Soft tissue mass causes

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ammu Susheela, M.D. [2]

Overview

Causes by Organ System

Cardiovascular
Chemical/Poisoning	No underlying causes
Dental	No underlying causes
Dermatologic	No underlying causes
Drug Side Effect	Phenytoin, Sulfonamides, Iodide, Propylthiouracil
Ear Nose Throat	Sialolithiasis, Salivary cysts
Endocrine	Multinodular goiter, Grave's Disease, Thyroiditis, Thyroid adenoma, Hashimoto's thyroiditis, Colloid goiter, Parathyroid adenoma, Parathyroid cysts,
Environmental	No underlying causes
Gastroenterologic	Zenker diverticulum
Genetic	Branchial cleft cyst, Thyroglossal duct cyst, Laryngocele, Ranula, Thymic cyst, Cystic hygromas, Branchial cleft fistulas, Congenital torticollis, Encephalocoeles, Lymphangioma, Fibromatosis colli, Cervical rib, Pneumatocele
Hematologic	Hemangiomas
Iatrogenic	No underlying causes
Infectious Disease	Hydatid cysts, Infectious mononucleosis, Toxoplasmosis, Cat-scratch disease, Actinomycosis, Tularemia, Brucellosis, Mycobacterial infections, HIV associated lymphadenopathy, Toxoplasma gondii, Kikuchi disease, Streptococcal lymphadenitis, Staphylococcal lymphadenitis, Cytomegalovirus lymphadenitis, Herpes simplex virus lymphadenitis, Coccidiomycosis, Sialadenitis, Choriomeningitis, Mumps, Adenovirus infection, Coxsackie, Influenza, Parainfluenza, Haemophilus influenzae, Osteomyelitis of sternum, Sternal tuberculosis, Parotiditis, Histoplasmosis, Bacterial pharyngitis, Cold abscess
Musculoskeletal/Orthopedic	No underlying causes
Neurologic	No underlying causes
Nutritional/Metabolic	Castleman's disease
Obstetric/Gynecologic	No underlying causes
Oncologic	No underlying causes Benign Chondroma, Lipoma, Paraganglioma, Osteoblastoma, Pleomorphic adenoma, Monomorphic adenoma, Schwannoma, Fibroma, Neuroma, Myositis ossificans Malignant Lipoblastoma, Acinic cell carcinoma, Chloroma, Multiple endocrine neoplasia type 2a, Multiple endocrine neoplasia type 2b, Multiple endocrine neoplasia type 1, Follicular thyroid cancer, Papillary thyroid cancer, Medullary thyroid cancer, Anaplastic thyroid cancer, Lymphoma, Salivary gland tumor, Hurthle cell carcinoma, Parathyroid carcinoma, Teratoma, Carotid body tumor, Glomus jugulare tumor, Glomus vagale tumor, Warthin's tumor, Lymphoepithelioma, Oncocytoma, Mucoepidermoid carcinoma, Adenoid cystic carcinoma, Salivary duct carcinoma, Squamous cell carcinoma, Carcinoma ex pleomorphic adenoma, Lymphoma, Neuroma, Sarcoma, Haemangioma, Plasma cell tumors, Leukemia, Lymphoma, Waldenström's macroglobulinemia, Rhabdomyosarcoma, Hodgkin disease, Non-Hodgkin lymphoma, Leukemia, Oral cancer, Schwannoma, Nasopharyngeal carcinoma Metastatic neck tumor Gastrointestinal cancer, Breast cancer, Lung cancer, Genitourinary tract cancer, Metastasis of unknown primary
Ophthalmologic	No underlying causes
Overdose/Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	No underlying causes
Renal/Electrolyte	No underlying causes
Rheumatology/Immunology/Allergy	Sarcoidosis, Castleman disease, Rosai-Dorfman disease, Kawasaki disease, Sjögren’s syndrome
Sexual	No underlying causes
Trauma	Hematoma
Urologic	No underlying causes
Miscellaneous	Kikuchi disease, Aneurysm, Hematoma, AV fistula