<![CDATA[Bone and Soft Tissue Neoplasms: Soft Tissue Lesions]]>https://www.bstneoplasms.com/s/soft-tissue-neoplasmshttps://substackcdn.com/image/fetch/$s_!LzdO!,w_256,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6bd471b-f449-4994-a7ca-020df9f523ff_947x947.pngBone and Soft Tissue Neoplasms: Soft Tissue Lesionshttps://www.bstneoplasms.com/s/soft-tissue-neoplasmsSubstackWed, 13 May 2026 13:55:53 GMT<![CDATA[Case 64: The Foggy Pattern of Myositis]]>https://www.bstneoplasms.com/p/case64https://www.bstneoplasms.com/p/case64Mon, 04 May 2026 01:07:26 GMT

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Case:

62-years old lady with inflammatory arthritis and auto-immune hepatitis came with muscle pain

Bilateral asymmetric edema without significant atrophy and fat infiltration
All the limbs and the girdles were involved

What is striking is the foggy pattern.

The video describes the classic foggy pattern and its implications

The Myositis Series

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Index and Table of Contents

Previous Post

]]><![CDATA[Case 63: The Honeycomb Pattern of Myositis]]>https://www.bstneoplasms.com/p/case63https://www.bstneoplasms.com/p/case63Tue, 28 Apr 2026 00:24:57 GMT

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Case:

61-yrs old with recent diagnosis of a myopathy.

Diffuse symmetric involvement of hamstrings and rectus femoris with edema and fat infiltration and atrophy

What is striking is the honeycomb pattern

The video describes the classic honeycomb pattern in this patient’s muscles and the implications and compares with the other patterns - fascial and peripheral/foggy described earlier in previous videos.

Earlier Myositis Videos

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Other Muscle Lesions

Index and Table of Contents

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]]><![CDATA[Case 62: The Symmetric Fascial Edema Pattern of Dermatomyositis]]>https://www.bstneoplasms.com/p/case62https://www.bstneoplasms.com/p/case62Mon, 20 Apr 2026 01:05:15 GMT

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Case:

35-years old man with dermatomyositis and limb pain on treatment came for a baseline myositis protocol MRI, which showed symmetric fascial edema as depicted in the images below.

Symmetric fascial edema thighs and legs - posterior compartment of thigh most involved
Symmetric fascial edema arms, with subtle muscle edema triceps

The video (published earlier as COD 053) discusses the case, the myositis protocol MRI and the various patterns of muscle involvement in different forms of myositis.

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Other Muscle Lesions

Index and Table of Contents

Previous Post

]]><![CDATA[Case 61: Dermatomyositis and the Myositis Protocol MRI]]>https://www.bstneoplasms.com/p/case61https://www.bstneoplasms.com/p/case61Mon, 13 Apr 2026 00:18:44 GMT

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Case:

55-years old diagnosed to have dermatomyositis, referred for a myositis protocol MRI.

Right upper limb - no edema, marked atrophy
Left upper limb - no edema, marked atrophy
Pelvis - mild edema, marked atrophy
Thighs - no edema, marked atrophy

The video (published earlier as COD 021) discusses the case, the myositis protocol MRI and other cases of dermatomyositis.

This site will also include cases of diffuse myositis and myopathies.

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Other Muscle Lesions

Index and Table of Contents

Previous Post

]]><![CDATA[COD 178 - Webspace Tear-Drops and Slugs]]>https://www.bstneoplasms.com/p/cod178https://www.bstneoplasms.com/p/cod178Wed, 25 Feb 2026 13:48:10 GMT

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Case:

37-years old with plantar forefoot pain.

MRI was done.

The video discusses the case, the diagnosis of Morton neuroma, pitfalls, new signs including the “slug” sign and differentials.

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Video

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Index and Table of Contents

Previous Case of the Day Posts

]]><![CDATA[Case of the Day - 091 - 2025 08 26 - How Many Signs of an Intramuscular Schwannoma?]]>https://www.bstneoplasms.com/p/case-of-the-day-091-2025-08-26-howhttps://www.bstneoplasms.com/p/case-of-the-day-091-2025-08-26-howWed, 27 Aug 2025 03:02:47 GMT

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Case:

34-years old with pain along the medial and posterior aspects of the proximal leg with a positive Tinel sign.

MRI shows an intramuscular tumor with signs suggestive of an intramuscular schwannoma. How many signs are needed to be sure? How may exist?

