All of the following soft tissue sarcoma has propensity for lymphatic spread except
**Core Concept**
Soft tissue sarcomas (STS) are a heterogeneous group of malignant tumors originating from mesenchymal cells, including connective tissue, fat, and blood vessels. Lymphatic spread is a common mode of metastasis for some STS subtypes, while others are more prone to hematogenous dissemination.
**Why the Correct Answer is Right**
The majority of STS subtypes exhibit hematogenous spread to the lungs and other organs, whereas lymphatic spread is less common. However, some STS subtypes, like epithelioid sarcoma, clear cell sarcoma, and rhabdomyosarcoma, have a propensity for lymphatic spread. This is due to the tumor cells' ability to invade and utilize the lymphatic vessels for metastasis.
**Why Each Wrong Option is Incorrect**
**Option A:** Epithelioid sarcoma is a rare type of STS that is known to spread via lymphatic vessels, making it an incorrect choice.
**Option B:** Clear cell sarcoma is another STS subtype that exhibits lymphatic spread, ruling it out as the correct answer.
**Option C:** Rhabdomyosarcoma, particularly the embryonal and alveolar subtypes, also have a tendency for lymphatic spread, eliminating it as an option.
**Clinical Pearl / High-Yield Fact**
When evaluating STS, it's essential to consider the specific histological subtype and its propensity for lymphatic or hematogenous spread to guide appropriate staging and treatment strategies.
**Correct Answer: D**