What is Rhabdomyoma?

Rhabdomyoma
Rhabdomyoma. (a) Low power view of the rhabdomyoma (left) with adjacent hypercellular parathyroid (right). (b) Normal striated muscle intertwined with tumor cells. (c) High power view of rhabdomyoma; notice the eosinophilic granular cytoplasm with small eccentrically and centrally placed nuclei. Much of the cytoplasm is retracted from the cell membrane. (Hematoxylin-eosin, original magnification ×40 (a), original magnification ×100 (b), and original magnification ×400 (c).)A rare soft tissue tumor masquerading as a parathyroid adenoma in a patient with birt-hogg-dubé syndrome and multiple cervical endocrinopathies. Mikesell KV, Kulaylat AN, Donaldson KJ, Saunders BD, Crist HS - Case reports in pathology (2014). Not Altered. CC.

Rhabdomyoma is a benign tumor of striated muscle.

What is the Pathology of Rhabdomyoma?

The pathology of rhabdomyoma is:

-Etiology: The cause of rhabdomyoma is genetic modification during the development of striated muscle.

-Genes involved: TSC1, TSC2.

-Pathogenesis: The sequence of events that lead to rhabdomyoma involves mutations in the TSC1 and TSC2 genes.

-Morphology: The morphology associated with rhabdomyoma shows the presence of a mixture of spindle-shaped cells with indistinct cytoplasm and muscle fibers, which resemble striated muscle tissue.

-Histology: The histology associated with rhabdomyoma shows well-circumscribed, not encapsulated, sheets of large, well-differentiated skeletal muscle cells.

How does Rhabdomyoma Present?

Patients with rhabdomyoma typically affect males present at the age range of over 60 years. The symptoms, features, and clinical findings associated with rhabdomyoma include mass in the region of the neck, hoarseness, difficulty breathing, difficulty swallowing, or a combination.

How is Rhabdomyoma Diagnosed?

Rhabdomyoma is diagnosed using echocardiography.

How is Rhabdomyoma Treated?

Rhabdomyoma is treated with excision. Excision is curative but may recur if incompletely excised.

What is the Prognosis of Rhabdomyoma?

The prognosis of rhabdomyoma is good if there is no complication.