Dermatofibrosarcoma Protuberans Back Lump (Dorsal Wall Ultrasound)

Dermatofibrosarcoma Protuberans – Back Lump (Dorsal Wall Ultrasound)

Dorsal wll Ultrasound Case Study Case Study No: R-26

---

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 / Pain / Palpable dorsal wall lump / Suspected soft tissue lesion.

---

Location: A poorly defined soft tissue lesion is noted in the right lateral dorsal wall involving the dermis and subcutaneous tissue. Soft Tissue Lesion: A poorly defined hypoechoic lesion is seen measuring approximately 4.5 × 2.2 cm. The lesion demonstrates extension from the dermis into the subcutaneous tissue with irregular margins. Internal echotexture appears relatively homogeneous. Muscle / Fascial Planes: No definite deep muscular invasion is evident on sonographic evaluation. Adjacent fascial planes appear maintained. Calcification / Necrosis: No obvious calcification or necrotic component is identified. Vascularity: Mild to moderate internal vascularity is noted on Doppler evaluation.

---

Impression: Poorly defined hypoechoic soft tissue lesion involving the dermis and subcutaneous tissue of the right lateral dorsal wall with mild to moderate internal vascularity. Features are suggestive of dermatofibrosarcoma protuberans (DFSP).

Recommendation: Further evaluation with MRI is recommended for assessment of lesion depth and extent. Histopathological confirmation is mandatory. Wide local excision with oncological consultation is advised.

---

Kindly Note:

Limitations / Technical Factors:
Ultrasound evaluation may be limited in assessing microscopic spread and complete depth of infiltrative soft tissue lesions.
MRI correlation and histopathological evaluation are essential for definitive diagnosis and surgical planning.
• This report is not valid for medico-legal purposes.