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An Pediatr (Barc) 2021 Apr 21. Epub 2021 Apr 21.

Servicio de Pediatría, Unidad de Endocrinología Infantil, Hospital Universitario Son Espases, Palma de Mallorca, Islas Baleares, España.

Dermatol Online J 2021 Feb 15;27(2). Epub 2021 Feb 15.

San Diego Family Dermatology, National City, CA Touro University California College of Osteopathic Medicine, Vallejo, CA.

Basal cell carcinoma (BCC) can be a component of a collision tumor in which the skin cancer is present at the same cutaneous site as either a benign tumor or a malignant neoplasm. However, BCC can also concurrently occur at the same skin location as a non-neoplastic cutaneous condition. These include autoimmune diseases (vitiligo), cutaneous disorders (Darier disease), dermal conditions (granuloma faciale), dermal depositions (amyloid, calcinosis cutis, cutaneous focal mucinosis, osteoma cutis, and tattoo), dermatitis, miscellaneous conditions (rhinophyma, sarcoidal reaction, and varicose veins), scars, surgical sites, systemic diseases (sarcoidosis), systemic infections (leischmaniasis, leprosy and lupus vulgaris), and ulcers. Read More

J Clin Aesthet Dermatol 2020 Nov 1;13(11):28-31. Epub 2020 Nov 1.

Drs. Niebel, Poortinga, and Wenzel are with the Department of Dermatology and Allergy, University Hospital Bonn at Bonn University in Bonn, Germany.

The development of calcium salt deposits in the skin can occur in the presence or absence of membranous ossification and are categorized into osteoma cutis (i.e., cutaneous osteoma) and calcinosis cutis. Read More

Indian Dermatol Online J 2020 Jul-Aug;11(4):604-606. Epub 2020 Jul 13.

Department of Skin and V.D., S.C.B.M.C.H., Cuttack, Odisha, India.

Progressive osseous heteroplasia (POH) is a rare genetic condition of progressive extraskeletal bone formation. POH is clinically suspected by cutaneous ossification, usually presenting in early life, that involves subcutaneous and then subsequently deep connective tissues, including muscle and fascia. We report a case of POH in a 3-year-old child with multiple nontender subcutaneous nodules which, on radiology and histopathology, showed intracutaneous bone formation. Read More

J Dtsch Dermatol Ges 2020 09 18;18(9):1046-1049. Epub 2020 Jun 18.

Unidad de Dermatología Médico-Quirúrgica y Venereología, Hospital Universitario San Cecilio, Granada, Spain.

Niger J Clin Pract 2020 Jun;23(6):759-763

Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkey.

Objective: The aim of this study was to detect the prevalence of soft tissue calcifications in the head and neck using cone beam computed tomography (CBCT) and to determine their clinical importance.

Subjects And Methods: Soft tissue calcifications in the head and neck region were retrospectively evaluated in 1557 CBCT images obtained between 2013 and 2015. The findings were categorized as follows: tonsillolith (calcified tonsil), carotid artery calcification (CAC), sialolith (salivary stone), calcified triticeous cartilage (CTC), calcified lymph node (CLN), rhinolith, antrolith, calcification of the superior cornu of the thyroid cartilage (CSCTC), calcified stylohyoid ligaments (CSL), myositis ossifican, osteoma cutis, and intracranial calcification. Read More

J Cutan Pathol 2020 Aug 7;47(8):776-777. Epub 2020 May 7.

Department of Dermatology, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA.

An Bras Dermatol 2020 May - Jun;95(3):351-354. Epub 2020 Mar 19.

Service of Dermatology Surgery, Fundação de Dermatologia Tropical e Venereologia Alfredo da Matta, Manaus, AM, Brazil.

Secondary osteoma cutis is a phenomenon that may occur in several conditions. When it occurs in a melanocytic nevus it is named osteonevus of Nanta, an event considered uncommon and characterized by the presence of bone formation adjacent or interposed with melanocytic cells. There are reports of its occurrence in various melanocytic lesions, being more frequently associated with intradermal nevus. Read More

J Vet Med Sci 2020 May 2;82(5):536-540. Epub 2020 Apr 2.

Avian Pathology Laboratory, Department of Animal Health, School of Veterinary Medicine, Universidad Nacional de Colombia, Sede Bogotá, Poultry Research Building, Bogotá DC, Carrera 45 #26-85, Colombia.

An osteoma is an infrequent tumor documented in avian species. An adult female Peach-Faced Lovebird (Agapornis roseicollis) with a history of previous trauma was examined due to the presence of bilateral hard and yellowish-white masses in the radio-cubital humerus junction. Histopathological dermal examination revealed a non-neoplastic process of mesenchymal origin, characterized by the formation of well-differentiated trabecular bone, multiple areas of medullary bone and loose connective tissue and coagulation of the necrosis foci. Read More

Cureus 2020 Feb 11;12(2):e6955. Epub 2020 Feb 11.

Dermatology/Dermatopathology, Compass Dermatopathology, San Diego, USA.

Cutaneous tender tumors manifest as painful dermal or subcutaneous masses. Acronyms, a memory aid created from the initial letters of other words, can be used to assist in recalling a list of conditions. We report the case of a man who presented with a painful lesion on his leg; 15 years earlier, hot solder had embedded beneath his skin at that location. Read More

SAGE Open Med Case Rep 2020 4;8:2050313X20910562. Epub 2020 Mar 4.

Division of Dermatology, McGill University Health Centre, Montreal, QC, Canada.

