4]. It often causes a “boggy” or enlarged uterus and heavy, painful periods [4].
  • Appendicitis: Because the appendix is located near the right fallopian tube and ovary, an infection in one can look exactly like an infection in the other on a quick scan [5][6].

The Diagnostic Sequence

Your care team will typically follow a specific sequence of tests to build a picture of what is happening inside your body:

  1. Pelvic Exam: While your doctor looks for cervical motion tenderness (pain when the cervix is moved), this finding is not specific to PID; it simply suggests that there is inflammation in the pelvic area [7][8].
  2. Transvaginal Ultrasound (TVS): This is the first-line imaging tool. It is highly effective at spotting hydrosalpinx (a fluid-filled tube), which often appears as a “sausage-shaped” or tubular structure next to the ovary [9][10].
  3. MRI or CT: If the ultrasound is unclear, an MRI can provide a more detailed look at the soft tissues. It is particularly good at identifying the difference between simple fluid and pyosalpinx (pus-filled tubes) [11]. A CT scan is often used in emergency settings to rule out appendicitis or a tubo-ovarian abscess (TOA) [12].
  4. Diagnostic Laparoscopy: If imaging is normal but pain persists, this minimally invasive surgery allows a doctor to look directly at the organs [13]. While very helpful for identifying adhesions (scar tissue) or small endometriosis implants that scans might miss [14][15], it is not an automatic next step. It is a shared decision that carries surgical risks, and finding adhesions does not guarantee that cutting them will resolve your pain.

Deciphering Your Reports

When you review your imaging or pathology results, specific keywords can help you understand your diagnosis. Look for these terms as clues rather than definitive diagnoses:

Term in Report What it Likely Means
Anechoic tubular structure Highly suggestive of hydrosalpinx (fluid in the tube) [10].
Fat stranding A nonspecific sign of active or recent inflammation in the surrounding tissues [16].
Plasma cells If found in an endometrial biopsy (histology), these are a hallmark of chronic inflammation, often pointing to chronic endometritis [17].
Adnexal mass A general term for a growth or swelling near the uterus; it could be a cyst, an abscess, or a scarred tube [18].
Restricted diffusion A technical MRI term that often indicates the presence of pus, suggesting pyosalpinx or an abscess, but can also reflect other cellular processes [11].

A “normal” scan does not always mean your pain isn’t real; it may simply mean the changes are microscopic or involve filmy adhesions that require a closer look or alternative pain management strategies [15][14].

Common questions in this guide

How do doctors evaluate chronic salpingo-oophoritis?
Evaluation usually combines your symptoms and a pelvic exam with imaging. Transvaginal ultrasound is often the first imaging test; MRI or CT and, in selected cases, diagnostic laparoscopy may be used when the findings are unclear or pain continues.
What can a transvaginal ultrasound show if I have chronic salpingo-oophoritis?
It can show hydrosalpinx, a fallopian tube filled with fluid, which may look like a tubular or sausage-shaped structure beside the ovary. An anechoic tubular structure supports this possibility but is not, by itself, a complete diagnosis.
Could endometriosis or adenomyosis be causing similar pelvic pain?
Yes. Endometriosis, adenomyosis, and chronic pelvic inflammatory disease can produce overlapping pelvic pain, so clinicians compare the timing and pattern of symptoms with examination and imaging findings. Pain that follows the menstrual cycle may raise suspicion for endometriosis, while adenomyosis can cause an enlarged uterus and heavy, painful periods.
Why might I need an MRI or CT after an ultrasound?
MRI provides a more detailed view of pelvic soft tissues and can help distinguish simple fluid from pus in a fallopian tube. CT may be used in an emergency to look for appendicitis or a tubo-ovarian abscess when those problems could resemble pelvic infection.
When is diagnostic laparoscopy considered for persistent pelvic pain?
It may be considered when imaging does not explain ongoing pain and the patient and clinician agree that direct examination is worthwhile. Laparoscopy can identify adhesions or small areas of endometriosis that scans miss, but it has surgical risks and cutting adhesions does not guarantee pain relief.
What do common chronic pelvic pain report terms mean?
Fat stranding is a nonspecific sign of inflammation nearby, while restricted diffusion can suggest pus but may have other causes. Plasma cells in an endometrial biopsy can support chronic inflammation, and an adnexal mass simply describes a swelling near the uterus; these findings need clinical interpretation.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Does my imaging specifically mention a 'tubular anechoic structure,' and if so, does that favor a diagnosis of hydrosalpinx over an ovarian cyst?
  2. 2.Given my symptoms, how are you ruling out endometriosis or adenomyosis, which can have very similar pain patterns?
  3. 3.If my ultrasound and MRI were normal but my pain persists, is a diagnostic laparoscopy the next appropriate step to check for adhesions or 'silent' PID?
  4. 4.In my pathology report, were there 'plasma cells' or 'fibrosis' found, and what do those tell us about how long the inflammation has been present?
  5. 5.Does the 'thickening' mentioned in my report refer to my fallopian tubes or the ligaments supporting my uterus?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (18)
  1. 1

    Identification and Treatment of Acute Pelvic Inflammatory Disease and Associated Sequelae.

    Frock-Welnak DN, Tam J

    Obstetrics and gynecology clinics of North America 2022; (49(3)):551-579 doi:10.1016/j.ogc.2022.02.019.

    PMID: 36122985
  2. 2

    Shining light in a dark landscape: MRI evaluation of unusual localization of endometriosis.

    Gui B, Valentini AL, Ninivaggi V, et al.

    Diagnostic and interventional radiology (Ankara, Turkey) 2017; (23(4)):272-281 doi:10.5152/dir.2017.16364.

