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  • Title: Nodular fasciitis: spontaneous resolution following diagnosis by fine-needle aspiration.
    Author: Stanley MW, Skoog L, Tani EM, Horwitz CA.
    Journal: Diagn Cytopathol; 1993; 9(3):322-4. PubMed ID: 8519200.
    Abstract:
    Nodular fasciitis can be histologically mistaken for a sarcoma. Typical cases are less than 5 cm and enlarge rapidly over days or weeks before diagnosis. The natural history of nodular fasciitis is unknown, since the diagnosis is usually based on excised lesions. Fine-needle aspiration of nodular fasciitis has been described, and features benign-appearing spindle cells (singly and in groups), collagen, and myxoid material. We describe 11 cases in which nonsurgical observation led spontaneously to complete resolution. Our study includes 7 males and 4 females (24 to 73 years of age; median = 42). Lesions were located in the arm (4), thigh (3), temporal area (2), breast (1) and the parotid (1) and ranged from 0.5 to 5.0 cm. (median = 1.5). They had been present for from less than 1 to 4 weeks (median = 2). In 9 cases, spontaneous resolution occurred in from 3 to 8 weeks (median = 4). Two other patients were lost to follow-up for up to 11 months, after which resolution was noted. Small palpable masses in the subcutaneous soft tissues which evolve over a short period of time and show the cytologic features of nodular fasciitis should be managed nonsurgically. If resolution does not occur within a few weeks, surgery can then be performed.
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