Fine‐needle aspiration of adult rhabdomyoma: A case report with review of the literature

Abstract

The cytologic features of adult rhabdomyoma, a rare benign tumor of skeletal muscle origin, have been infrequently reported in the literature. We present here a case of a rhabdomyoma involving the floor of the mouth of a 78-year-old man initially diagnosed by fine-needle aspiration cytology. Cytologic features seen on Papanicolaou-stained smear preparation included cohesive clusters of skeletal muscle cells having abundant eosinophilic cytoplasm and often peripherally located nuclei. Although cross-striations and elongated intracytoplasmic inclusions were not identified in the smears, they were noted in the cell block preparation of the aspirated specimen and in the touch preparation and histologic sections of the surgically resected specimen. The cytologic differential diagnosis of this tumor is discussed.

Cytology of a giant adult‐type rhabdomyoma of the tongue

“…The cytologic appearance of adult RM has been described in several case reports 4–19. Our findings are mostly parallel with those of previous literature, including basic cytomorphologic features as polygonal cells with abundant eosinophilic granular cytoplasm, small uniform peripherally located nuclei, and indistinct cell borders.…”

Cytologic findings of an adult rhabdomyoma in the parapharyngeal space: A report of a case and review of the literature

“…Adult rhabdomyomas are rare, benign mesenchymal tumors of skeletal muscle origin which usually present as a solitary mass in the head and neck region. To date, there are very few case reports of rhabdomyoma diagnosed based on cytology (Table ) . In a review of the literature, the most common location is the oropharyngeal area with only 1 case located in the parapharyngeal region .…”

“…(Table 1). [4][5][6][7][8][9][10] In a review of the literature, the most common location is the oropharyngeal area with only 1 case located in the parapharyngeal region. 10 There is a male predilection with an age range of 32-69 (average age 61).…”

Intraoral Adult Rhabdomyoma: A Case Report

“…The most commonly affected site is the neck and other sites include the oral cavity (base of the tongue and floor of mouth), pharynx, and larynx [ 6 , 10 ]. A review of the literature suggests that these tumors are most frequently found in muscles derived from the pharyngeal arches [ 11 ].…”