    PMID: 28703103
  3. 3

    MRI in the Diagnosis of Endometriosis and Related Diseases.

    Kido A, Himoto Y, Moribata Y, et al.

    Korean journal of radiology 2022; (23(4)):426-445 doi:10.3348/kjr.2021.0405.

    PMID: 35289148
  4. 4

    Symptoms and classification of uterine adenomyosis, including the place of hysteroscopy in diagnosis.

    Gordts S, Grimbizis G, Campo R

    Fertility and sterility 2018; (109(3)):380-388.e1 doi:10.1016/j.fertnstert.2018.01.006.

    PMID: 29566850
  5. 5

    Role of computed tomography in imaging of endometriosis.

    Ghosh S, Alhamshari A, Prajapati P, et al.

    Abdominal radiology (New York) 2025; (50(10)):4886-4900 doi:10.1007/s00261-025-04907-x.

    PMID: 40146309
  6. 6

    Bilateral recurrent pyosalpinx in a sexually inactive 12-year-old girl secondary to rare variant of Mullerian duct anomaly.

    Maraqa T, Mohamed M, Coffey D, et al.

    BMJ case reports 2017; (2017()) doi:10.1136/bcr-2016-218924.

    PMID: 28647716
  7. 7

    Cervical Tenderness (Parametropathy) is a Diagnostic Tool for the Chronic Pelvic Pain Syndrome.

    Weinschenk S, Strowitzki T, Topbas Selcuki NF, et al.

    Pain and therapy 2025; (14(5)):1443-1459 doi:10.1007/s40122-025-00760-4.

    PMID: 40640537
  8. 8

    Diagnostic accuracy of pelvic examination in pelvic inflammatory disease: A meta-analysis.

    Iwata H, Sugiyama Y, Satoi Y, et al.

    Journal of general and family medicine 2022; (23(6)):384-392 doi:10.1002/jgf2.572.

    PMID: 36349207
  9. 9

    Transvaginal Ultrasound Accuracy in the Hydrosalpinx Diagnosis: A Systematic Review and Meta-Analysis.

    Delgado-Morell A, Nieto-Tous M, Andrada-Ripollés C, et al.

    Diagnostics (Basel, Switzerland) 2023; (13(5)) doi:10.3390/diagnostics13050948.

    PMID: 36900092
  10. 10

    Development of Hydrosalpinx After Prior Vaginal Hysterectomy and Bilateral Salpingectomy.

    Lai JM, Masten M, Markese A

    Cureus 2024; (16(1)):e52573 doi:10.7759/cureus.52573.

    PMID: 38371103
  11. 11

    Non-neoplastic diseases of the fallopian tube: MR imaging with emphasis on diffusion-weighted imaging.

    Foti PV, Ognibene N, Spadola S, et al.

    Insights into imaging 2016; (7(3)):311-27 doi:10.1007/s13244-016-0484-7.

    PMID: 26992404
  12. 12

    CT differentiation between tubo-ovarian and appendiceal origin of right lower quadrant abscess: CT, clinical, and laboratory correlation.

    Hiller N, Fux T, Finkelstein A, et al.

    Emergency radiology 2016; (23(2)):133-9 doi:10.1007/s10140-015-1372-z.

    PMID: 26719159
  13. 13

    Imaging modalities for the non-invasive diagnosis of endometriosis.

    Nisenblat V, Bossuyt PM, Farquhar C, et al.

    The Cochrane database of systematic reviews 2016; (2()):CD009591 doi:10.1002/14651858.CD009591.pub2.

    PMID: 26919512
  14. 14

    Endometriosis: A Review.

    As-Sanie S, Mackenzie SC, Morrison L, et al.

    JAMA 2025; (334(1)):64-78 doi:10.1001/jama.2025.2975.

    PMID: 40323608
  15. 15

    Transvaginal Ultrasonography for Detection of PID-Related Adhesions: A Case Report.

    Dubey A, Mick I, Marien M, Leonardi M

    Australasian journal of ultrasound in medicine 2026; (29(3)):e70050 doi:10.1002/ajum.70050.

    PMID: 42317530
  16. 16

    Pelvic Inflammatory Disease: Multimodality Imaging Approach with Clinical-Pathologic Correlation.

    Revzin MV, Mathur M, Dave HB, et al.

    Radiographics : a review publication of the Radiological Society of North America, Inc 2016; (36(5)):1579-96 doi:10.1148/rg.2016150202.

    PMID: 27618331
  17. 17

    The Great Mimicker: Variable Presentations of Xanthogranulomatous Salpingo-Oophoritis in a Case Series of Seven Patients From a Rural Tertiary Care Center.

    Rani E, Saloni S, Juneja S

    Cureus 2026; (18(8)):e114481 doi:10.7759/cureus.114481.

    PMID: 42732339
  18. 18

    [Management of tubo-ovarian abscesses and complicated pelvic inflammatory disease: CNGOF and SPILF Pelvic Inflammatory Diseases Guidelines].

    Graesslin O, Verdon R, Raimond E, et al.

    Gynecologie, obstetrique, fertilite & senologie 2019; (47(5)):431-441 doi:10.1016/j.gofs.2019.03.011.

    PMID: 30880246

This page explains diagnostic testing and report terms for chronic salpingo-oophoritis for informational purposes only and does not constitute medical advice. Ask your gynecologist to interpret your results and recommend next steps.

Get notified when new evidence is published on chronic salpingo-oophoritis.

We monitor PubMed for new peer-reviewed studies on this topic and email a short summary when something meaningful changes.