Articles
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29 results found
Article
Venetian blind appearance (uterus)
The Venetian blind (a.k.a. rain shower 2) appearance is a sonographic finding that is typically associated with adenomyosis but can also occur in uterine fibroids. The Venetian blind appearance associated with adenomyosis is typically "thin" whereas when associated with uterine fibroids, there a...
Article
Sliding sign
The sliding sign is a dynamic sonographic sign performed during transvaginal ultrasound (TVS) of women with suspected pelvic endometriosis. The loss of the normal sliding sign indicates pouch of Douglas (POD) obliteration due to adhesions and is suggestive of deep infiltrating endometriosis (DIE...
Article
Cloverleaf sign (deep infiltrating endometriosis)
The cloverleaf sign is an MRI sign of deep infiltrating endometriosis described in one case series 1. It is detectable on T2W sequences in sagittal, coronal, and axial planes when at least three organs (uterus, ovaries, rectum, bowel loops, etc.) are brought closer by constrictive adhesions and ...
Article
Floating balls sign
The floating balls sign refers to the appearance of multiple mobile globules/spherules of solid, usually fatty, tissue within an adnexal cyst. It is pathognomonic for ovarian mature cystic teratoma 1,2.
Terminology
Alternative names include the meatballs 3, truffle sign 4, and boba sign 13.
...
Article
Feeding artery sign (endometrial polyp)
Feeding artery sign (a.k.a. pedicle artery sign) refers to the presence of a single feeding artery to endometrial lesion using color/power Doppler on ultrasonography. It is often seen in endometrial polyps 1. The feeding vessel indicates the stalk attachment of the polyp to the uterus.
Endometr...
Article
String of pearls sign (disambiguation)
String of pearls sign can refer to:
string of pearls sign on an abdominal radiograph of fluid-filled dilated small bowel loops
string of pearls sign on brain MRI in deep border zone infarction
string of pearls sign on brain MRI in Susac syndrome
string of pearls sign on ultrasound in polycys...
Article
Whirlpool sign (ovarian torsion)
The whirlpool sign or whirl sign of ovarian torsion is characterized by the appearance of a twisted ovarian pedicle, which can be seen on ultrasound, CT, and MRI 1,2.
Terminology
The term whirlpool sign is used in other contexts: see whirlpool sign (disambiguation).
Radiographic features
It...
Article
Whirlpool sign (mesentery)
The whirlpool sign of the mesentery, also known as the whirl sign, is seen when the bowel rotates around its mesentery leading to whirls of the mesenteric vessels.
Terminology
The term whirlpool sign is used in other contexts: see whirlpool sign (disambiguation).
Radiographic features
It is...
Article
Pyrexia
Pyrexia (or fever) is a clinical sign, indicated by an abnormally elevated core body temperature, which is defined by several medical societies as ≥38.3°C (≥≈101°F). The temperature elevation may be persistent or episodic. If the body temperature is greater than 41.5°C - a rare phenomenon - it i...
Article
Kissing ovaries sign
The kissing ovaries sign refers to the appearance seen when both ovaries are located in close proximity or are touching each other in the pouch of Douglas, usually due to pelvic adhesions, and may be seen on ultrasound, CT or MRI.
This sign is most frequently associated with the severe form of ...
Article
T2 dark spot sign (endometrioma)
T2 dark spot sign is an MRI appearance of endometriomas seen as a result of chronic hemorrhage. The sign is useful in differentiating a solitary endometrioma from a functional hemorrhagic ovarian cyst, as both might show high T1 signal with T2 shading.
The T2 dark spot, described in the sign, ...
Article
Follicular ring sign
The follicular ring sign is considered as a characteristic sonographic sign for early diagnosis of ovarian torsion 1. It is defined as a prominent (1-2 mm thick) hyperechoic margin seen concentrically around the antral follicles of the torsed ovary, which are usually small (3‐7 mm in diameter) a...
Article
Mushroom cap sign (endometriosis)
The mushroom cap sign is one of the important signs of deep rectosigmoid endometriosis seen on T2 weighted MRI sequence. It indicates the submucosal involvement in the rectosigmoid colon. The hypertrophic muscularis propria appears as heterogeneous low signal intensity surrounded by the high sig...
Article
Dot dash pattern (ovarian dermoid cyst)
The dot-dash pattern (dermoid mesh) is one of the characteristic sonographic appearances of an ovarian dermoid cyst. It refers to the short and long echogenic lines which are often seen within a dermoid cyst and are due to the presence of hair.
Article
Shading sign (endometrioma)
Shading sign is an MRI finding typically seen in an endometrioma. It may also be seen with some endometrioid tumors (e.g. endometrioid carcinoma of the ovary) and uncommonly other blood-containing lesions (e.g. hemorrhagic corpus luteum cysts).
The sign is seen on T2-weighted sequences of lesio...
Article
Tubal ring sign
The tubal ring sign, also referred to as a bagel sign or blob sign, is one of the ultrasound signs of a tubal ectopic pregnancy. It comprises an echogenic ring that surrounds an unruptured ectopic pregnancy. It is said to have a 95% positive predictive value (PPV) for ectopic pregnancy.
Differe...
Article
Beads on a string sign (chronic salpingitis)
The beads on a string sign is used to refer to the classic ultrasound morphologic changes of the fallopian tubes as a result of chronic salpingitis.
Terminology
The "string" alludes to the notably thin salpingeal wall, while the hyperechoic mural nodules constitute the "beads" 1.
Pathology...
Article
Cogwheel sign
The cogwheel sign refers to the pelvic imaging appearance of dilated loops of fallopian tube seen in cross-section. It represents infolding projections (sometimes looking like nodules) into the fallopian tube lumen which are likened to that of a cogwheel. The sign is typically described on ultra...
Article
Sea anemone sign
The sea anemone sign is a unique (but not wholly exclusive) appearance seen in ovarian serous surface papillary borderline tumors (SSPBT). It refers to its surface stroma frequently branches into exophytic papillary stalks, macroscopically 1.
Radiographic features
On cross-sectional imaging, p...
Article
Ring of fire sign (adnexa)
The ring of fire sign, also known as ring of vascularity, signifies a hypervascular lesion with peripheral vascularity on color or pulsed Doppler examination of the adnexa due to low impedance high diastolic flow 1.
This sign can be seen in:
corpus luteum cyst (more commonly)
ectopic pregnancy
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