Jun 16
History (HX): Incidental finding on ultrasound exam
Findings:
Low attenuated subcapsular liver mass with peripheral nodular enhancement and filling in on delayed study.
Diagnose (DX): Liver hemangioma
Discussion:
Hemangioma is the most common benign tumor of the liver.
The classic diagnostic findings for hemangioma are as follows:
On unenhanced CT: Hypoattenuation similar to that of vessels
On dynamic contrast CT or MR imaging: Peripheral globular enhancement and a centripetal fill-in pattern with attenuation of enhancing areas identical to that aorta and blood pool.
Jun 16
History (HX): Hirsutism
Findings:
Small 12×10 mm lesion in left adrenal gland
Normal right sided
Diagnose (DX): Adrenal adenoma
Discussion:
Unenhanced CT attenuation value can characterize an adrenal mass as a benign adenoma (adenoma attenuation value is lower than nonadenomas lesion 25H compared with 32H). Adenoma mean diameter is usually lower than nonadenomas. (<1 cm compared with 2/4 cm)
May 14
HX:A 57 man year old with abdominal pain and nausea.
Findings: A large necrotic mass in jejunum with proximal
loope dilatation , omental fat involvement along with lymph
nodes .
Diagnosis: malignant spindle cell tumor .
Discussion: Malignant tumors of small bowel are rare
and accounts for the <2% of total GI malignancy.
Because of the heterogeneous and aggressive nature many
of them present with recurrence and visceral metastasis.
May 14
HX: A 52y man complaining of hematuria and flank pain .
Findings: Large solid mass in right kidney .
The mass is causing distortion of the renal parenchyma ,
collecting system and sinus fat.
Diagnosis: Renal cell carcinoma
Discussion : The most common primary malignant tumors
in adults, 80% of all malignant renal tumors , usually
between 40-60 years of age . Man to woman ratio are 2:1 ,
20-50% of hypernephroma are associated with von hipple –
lindau disease.
These tumors mostly spread by direct extension into the
renal pelvis and the blood stream , thus early spread to the
lungs is expected. Involvement of renal sinus soft tissue is
occurred. Secondary deposits to the bones , liver and
opposite kidney are commonly seen.
Jan 17
HX:A 70 year old man with anemia and right trunk palpable
mass, lower extremity DVT .
Findings: Thick fluid in posterior pararenal space,
heterogeneous enlargement of right psoas muscle.
Diagnosis: Anticoagulant related hematoma.
Discussion: Spontaneous bleeding is a serious complication
that should be promptly recognized and treated.
CT, a simple and safe imaging modality, plays an important
role in the accurate determination of the presence or
absence of an anticoagulant- related bleed , its extent, and
its precise location.
Jan 17
HX:A 56 year old woman , known case of ovarian cancer.
Findings: Soft tissue masses along omentum.
Diagnosis : peritoneal carcinomatosis( omental cake )
Diagnosis: Peritoneal seeding is the most common pathway
for the spread of ovarian cancer.
Because 90% of ovarian cancers are surface epithelial
carcinomas , that tumor cells are able to slough off the
ovary and the peritoneal circulation , thereby seeding
multiple sites.
Jan 17
HX:A 32 year old woman , long period of belly abdominal
pain .
Findings: Thick- wall bowel loops , interlope fluid .
abscess formation in left side of pelvis .
Diagnosis: Chron’s disease in rectosigmoid, involvement of
both fallopian tube, rectovesical fistula.
Discussion: Chron’s disease is a lifelong inflammatory bowel disease that usually is found in illeocecal
region. But it can develop anywhere in the digestive tract from the mouth to the anus. (Above case had rectosigmaid colon and adjacent anatomy involvement with normal illeocecal region on barium study).
Jan 17
HX:A 25 year old woman , painless lump in right lower
abdominal wall .
Findings: Moderate size soft tissue tumor in right transverse / oblique abdominal wall muscles.
Diagnosis : Neurofibroma.
DX: Abdominal wall neurofibroma most common
presenting as inguinal hernia.
Jan 16
HX:A 50 year old woman , known case of calcaneous
melanoma.
Findings: Numerous metastatic lymph nodes in left
paraaortic area and left side of pelvis along with left
femoral vein thrombosis resulting in lower extremity edema.
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