The video goes through the signs and discusses the case

Video

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Index and Table of Contents

Previous Case of the Day Posts

]]><![CDATA[Case 40: A Dark Pelvic Mass]]>https://www.bstneoplasms.com/p/case40https://www.bstneoplasms.com/p/case40Fri, 20 Oct 2023 12:55:49 GMTIndex & Table of Contents

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Case:

This 33-years old had pelvic pain for 4 months.

What is the likely diagnosis?

MRI

The answer is up. Here is the discussion video.

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Previous Posts

Other Cases and Sites

CT Chest Review

https://www.ctchestreview.com/case91/

My New Book on Atmasvasth

Atmasvasth

https://www.atmasvasth.com/book/

]]><![CDATA[Case 30: The Misdiagnosed Labial Hemangioma]]>https://www.bstneoplasms.com/p/case30https://www.bstneoplasms.com/p/case30Thu, 22 Dec 2022 23:45:58 GMT

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Case and Quiz

This 42-years old lady presented with asymmetry of the thighs with a history of a long-standing labial hemangioma.

The MRI of the thighs showed denervation neuropathy of the posterior compartment right thigh muscles and a search proximally showed an osteolytic sacral lesion, which was biopsied and showed an unusual metastatic sarcoma. PET/CT showed liver and lung metastasis.

MRI of the pelvis
MRI of the sacrum
Biopsy from the sacral lesion
PET/CT showing lung and liver lesions
PET/CT showing the labial mass

What is the likely diagnosis?


The answer is up here

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Table of Contents

Bone and Soft Tissue Neoplasms
Index
Primary Bone Tumors Osteogenic Osteoid Osteoma Case 18: 23-years old with right arm pain - osteoid osteoma Osteoblastoma Case 19: 60-years old man with a talar lesion - osteoblastoma Osteosarcoma Case 3: 18-years old with knee pain - distal femur osteosarcoma…
Read more
4 years ago · 1 like · Bhavin Jankharia

Other Sites and Cases

https://www.ctchestreview.com/lecture05/

https://www.ctbiopsy.com/case114/

https://www.atmasvasth.com/pa10/

]]><![CDATA[Case 23: An Incidental Posterior Mediastinal Mass]]>https://www.bstneoplasms.com/p/case23https://www.bstneoplasms.com/p/case23Wed, 20 Jul 2022 00:12:27 GMTThe Updated ToC
Bone and Soft Tissue Neoplasms
Index
Primary Bone Tumors Osteogenic Osteoid Osteoma Case 18: 23-years old with right arm pain - osteoid osteoma Osteoblastoma Case 19: 60-years old man with a talar lesion - osteoblastoma Osteosarcoma Case 3: 18-years old with knee pain - distal femur osteosarcoma…
Read more
4 years ago · Bhavin Jankharia

To received a quiz the moment it’s up

Case & Quiz

A 39-years old was found to have a mass in the chest on a CT chest done for COVID-19.

CT scan
MRI
Histopath

What is the likely diagnosis?

  1. Paraganglioma

  2. Schwannoma

  3. Abscess

  4. Hydatid cyst

The answer is here

Please share if you think others may benefit

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Other Posts

https://www.ctchestreview.com/case62/

https://www.ctbiopsy.com/case97/

https://www.mricardiac.com/case49/

https://www.atmasvasth.com/reading/

]]><![CDATA[Case 21: A Growing Thigh Lesion]]>https://www.bstneoplasms.com/p/case21https://www.bstneoplasms.com/p/case21Sat, 18 Jun 2022 13:35:03 GMTThe Updated ToC

Bone and Soft Tissue Neoplasms
Index
Primary Bone Tumors Osteogenic Osteoid Osteoma Case 18: 23-years old with right arm pain - osteoid osteoma Osteoblastoma Case 19: 60-years old man with a talar lesion - osteoblastoma Osteosarcoma Case 3: 18-years old with knee pain - distal femur osteosarcoma…
Read more
4 years ago · Bhavin Jankharia

To subscribe - it’s all free

A 73-years old man came with a slowly growing mass in the left mid-thigh, following an episode of trauma a year ago.

MRI
DCE
Post-Contrast MRI
Histopath

What is the likely diagnosis?

  1. Schwannoma

  2. Synovial sarcoma

  3. Chronic hematoma

  4. Myxofibrosarcoma

The answer is here

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Last Week’s

Bone and Soft Tissue Neoplasms
Case 20: A Scary Femur
The updated Table of Contents…
Read more
4 years ago · 2 likes · Bhavin Jankharia

Other Sites

https://www.ctchestreview.com/case59/

https://www.ctbiopsy.com/case94/

https://www.atmasvasth.com/supplements01/

]]><![CDATA[Case 13: A Lucent Elbow]]>https://www.bstneoplasms.com/p/case13https://www.bstneoplasms.com/p/case13Tue, 22 Mar 2022 16:03:41 GMT

To get an email each time a new case is up

This 45-years old presented with a painless swelling over the elbow

X-ray

What do you think is the diagnosis?

