Dorsal Wall Ultrasound
Technique:
Real-time ultrasound examination of the dorsal wall was performed using a
high-frequency linear transducer (7–12 MHz).
Systematic evaluation of the posterior thoraco-lumbar region was carried out
in longitudinal and transverse planes.
Skin, subcutaneous tissue, muscle layers, and underlying soft tissue structures
were assessed.
Clinical indication:
Back swelling
Skin & Subcutaneous Tissue:
Right lateral dorsal wall, involving subcutaneous tissue in a diffuse pattern.
Diffuse, poorly circumscribed hyperechoic fatty proliferation is seen involving the subcutaneous plane, extending over an area measuring approximately 8.5 × 4.2 cm. No discrete encapsulated mass is identified. Minimal or no internal vascularity is noted. No infiltration into deeper structures is seen.
Muscle Layers:
Visualized muscle planes appear normal in bulk and echotexture.
No focal mass, tear, or intramuscular collection is identified.
Fascial Planes:
Fascial layers are intact with no evidence of fluid tracking or disruption.
Soft Tissue:
No focal soft tissue mass, cystic lesion, or abscess is seen.
Vascularity:
No abnormal increased vascularity is noted on Doppler evaluation.
Impression: No evidence of calcification, necrosis, or deep fascial/muscular invasion. Findings are suggestive of Lipomatosis of the dorsal wall.
Recommendation: Clinical correlation is advised. Follow-up imaging may be considered in case of increase in size, pain, or atypical clinical features. Further evaluation with MRI is recommended if any suspicion of deep extension or malignant transformation arises.
Kindly Note:
Limitations / Technical Factors:
Ultrasound evaluation has limitations in assessing deep-seated lesions and
involvement of underlying musculature or bone.
Clinical correlation and further imaging (MRI / CT) may be required
depending on clinical suspicion.
• This report is not valid for medico-legal purposes.
End of Case Study
You have reached the end of this Lipomatosis – Back Lump (Dorsal Wall Ultrasound Case Study).
This evaluation was performed using Ultrasonography (USG), allowing real-time assessment of superficial soft tissue structures.
Content is intended for educational, training, and clinical reference only.
Declaration:
I, R. K. Mouj, declare that the material presented in this case study titled
“Lipomatosis – Dorsal Wall (Back Lump) on Ultrasonography (USG)”
has been prepared solely for educational and academic purposes.
The findings demonstrate diffuse fatty proliferation within the
subcutaneous tissue of the dorsal wall, without a well-defined capsule,
consistent with lipomatosis.
On ultrasound, lipomatosis appears as a poorly circumscribed, diffuse hyperechoic
thickening of subcutaneous fat with preserved internal architecture.
Unlike lipoma, no discrete encapsulated mass is identified.
These lesions are benign and may be associated with metabolic, genetic,
or systemic conditions. Clinical correlation is important for appropriate evaluation.
Ultrasonography is useful for identifying the diffuse nature of the lesion;
however, MRI may be considered in selected cases for better delineation and extent assessment.
These findings are intended for learning and demonstration only.
Definitive diagnosis and management require clinical correlation and appropriate medical consultation.
Author: ____________________
Name: R. K. Mouj [Radio-imaging Technologist]
Domain: Diagnostic Sonography & Soft Tissue Imaging
Modality: Ultrasonography (USG)
Platform: SonoAcademy
Supervisor / Guide: Department Radiologist
Department: Radiology
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