Fibromatosis of the temporal region is extremely rare. It has also been referred to as extra-abdominal desmoid which orininates from muscle or fascia and it is a highly recurrent tumor. This paper presents a case of temporal muscle fibromatosis and a brief review of the pertinent literature.
Female ; Fibroma/pathology* ; Human ; Masticatory Muscles*/pathology ; Middle Age ; Muscular Diseases/pathology* ; Temporal Muscle*/pathology

Aged ; Humans ; Male ; Neoplasms, Muscle Tissue ; Skull Neoplasms ; Temporal Bone ; pathology

OBJECTIVETo study the effects of repeated + Gz forces on masticatory muscles.

METHODS48 male Wistar rats were randomly divided into 4 groups. Group A was normally fed. Group B was only fixed with rat-kept devices for 5 minutes. Group C was borne + 1 Gz for 5 minutes. Group D was repeatedly exposed + 10 Gz (each for 30 s, onset rate about 0.5 G/s, 5 times/d with + 1 Gz 1 minute intervals, 4 d/wk, 3 weeks in total). The histological changes of the masseter, temporal and lateral pterygoid muscles were observed.

RESULTSNo abnormal changes were observed in Group A, B and C. But pathological changes could be found in group D. The wrench and deformation of muscular fibers, the dissolution of partial myofibril, the swelling of mitochondria, the reduce of hepatin from the masseter and lateral pterygoid muscles could be found.

CONCLUSIONSRepeated + Gz stresses could induce the damage of masticatory muscles in different degrees.

Animals ; Hypergravity ; Male ; Masseter Muscle ; pathology ; ultrastructure ; Masticatory Muscles ; pathology ; ultrastructure ; Microscopy, Electron ; Pterygoid Muscles ; pathology ; ultrastructure ; Rats ; Rats, Wistar ; Temporal Muscle ; pathology ; ultrastructure ; Time Factors

OBJECTIVETo evaluate the clinical effect of mandibular osteomuscular flap pedicled with temporalis to repair maxillary defect.

METHODSFrom March 2008 to May 2010, ten cases of maxillary defects resulted from malignant tumor resection were treated with mandibular osteomuscular flap pedicled with temporalis. Ten cases of malignant tumor included six cases of Squamous cell carcinoma,one case of duct carcinoma, osteosarcoma, chondrosarcoma and malignant melanoma. One case was repaired by mandibular osteomuscular flap only, nine cases were repaired by mandibular osteomuscular flaps combined with other soft tissue flaps.

RESULTSAll the 10 mandibular osteomuscular flaps survived completely with no complication. The patients were followed up for 12 to 36 months, with an average of 18 months. Satisfactory appearance and complete functional restoration were achieved except for one case of chondrosarcoma recurrence.

CONCLUSIONSThe mandibular osteomuscular flap pedicled with temporalis is safe and easily performed with less complication. It is an ideal method for repairing the maxillary defect.

Aged ; Female ; Humans ; Male ; Mandible ; transplantation ; Maxilla ; pathology ; surgery ; Middle Aged ; Reconstructive Surgical Procedures ; methods ; Skin Transplantation ; Surgical Flaps ; Temporal Muscle ; transplantation ; Wound Healing

Adult ; Antigens, Neoplasm ; Diagnosis, Differential ; Female ; Follow-Up Studies ; Humans ; Melanoma-Specific Antigens ; Neoplasm Proteins ; metabolism ; Neoplasm Recurrence, Local ; Neurofibroma ; metabolism ; pathology ; surgery ; Reoperation ; S100 Proteins ; metabolism ; Sarcoma, Clear Cell ; metabolism ; pathology ; surgery ; Soft Tissue Neoplasms ; metabolism ; pathology ; surgery ; Temporal Muscle