Buttocks ; pathology ; Humans ; Muscle Neoplasms ; diagnosis ; Muscle, Skeletal ; pathology ; Synovitis, Pigmented Villonodular ; diagnosis

Adult ; Female ; Heart Neoplasms ; pathology ; Humans ; Lymphoma ; pathology ; Male ; Middle Aged ; Neoplasms, Muscle Tissue ; pathology

Humans ; Nerve Sheath Neoplasms ; pathology ; Nervous System Neoplasms ; pathology ; Smooth Muscle Tumor ; pathology ; Soft Tissue Neoplasms ; classification ; pathology ; Urinary Bladder Neoplasms ; classification ; pathology ; Vascular Neoplasms ; pathology

Aged, 80 and over ; Humans ; Male ; Maxillary Sinus Neoplasms ; pathology ; Neoplasms, Muscle Tissue ; pathology

Inflammatory myofibroblastic tumor （IMT） is a rare mesenchymal soft tissue tumor characterized by borderline or low-grade malignancy. It is rare childhood tumor with an average age of onset of 10 years old. It is even rarer in infants and toddlers, and the etiology and pathogenesis of this tumor are still unclear. The clinical presentation of IMT is non-specific and are related to the location of the tumor. When the tumor compresses adjacent organs, it can cause pain and functional impairment. According to the current literature, IMT is most commonly found in the digestive and respiratory systems, but also occasionally occur in the genitourinary system, head and neck, and limbs. At present, there have been no reports of nasopharyngeal IMT involving nasal cavity of infants and toddlers at home and abroad.This article reports a case of a massive inflammatory myofibroblastic tumor involving the nasal cavity and nasopharynx in an infant. Plasma-assisted minimally invasive surgery was performed through multiple surgical approaches and achieved satisfactory therapeutic results. This case report may provide valuable reference for the treatment of similar diseases.
Humans ; Infant ; Granuloma, Plasma Cell/pathology* ; Nasopharynx/pathology* ; Neoplasms, Muscle Tissue ; Soft Tissue Neoplasms

Hoarseness, associated with a pharyngeal abnormal sensation, intermittent cough, without the symptoms of bloody sputum, dyspnea, fever, fatigue, weight loss and other symptoms. No lymphadenectasis or other abnormal symptoms. Routine tests, just like blood and urine routine, liver and kidney function, blood coagulation routine, ECG, chest radiograph, no abnormal results.
Humans ; Laryngeal Neoplasms ; pathology ; Male ; Middle Aged ; Neoplasms, Muscle Tissue ; pathology

OBJECTIVE: To investigate the clinical feature, diagnostic and therapeutic methods of inflammatory myofibroblastic tumor(IMT). METHOD: One case of IMT was reported and the relevant literatures were reviewed. RESULT: The computed tomography scan showed irregular soft tissue density shade and aggressive bone destruction with unclear boundary. Pathological findings showed variable numbers of inflammatory cells and myofibroblastic spindle cells. Tumor cells were immunoreactive for vimentin and smooth muscle actin, but negative for desmin et al. CONCLUSION IMT of the maxillary sinus is very rare. The diagnosis of IMT base on histopathology and immunohistochemistry. The genesis and development of IMT result from chromosomal translocations that often cause an overexpression of anaplastic lymphoma kinase. IMT are clinical and pathological distinct entities and its biological behavior is still uncertain.
Adult ; Humans ; Male ; Maxillary Sinus Neoplasms ; pathology ; Neoplasms, Muscle Tissue ; pathology

Humans ; Chondrosarcoma, Mesenchymal/pathology* ; Chondrosarcoma/surgery* ; Muscle, Skeletal/pathology* ; Bone Neoplasms/pathology*

The authors report a typical case of tenosynovial giant cell tumor of the right middle finger of a 31-year-old man. Histologically, this tumor is characterized by a discrete proliferation of rounded synovial-like cells accompanied by a variable number of multinucleated giant cells, inflammatory cells, and xanthoma cells. Clinicopathologically, this tumor is a benign lesion that nonetheless possesses a capacity for local recurrence. Local excision with a small cuff of normal tissue is the treatment of choice in this tumor.
Adult ; Case Report ; Fingers* ; Giant Cell Tumors/surgery ; Giant Cell Tumors/pathology* ; Histocytochemistry ; Human ; Male ; Muscle Neoplasms/surgery ; Muscle Neoplasms/pathology* ; Neoplasm Recurrence, Local ; Synovial Membrane/pathology*

Uterine and extrauterine tumors composed of cells featuring endometrial stromal cells often show ovarian sex cord-like structures and smooth muscle differentiation. A few cases of endometrial stromal tumors showing rhabdoid differentiation have been reported. The present case is a 20-year-old woman with endometrial stromal sarcoma that had sex cord-like structures, smooth muscle components and rhabdoid differentiation.
Adult ; Case Report ; Cell Differentiation ; Endometrial Neoplasms/*pathology ; Female ; Human ; Muscle, Smooth/*pathology ; Rhabdoid Tumor/*pathology ; Sarcoma, Endometrial Stromal/*pathology