Facial multiple miliary osteoma cutis is a variant of osteoma cutis usually occurring in women with a previous history of acne vulgaris. Successful ablative laser treatment has been reported using both CO2 and Er:YAG lasers among other invasive treatment modalities, like surgical removal. We report a patient with biopsy-proven facial multiple miliary osteoma cutis responding to non-ablative Q-switched Nd:YAG laser therapy. Read More

Niger J Clin Pract 2020 Mar;23(3):329-336

Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ataturk University, Zip 25340, Erzurum, Turkey.

Objectives: The aim of this study is to determine the type, frequency, and location of incidental findings in the maxillofacial region in patients undergoing cone beam computed tomography (CBCT) scan for implant treatment..

Methods: In this study, 300 patients who underwent CBCT imaging for implant treatment planning were evaluated retrospectively. Read More

World J Clin Cases 2020 Feb;8(3):587-593

Department of Genetics and Metabolism, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, Zhejiang Province, China.

Background: Pseudohypoparathyroidism type Ia (PHP Ia) is a rare hereditary syndrome, and patients with early PHP Ia are generally not diagnosed based on the presentation of cutaneous nodules as the main clinical feature. Here, we describe a Chinese boy with PHP Ia in whom the main clinical feature was cutaneous nodules, and the patient exhibited a novel mutation.

Case Summary: A 5-year-old boy presented with a 5-year history of cutaneous nodules scattered over his entire body. Read More

Ann Dermatol Venereol 2020 Apr 18;147(4):313-315. Epub 2020 Feb 18.

Dermatology department, Saint-Louis hospital, AP-HP, 75010 Paris, France.

Am J Dermatopathol 2020 Jun;42(6):e72-e75

Department of Pathology, Anatomy, and Laboratory Medicine, West Virginia University, Morgantown, WV.

Primary osteoma cutis is a rare condition belonging to a spectrum of related genetic disorders, including progressive osseous heteroplasia, plate-like osteoma cutis, and Albright hereditary osteodystrophy, which share identical histologies with cutaneous intramembranous ossification and mutations in GNAS. We report a case of a 15-week-old girl who presented with an enlarging, indurated subcutaneous lesion on her right flank. CT scan showed an extensive subcutaneous sheet of calcification. Read More

Eur J Dermatol 2019 12;29(6):674-675

Department of Dermatology, Hôpital Edouard Herriot, Lyon, France.

Ophthalmic Plast Reconstr Surg 2020 Mar/Apr;36(2):e44-e46

Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia, U.S.A.

Basal cell carcinoma accounts for 90% of malignant tumors of the eyelid. Basal cell carcinoma has been reported to rarely occur in conjunction with osteoma cutis or bone formation in the skin. The mechanism of this secondary osteoma cutis has yet to be explained. Read More

Pediatr Dermatol 2019 Nov;36(6):944-945

UNC School of Medicine, Chapel Hill, North Carolina.

Indian J Dermatol Venereol Leprol 2020 May-Jun;86(3):329-330

Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India.

Cureus 2019 Jun 20;11(6):e4959. Epub 2019 Jun 20.

Dermatology, San Diego Family Dermatology, National City, USA.

Osteoma cutis is a benign cutaneous lesion characterized by the presence of bone within the dermis or subcutaneous fat. It most often develops in association with other skin lesions such as cutaneous tumors. Nevus sebaceus is a benign hamartoma of the skin that is composed of epidermal and dermal components. Read More

Acta Derm Venereol 2019 Nov;99(12):1190-1191

Unit of Dermatology, Department of Medicine - DIMED, University of Padova, Via Gallucci 4, IT-35121 Padova, Italy.

Dermatol Ther 2019 09 10;32(5):e13046. Epub 2019 Sep 10.

IDI-IRCCS, Rome, Italy.

J Cutan Pathol 2019 Jul;46(7):467-470

Department of Dermatology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.

J Craniofac Surg 2019 Oct;30(7):e688-e691

Baskent University, Medicine Faculty, General Surgery Department, Konya Uygulama ve Arastirma Hastanesi, Selcuklu, Konya, Turkey.

Aim: Cutaneous bone formation is an uncommon lesion of the skin. It may be primary or secondary. Secondary lesions are mostly associated with melanocytic nevi. Read More

Eur J Dermatol 2019 Jun;29(3):336-337

Department of Dermatology,, Inserm U1253, University of Tours, Tours, France.

Int J Surg Pathol 2019 Dec 28;27(8):859-867. Epub 2019 Jun 28.

Johns Hopkins University, Baltimore, MD, USA.

Nonhereditary heterotopic ossification (NHO) is a common complication of trauma. Progressive osseous heteroplasia (POH) and fibrodysplasia ossificans progressiva (FOP) are rare genetic causes of heterotopic bone. In this article, we detail the vascular patterning associated with genetic versus NHO. Read More

Pediatr Dermatol 2019 Sep 18;36(5):732-734. Epub 2019 Jun 18.

The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.

We describe a 4-week-old baby boy who presented with white firm cutaneous nodules and failure to thrive. He did not have dysmorphic features, and laboratory tests including serum calcium, phosphorous, thyroid function, and parathyroid hormone level were within normal ranges. Whole exome sequencing revealed an inactivating mutation in GNAS that was previously described as causing pseudohypoparathyroidism. Read More

Cureus 2019 Mar 26;11(3):e4323. Epub 2019 Mar 26.

Dermatology, San Diego Family Dermatology, National City, USA.

Osteoma cutis can occur as a primary or secondary cutaneous lesion. Isolated lesions of perforating osteoma cutis are uncommon and can present with varying clinical features. Adverse events that can occur following placement of a tattoo include benign and malignant neoplasms, dermatoses, infections, and miscellaneous complications. Read More

Int J Trichology 2019 Mar-Apr;11(2):93-95

Department of Laboratory and Blood Bank, King Fahd Hospital, Hofuf, Al-Ahsa, Saudi Arabia.