  1. Large bursa

  2. Lipoma

  3. Abscess

  4. Schwannoma

The answer is here.

If you think there are others who may benefit, please share.

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New Week’s Quiz

Bone and Soft Tissue Neoplasms
Case 14: An Expanded Sacrum
To get a new case by email, the moment it is up A 60-years old man presented with tingling numbness in both lower limbs…
Read more
4 years ago · Bhavin Jankharia

Last Week’s Answer

Bone and Soft Tissue Neoplasms
Case 12: Typical Distal Femur Lesion
If you would like to know immediately, each time a new case is up via email, please subscribe. A 31-years old presented with knee pain. The X-rays (simulated from the CT scan) showed a distal femur lesion. This was followed by MRI and then a biopsy…
Read more
4 years ago · Bhavin Jankharia

Other Sites

https://www.ctchestreview.com/case49/

https://www.ctbiopsy.com/sijoint04/

https://www.atmasvasth.com/loneliness/

]]><![CDATA[Case 10: Incidentally Detected Chest Wall Mass]]>https://www.bstneoplasms.com/p/case10https://www.bstneoplasms.com/p/case10Sun, 27 Feb 2022 13:44:42 GMT

If you would like to receive the quiz as soon as it is published, please subscribe here

A 50-years old man was found to have an incidentally detected chest wall on a CT scan of the chest.

An MRI was done followed by a biopsy

MRI
MRI
MRI
Histopath

What is the most likely diagnosis?

  1. Elastofibroma

  2. Sarcoma

  3. Desmond-like fibromatosis

  4. Venous vascular malformation

The answer is here.

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Last Week’s Quiz and Answer

Bone and Soft Tissue Neoplasms
Case 9: Leg Bump
You can subscribe here, if you would like to get an intimation each time a new case is up. A 3-year old presented with a swelling on the middle third of the leg that was slowly growing with mild pain. There was no fever…
Read more
4 years ago · Bhavin Jankharia

Other Sites and Cases

https://www.ctbiopsy.com/angulation01/

https://www.atmasvasth.com/cervix/

https://www.ctchestreview.com/smoking02/

]]><![CDATA[Case 7: A Growing Thigh]]>https://www.bstneoplasms.com/p/case7https://www.bstneoplasms.com/p/case7Tue, 08 Feb 2022 01:36:17 GMTA 52-years old lady presented with an increase in the size of the right thigh for a year. Local doctors had given some ointments, but when it finally started paining, the family met an orthopedic surgeon.

X-rays and MRI were done. Following the MRI, a biopsy was done.

Radiographs
MRI
Histopath

What is the likely diagnosis?

  1. Chronic abscess

  2. Chronic hematoma

  3. Sarcoma

  4. Cystic schwannoma

To see the answer and the discussion, you can either see this video or the one above. The video describes the approach to a soft tissue mass in short.

To subscribe

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Last Week’s Quiz

Bone and Soft Tissue Neoplasms
Case 6: Painful Shoulder on Anti-Tuberculous Treatment
A 22-years old woman presented with a painful shoulder for 3 months. The radiographs and MRI suggested an aggressive lesion, for which she was put on anti-tuberculous treatment. When she did not improve, all the investigations were repeated. A biopsy was also then done…
Read more
4 years ago · Bhavin Jankharia

Other Cases

https://www.ctchestreview.com/case45/

https://www.ctbiopsy.com/headneck03/

https://www.mricardiac.com/case27/

https://www.atmasvasth.com/temperature01/

]]><![CDATA[Case 4: Intra-Capsular Popliteal Fossa Mass]]>https://www.bstneoplasms.com/p/case4https://www.bstneoplasms.com/p/case4Sun, 16 Jan 2022 06:01:25 GMTThis 28-years old presented with swelling in the popliteal fossa and the inability to flex the knee fully with pain.

Plain radiograph - lateral of the knee
Sagittal PDFS MRI of the knee
Sagittal 3D PDW MRI of the knee
Histopath

What is the most likely diagnosis?

  1. Synvovial sarcoma

  2. Tenosynovial giant cell tumor

  3. Hemangioma

  4. Desmoid type fibromatosis

The answer

Last week’s quiz was an aggressive bone forming tumor in the distal femur of an 18-years old. You can see it here.

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