Brief Reports
Familial occurrence of adiposis dolorosa,☆☆,

https://doi.org/10.1067/mjd.2001.110872Get rights and content

Abstract

Adiposis dolorosa is a rare condition characterized by multiple painful lipomas. We describe two typically affected siblings who were found to have at least 5 affected first-degree relatives in two generations. Manifestations were remarkably variable, ranging from complete disability to solitary asymptomatic tumors. Review of histopathologic findings did not reveal any features that might distinguish the tumors from common sporadic lipomas. Mutational analysis excluded the 8344 A to G mitochondrial mutation seen in other patients with multiple lipomas. Adiposis dolorosa may be an extreme manifestation of the more common condition of familial multiple lipomas. Further work is needed to define the genetic basis of these conditions. (J Am Acad Dermatol 2001;44:132-6.)

Section snippets

Patients and methods

The proband and his sister were referred to the Neurofibromatosis Clinic at Massachusetts General Hospital with a presumptive diagnosis of neurofibromatosis of unspecified type. Subsequently, additional family members were invited to participate. All study subjects underwent a complete dermatologic and neurologic examination by two study authors (R. C., M. M.). Blood samples were collected from affected and unaffected family members. Mitochondrial DNA was extracted from peripheral blood

Results

A total of 9 affected persons were identified in two generations (Fig 1).

. Pedigree of this family. Further clinical details are presented in Table I.

Manifestations ranged from single asymptomatic tumors (patient III.l) to complete disability from widespread painful involvement with tumors (patient III.5). Seven of the 9 affected persons agreed to participate in this study (Table I). Most tumors were visible from the skin surface and were firm, discrete, and nontender to direct palpation (Fig 2,

Patient III.5

The proband was a 52-year-old man noted to have “birthmarks” as a child, which he believed to have significantly faded in subsequent years. In the second decade, he began to notice “lumps” on his skin, which were somewhat painful. Approximately 10 years before evaluation, the tumors became increasingly painful. Nine years before evaluation, he underwent resection of 5 separate tumors on the right arm and the right side of the chest wall, which were given a histopathologic diagnosis of “lipoma.”

Discussion

We describe two siblings with obesity and widespread involvement by pathologically confirmed painful lipomas, consistent with the diagnosis of adiposis dolorosa. Tumors consistent with lipomas were also observed in 4 of their 6 siblings and their mother; by report a fifth sibling and their maternal uncle were affected. None of their relatives had significant pain associated with their tumors. Obesity was present in many, but not all, of their affected relatives. The proband and his sister were

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    Supported by grant R01NS35878-02 from the National Institutes of Health (to M. M.).

    ☆☆

    Reprint requests: Mia MacCollin, Neuroscience Center, MGH-East, Bldg 149, 13th St, Charlestown, MA 02129. E-mail: [email protected].

    J Am Acad Dermatol 2001;44:132-6.

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